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Vowel

Vowel

In phonetics, a vowel is a sound in spoken language that is characterized by an open configuration of the vocal tract where there is no build-up of air pressure above the glottis. This contrasts with consonants, which are characterized by a constriction or closure at one or more points along the vocal tract. The additional requirement is that vowels function as syllabic units: it is this criterion that distinguishes vowels from semivowels (and approximants, which in some languages may be slightly more constricted). In most languages, vowels usually form the nucleus or peak of a syllable, whereas consonants form the onset and coda. However, some languages allow sounds that wouldn't normally be classified as vowels to form the nucleus of a syllable, such as the sound of l in the English word table (the final e is not pronounced), or the sound of r in the Czech word vrba (meaning "willow"). The non-vowel sounds that may function as syllable nuclei are called sonorants. (In some languages, such as Tashlhyt Berber and Oowekyala, non-sonorant consonants can also form the nucleus of a syllable.) The word vowel comes from the Latin word vocalis, meaning "uttering voice" or "speaking".

Articulation

The articulatory features that distinguish different vowels in a language are said to determine the vowel's quality. Daniel Jones developed the cardinal vowel system to describe vowels in terms of the common features height (vertical dimension), backness (horizontal dimension) and roundedness (lip position). These three parameters are indicated in the schematic IPA vowel diagram on right. There are however still more possible features of vowel quality, such the velum position (nasality), type of vocal fold vibration (phonation), and tongue root position.

Height

Height refers to either the vertical position of the tongue relative to the roof of the mouth or the aperture of the jaw. In high vowels, such as i] and u], the tongue is positioned high in the mouth, whereas in low vowels, such as a], the tongue is positioned low in the mouth. Sometimes the terms open and close are used as synonyms for low and high for describing vowels. The International Phonetic Alphabet identifies seven different vowel heights, although no known language distinguishes all seven:
- close vowel (high vowel)
- near-close vowel
- close-mid vowel
- mid vowel
- open-mid vowel
- near-open vowel
- open vowel (low vowel) It may be that some varieties of have five contrasting heights. The Bavarian dialect of Amstetten has thirteen long vowels, reported to be distinguished as four heights (close, close-mid, mid, and near-open) among the front unrounded, front rounded, and back rounded vowels, plus an open central vowel: . Otherwise, the usual limit on the number of vowel heights is four. The parameter of vowel height appears to be the most primary feature of vowels cross-linguistically in that all languages use height constrastively. The other possible parameters, such as backness and roundedness (explained below), are not used in all languages.

Backness

Backness refers to the horizontal tongue position during the articulation of a vowel relative to the back of the mouth. In front vowels, such as , the tongue is positioned forward in the mouth, whereas in back vowels, such as , the tongue is positioned towards the back of the mouth. The International Phonetic Alphabet identifies five different degrees of vowel backness, although no known language distinguishes all five:
- front vowel
- near-front vowel
- central vowel
- near-back vowel
- back vowel The highest number of constrastive degrees of backness is 3.

Roundedness

Roundedness refers to whether the lips are rounded or not. In most languages, roundedness is a reinforcing feature of mid to high back vowels, and not distinctive. Usually the higher a back vowel, the more intense the rounding. However, some languages treat roundedness and backness separately, such as French and German (with front rounded vowels), most Uralic languages ( has a rounding contrast for /o/ and front vowels), Turkic languages (with an unrounded /u/), Vietnamese (with back unrounded vowels), and Korean (with a contrast in both front and back vowels). Nonetheless, even in languages such as German and Vietnamese, there is usually some correlation between rounding and backness: Front rounded vowels tend to be less front than front unrounded vowels, and back unrounded vowels tend to be less back than back rounded vowels. That is, the placement of unrounded vowels to the left of rounded vowels on the IPA vowel chart is reflective of their typical position. Different kinds of labialization are also possible. The /u/, for example, is not rounded like English /u/, where the lips are protruded (or pursed), but neither are the lips spread to the sides as they are for unrounded vowels. Rather, they are compressed in both directions, leaving a slot between the lips for the air to escape. (See Vowel roundedness for illustrations.) Swedish is one of the few languages where this feature is contrastive, have both protruded-lip and compressed-lip high front vowels. In many treatments, both are considered a type of rounding, and are often called endolabial rounding (pursed, where the insides of the lips approach each other) and exolabial rounding (compressed, where the margins of the lips approach each other). However, other phoneticians do not believe that these are subsets of a single phenomenon of rounding, and prefer instead the three independent terms rounded, compressed, and spread (for unrounded).

Nasalization

Nasalization refers to whether some of the air escapes through the nose. In nasal vowels, the velum is lowered, and some air travels through the nasal cavity as well as the mouth. An oral vowel is a vowel in which all air escapes through the mouth. French, Polish and Portuguese contrast nasal and oral vowels.

Phonation

Voicing describes whether the vocal cords are vibrating during the articulation of a vowel. Most languages only have voiced vowels, but several Native American languages, such as Cheyenne and Totonac, contrast voiced and devoiced vowels. Vowels are devoiced in whispered speech. As in Japanese and Quebec French, vowels that are between voiceless consonants are often devoiced. Modal voice, creaky voice, and breathy voice (murmured vowels) are phonation types that are used contrastively in some languages. Often, these co-occur with tone or stress distinctions; in the Mon language, vowels pronounced in the high tone are also produced with creaky voice. In cases like this, it can be unclear whether it is the tone, the voicing type, or the pairing of the two that is being used for phonemic contrast. This combination of phonetic cues (i.e. phonation, tone, stress) is known as register or register complex.

Tongue root retraction

Advanced tongue root (ATR) is a feature common across much of Africa. The contrast between advanced and retracted tongue root resembles the tense/lax contrast acoustically, but they are articulated differently. ATR vowels involve noticeable tension in the vocal tract.

Secondary narrowings in the vocal tract

Pharyngealized vowels occur in some languages; Sedang uses this contrast, as do the Tungusic languages. Pharyngealisation is similar in articulation to retracted tongue root, but is acoustically distinct. A stronger degree of pharyngealisation occur in the Northeast Caucasian languages and the Khoisan languages. These might be called epiglottalized, since the primary constriction is at the tip of the epiglottis. The greatest degree of pharyngealisation is found in the strident vowels of the Khoisan languages, where the larynx is raised, and the pharynx constricted, so that either the epiglottis or the arytenoid cartilages vibrate instead of the vocal chords. Note that the terms pharyngealized, epiglottalized, strident, and sphincteric are sometimes used interchangeably.

Rhotic vowels

Rhotic vowels are the "ar-colored vowels" of English and a few other languages.

Tenseness/checked vowels vs. free vowels

Tenseness is used to describe the opposition of tense vowels as in leap, suit vs. lax vowels as in lip, soot. This opposition has traditionally been thought to be a result of greater muscular tension, though phonetic experiments have repeatedly failed to show this. Unlike the other features of vowel quality, tenseness is only applicable to the few languages that have this opposition (mainly Germanic languages, e.g. English), whereas the vowels of the other languages (e.g. Spanish) cannot be described with respect to tenseness in any meaningful way. In most Germanic languages, lax vowels can only occur in closed syllables. Therefore, they're also known as checked vowels, whereas the tense vowels are called free vowels since they can occur in any kind of syllable.

Acoustics

free vowel The acoustics of vowels are fairly well-understood. The different vowel qualities are realized in acoustic analyses of vowels by the relative values of the formants, acoustic resonances of the vocal tract which show up as dark bands on a spectrogram. The vocal tract acts as a resonant cavity, and the position of the jaw, lips, and tongue affect the parameters of the resonant cavity, resulting in different formant values. The acoustics of vowels can be visualized using spectrograms, which display the acoustic energy at each frequency, and how this changes with time. The first formant, abbreviated "F1", corresponds to vowel openness (vowel height). Open vowels have high F1 frequences while close vowels have low F1 frequencies, as can be seen at right: The and have similar low first formants, whereas has a higher formant. The second formant, F2, corresponds to vowel frontness. Back vowels have low F2 frequencies while front vowels have high F2 frequencies. This is very clear at right, where the front vowel has a much higher F2 frequency than the other two vowels. However, in open vowels the high F1 frequency forces a rise in the F2 frequency as well, so a better measure of frontness is the difference between the first and second formants. For this reason, vowels are usually plotted as F1 vs. F2 – F1. This is the case for the vowel chart at the top of this page. (This dimension is usually called 'backness' rather than 'frontness', but the term 'backness' can be counterintuitive when discussing formants.) R-colored vowels are characterized by lowered F3 values. Rounding is generally realized by a complex relationship between F2 and F3 that tends to reinforce vowel backness. One effect of this is that back vowels are most commonly rounded while front vowels are most commonly unrounded; another is that rounded vowels tend to plot to the right of unrounded vowels in vowel charts. That is, there is a reason for plotting vowel pairs the way they are.

Prosody and intonation

The features of vowel prosody are often described independently from vowel quality. In non-linear phonetics, they are located on parallel layers. The features of vowel prosody are usually considered not to apply to the vowel itself, but to the syllable, as some languages do not contrast vowel length separately from syllable length. Intonation encompasses the changes in pitch, intensity, and speed of an utterance over time. In tonal languages, in most cases the tone of a syllable is carried by the vowel, meaning that the relative pitch or the pitch contour that marks the tone is superimposed on the vowel. If a syllable has a high tone, for example, the pitch of the vowel will be high. If the syllable has a falling tone, then the pitch of the vowel will fall from high to low over the course of uttering the vowel. Length or quantity refers to the abstracted duration of the vowel. In some analyses this feature is described as a feature of the vowel quality, not of the prosody. Japanese, Finnish, Hungarian, Arabic and Latin have a two-way phonemic contrast between short and long vowels. The Mixe language has a three-way contrast among short, half-long, and long vowels, and this has been reported from a few other languages, in not all of which is the distinction phonemic. Long vowels are written in the IPA with a triangular colon, which has two equilateral triangles pointing at each other in place of dots (). The IPA symbol for half-long vowels is the top half of this (). Longer vowels are sometimes claimed, but these are always divided between two syllables. It should be noted that the length of the vowel is a grammatical abstraction, and there may be more phonologically distinctive lengths. For example, in Finnish, there are five different physical lengths, because stress is marked with length on both grammatically long and short vowels. However, Finnish stress is not lexical and is always on the first two moras, thus this variation serves to separate words from each other. In non-tonal languages, like English, intonation encompasses lexical stress. A stressed syllable will typically be pronounced with a higher pitch, intensity, and length than unstressed syllables. For example in the word intensity, the vowel represented by the letter 'e' is stressed, so it is longer and pronounced with a higher pitch and intensity than the other vowels.

Monophthongs, diphthongs, triphthongs

A vowel sound whose quality doesn't change over the duration of the vowel is called a monophthong. Monophthongs are sometimes called "pure" or "stable" vowels. A vowel sound that glides from one quality to another is called a diphthong, and a vowel sound that glides between three qualities is a triphthong. All languages have monophthongs and many languages have diphthongs, but triphthongs or vowel sounds with even more target qualities are relatively rare cross-linguistically. English has all three types: the vowel sound in hit is a monophthong , the vowel sound in boy is in most dialects a diphthong , and the vowel sounds of way , flower (BrE AmE ) form a triphthong (dissylabic in the latter cases), although the particular qualities vary by dialect. The longest sensible word with most consecutive vowels is Finnish riiuuyöaieuutinen (courting night intention news [certainly yellow press stuff!]), syllabicated rii-uu-yö-ai-e-uu-ti-nen. In phonology, diphthongs and triphthongs are distinguished from sequences of monophthongs by whether or not the vowel sound may be analyzed into different phonemes or not. For example, the vowel sounds in a two-syllable pronunciation of the word flower (BrE AmE ) phonetically form a dissyllabic triphthong, but are phonologically a sequence of a diphthong (represented by the letters ) and a monophthong (represented by the letters ). Some linguists use the terms diphthong and triphthong only in this phonemic sense.

Vowels in languages

The semantic significance of vowels varies widely depending on the language. In some languages, particularly Semitic languages, vowels mostly serve to denote inflections. This is similar to English man vs. men. In fact, the alphabets used to write the Semitic languages, such as the Hebrew alphabet and the Arabic alphabet, do not ordinarily mark all the vowels. These alphabets are called abjads. Although it is possible to construct simple English sentences that can be understood without written vowels (cn y rd ths?), extended passages of English lacking written vowels are difficult if not impossible to completely understand (consider dd, which could be any of add, aided, dad, dada, dead, deed, did, died, dodo, dud, dude, eddie, iodide, or odd). In most languages, vowels are an unchangeable part of the words, as in English man vs. moon which are not different inflectional forms of the same word, but different words. Vowels are especially important to the structures of words in languages that have very few consonants (like Polynesian languages such as Maori and Hawaiian), and in languages whose inventory of vowels is larger than its inventory of consonants.

Vowel systems

Most languages have 3–7 vowels, the following 5-vowel system being the most common: This particular configuration is common because it makes the most efficient use of the vowel space, so slight variations in a vowel are not easily confused for a different sound. Spanish and Modern Greek, for example, have this vowel system; Latin had a similar system that also distinguished between long and short vowels, although that distinction wasn't made in written Latin; it is for this reason that the Latin alphabet has five vowel letters. All languages have at least two vowels; the Tshwizhyi and Abzhui dialects of Abkhaz contrasts only and , with significant allophony. (There have been proposals to posit only one vowel in some Abkhaz dialects; however, most linguists who are familiar with Abkhaz do not accept this theory.) Three-vowel systems have been noted in a number of languages. These include:
- (Arabic, Inuktitut, Quechua),
- (Pirahã),
- (Wichita). A few languages, such as Navajo, have four-vowel systems that lack /u/ but there is no known natural language that lacks some form of a. At the other end of the spectrum, languages with more than twelve vowels are relatively uncommon, although some widely-spoken languages have large vowel inventories, particularly Germanic languages. For example, English has 14–20 vowels (including diphthongs) depending on dialect, and Swedish has 17 distinct vowel qualities in the height-backness-roundedness spectrum, although these also involve a length contrast, and the long vowels have diphthongized allophones. French has 16 vowel qualities, including nasals, and the previously-mentioned Sedang has 24 distinct monophthongs, which it achieves by contrasting phonation on seven vowel qualities. uses phonation and nasalization with five vowel qualities to achieve approximately 40 vowels, most of which may occur both long and short.

Written vowels

The name "vowel" is often used for the symbols used for representing vowel sounds in a language's writing system, particularly if the language uses an alphabet. In the Latin alphabet, the vowel letters are usually A, E, I, O, U, and in some languages Y, as in English and W, as in Welsh. There is necessarily not a direct one-to-one correspondence between the vowel sounds of a language and the vowel letters. Many languages that use a form of the Latin alphabet have more vowel sounds than can be represented by the standard set of five vowel letters. In the case of English, the five primary vowel letters can represent both long and short vowel sounds (some of the long vowel sounds in English are actually diphthongs). Furthermore, in English some vowel sounds are represented by combinations of vowel letters, such as the ea in beat or by a vowel letter and an approximant letter, as the ow in how, or the er in her. Other languages cope with the limitation in the number of Latin vowel letters in similar ways. Many languages, like English, make extensive use of combinations of vowel letters to represent various sounds. Other languages add diacritical marks to vowels, such as accents or umlauts, to represent the variety of possible vowel sounds. Some languages have also constructed additional vowel letters by modifying the standard Latin vowels in other ways, such as æ or ø that are found in some of the Scandinavian languages. The International Phonetic Alphabet has a set of 28 symbols to represent the range of basic vowel qualities, and a further set of diacritics to denote variations from the basic vowel.

Written vowels in writing systems


- Arabic: دَ دِ دُ دَ‌ا دَ‌ى دِ‌ي دُو
- Devanagari: Independent vowels: अ आ इ ई उ ऊ ए ऐ ओ औ Dependent vowels: ा ि ी ु ू े ै ो ौ
- Guaraní: oral: a e i o u y; nasal: ã ẽ ĩ õ ũ ỹ
- Japanese: normal: あいうえお grammatical: へを
- Korean: ㅏ ㅐ ㅑ ㅒ ㅓ ㅔ ㅕ ㅖ ㅗ ㅘ ㅙ ㅚ ㅛ ㅜ ㅝ ㅞ ㅟ ㅠ ㅡ ㅢ ㅣ
- Latin: a e i o u
- Finnish: back: a u o; neutral: i e; front: ä y ö; long vowels doubled (aamu, uuma, etc.)
- Estonian and Võro: a e i o u ü ä ö õ (y), half-long and over-long vowels doubled
- Skolt Sami: u o õ å a, i e â ä (normal), u´ o´ õ´ å´ a´, i´ e´ â´ ä´ (centralized), long vowels doubled (lääij, nââ'ǩǩted, etc.).
- Norwegian and Swedish: back ('hard'): a o u å; front ('soft'): e i y æ/ä ø/ö
- Russian: non-iotating ('hard'): А О У Ы Э; iotating ('soft'): Я Ё Ю И Е

See also


- list of phonetics topics
- table of vowels
- list of vowels

References


- Handbook of the International Phonetic Association, 1999. Cambridge University ISBN 0521637511
- Johnson, Keith, Acoustic & Auditory Phonetics, second edition, 2003. Blackwell ISBN 1405101237
- Ladefoged, Peter, A Course in Phonetics, fourth edition, 2000. Heinle ISBN 0155073192
- Ladefoged, Peter, Elements of Acoustic Phonetics, 1995. University of Chicago ISBN 0226467643
- Ladefoged, Peter and Ian Maddieson, The Sounds of the Worlds Languages, 1996. Blackwell ISBN 0631198156
- Ladefoged, Peter, Vowels and Consonants: An Introduction to the Sounds of Languages, 2000. Blackwell ISBN 0631214127.
- Lindau, Mona. (1978). Vowel features. Language, 54, 541-563.
- Stevens, Kenneth N. (1998). Acoustic phonetics. Current studies in linguistics (No. 30). Cambridge, MA: MIT. ISBN 0-2621-9404-X.
- Stevens, Kenneth N. (2000). Toward a model for lexical access based on acoustic landmarks and distinctive features. The Journal of the Acoustical Society of America, 111 (4), 1872-1891.
- Korhonen, Mikko. Koltansaamen opas, 1973. Castreanum ISBN 951-45-0189-6

External links


- [http://hctv.humnet.ucla.edu/departments/linguistics/VowelsandConsonants/vowels/contents.html Vowels and Consonants] Online examples from Ladefoged's Vowels and Consonants, referenced above.
- [http://www.oneletterwords.com Dictionary of All-Vowel Words]: a free online dictionary with over 1,000 words with no consonants and examples of usage from literature.
- roa-rup:Vocală ko:홀소리 ja:母音

Phonetics

:This article is about linguistics. For the voicemail transcription service, see Phonetic (service) Phonetics (from the Greek word φωνή, phone = sound/voice) is the study of sounds (voice). It is concerned with the actual properties of speech sounds (phones) as well as those of non-speech sounds, and their production, audition and perception, as opposed to phonology, which operates at the level of sound systems and abstract sound units (such as phonemes and distinctive features). Phonetics deals with the sounds themselves rather than the contexts in which they are used in languages. Discussions of meaning (semantics) therefore do not enter at this level of linguistic analysis. While writing systems and alphabets are in many cases closely related to the sounds of speech, strictly speaking, phoneticians are more concerned with the sounds of speech than the symbols used to represent them. So close is the relationship between them however, that many dictionaries list the study of the symbols (more accurately semiotics) as a part of phonetic studies. On the other hand, logographic writing systems typically give much less phonetic information, but the information is not necessarily non-existent. For instance, in Chinese characters, a phonetic refers to the portion of the character that hints at its pronunciation, while the radical refers to the portion that serves as a semantic hint. Characters featuring the same phonetic typically have similar pronunciations, but by no means are the pronunciations predictably determined by the phonetic due to the fact that pronunciations diverged over many centuries while the characters remained the same. Not all Chinese characters are radical-phonetic compounds, but a good majority of them are. Phonetics has three main branches:
- articulatory phonetics, concerned with the positions and movements of the lips, tongue, vocal tract and folds and other speech organs in producing speech
- acoustic phonetics, concerned with the properties of the sound waves and how they are received by the inner ear
- auditory phonetics, concerned with speech perception, principally how the brain forms perceptual representations of the input it receives. There are over a hundred different phones recognized as distinctive by the International Phonetic Association (IPA) and transcribed in their International Phonetic Alphabet. Phonetics was studied as early as 2500 years ago in ancient India, where there existed numerous phonetically extremely accurate treatises on the orthoepy of Sanskrit and a Tamil grammar book Tolkāppiyam (c. fifth century BCE) that described the place and manner of articulation of consonants. Most Indian languages group and order their consonants based on place and methods of articulation.

See also


- List of phonetics topics
- Speech processing
- Acoustics
- biometric word list
- Phonetics departments at universities
- IPA
- X-SAMPA

External links and references


- [http://www2.unil.ch/ling/english/phonetique/table-eng.html On-line phonetics course]
- [http://www.ling.upenn.edu/courses/Summer_2004/ling001/lecture2.html The sounds and sound patterns of language] U Penn
- [http://hctv.humnet.ucla.edu/departments/linguistics/VowelsandConsonants/ UCLA lab data]
- [http://archive.phonetics.ucla.edu/ UCLA Phonetics Lab Archive]
- [http://www.ims.uni-stuttgart.de/phonetik/EGG/page1.htm EGG and Voice Quality] (electroglottography, phonation, etc.)
- [http://web.uvic.ca/ling/resources/ipa/handbook.htm IPA handbook]
- [http://www.ling.lu.se/research/speechtutorial/tutorial.html Speech Analysis Tutorial]

Bibliography


- Catford, J. C. (1977). Fundamental problems in phonetics. Bloomington, IN: Indiana University Press. ISBN 0-253-32520-X.
- Clark, John; & Yallop, Colin. (1995). An introduction to phonetics and phonology (2nd ed.). Oxford: Blackwell. ISBN 0-631-19452-5.
- Hardcastle, William J.; & Laver, John (Eds.). (1997). The handbook of phonetic sciences. Oxford: Blackwell Publishers. ISBN 0-6311-8848-7.
- Ladefoged, Peter. (1982). A course in phonetics (2nd ed.). London: Harcourt Brace Jovanovich.
- Ladefoged, Peter. (2003). Phonetic data analysis: An introduction to fieldwork and instrumental techniques. Malden, MA: Blackwell Publishing. ISBN 0-631-23269-9 (hbk); ISBN 0-631-23270-2 (pbk).
- Ladefoged, Peter; & Maddieson, Ian. (1996). The sounds of the world's languages. Oxford: Blackwell Publishers. ISBN 0-631-19814-8 (hbk); ISBN 0-631-19815-6 (pbk).
- Maddieson, Ian. (1984). Patterns of sounds. Cambridge studies in speech science and communication. Cambridge: Cambridge University Press.
- Pike, Kenneth L. (1943). Phonetics: A critical analysis of phonetic theory and a technic for the practical description of sounds. Ann Arbor: University of Michigan Press.
- Pisoni, David B.; & Remez, Robert E. (Eds.). (2004). The handbook of speech perception. Oxford: Blackwell. ISBN 0-6312-2927-2.
- Rogers, Henry. (2000). The Sounds of Language: An Introduction to Phonetics. Harlow, Essex: Pearson. ISBN 0-582-38182-7.
- Stevens, Kenneth N. (1998). Acoustic phonetics. Current studies in linguistics (No. 30). Cambridge, MA: MIT Press. ISBN 0-2621-9404-X.
- ko:음성학 ja:音声学

Sound

:This article is about compression waves. For other meanings, see sound (disambiguation). sound (disambiguation). Yellow: cochlea. Green: auditory receptor cells. Purple: frequency spectrum of hearing response. Orange: nerve impulse.)]] Sound is vibration, as perceived by the sense of hearing. We usually hear vibrations that travel through air, but sound can also travel through gases, liquids and solids. It cannot travel through a vacuum (such as exists in outer space). When the vibrations reach our ears, they are converted into nerve impulses that are sent to our brains, allowing us to perceive the sound. In more technical language, sound "is an alternation in pressure, particle displacement, or particle velocity propagated in an elastic material" (Olson 1957) or series of mechanical compressions and rarefactions or longitudinal waves that successively propagate through media that are at least a little compressible (solid, liquid or gas but not vacuum). In sound waves parts of matter (molecules or groups of molecules) move in a direction of the spreading of the disturbance (as opposite to transversal waves). The cause of sound waves is called the source of waves, e.g., a violin string vibrating upon being bowed or plucked. A sound wave is usually represented graphically by a wavy, horizontal line; the upper part of the wave (the crest) indicates a compression and the lower part (the trough) indicates a rarefaction.

Attributes of sound

The characteristics of sound are frequency, wavelength, amplitude and velocity.

Frequency and wavelength

The frequency is the number of air pressure oscillations per second at a fixed point occupied by a sound wave. One single oscillatory cycle per second corresponds to 1 Hz. The wavelength is the distance between two successive crests and is the distance that a wave travels in the time of one oscillatory cycle. The wavelength of a sound wave of frequency f and travelling at speed c is given by c/f. Given a speed of 343 m/s, a 20 kHz sound wave has a wavelength of about 17 mm. For comparison, an A440 has a nominal wavelength of about 78 cm, and a 20 Hz sound wave has a wavelength of 17 m. Suppose sound is emitted as a sine wave travelling outward spherically from a point source. The pressure (above ambient, see gauge pressure) of the sound wave can be written as :P(r,t) = P_0 \sin\left(2 \pi f \left(t-\frac\right)\right) where P(r,t) is the pressure at distance r at time t, P0 is the amplitude of the pressure variation (0 to peak), f is the frequency of oscillation, and c is the speed of sound.

Amplitude

The amplitude is the magnitude of sound pressure change within the wave, or basically, the maximum amount of pressure at any point in the sound wave. A sound wave is caused literally by increases in pressure at certain points (of a material) causing a "domino effect" outward, the high pressure points are the crests mentioned above, and behind them are low pressure points which tail them, those are the troughs mentioned above. Amplitude is the maximal displacement of particles of matter that is obtained in compressions, where the particles of matter move towards each other and pressure increases the most and in rarefactions, where the pressure lessens the most. See also particle displacement and particle velocity. While the pressure can be measured in pascals, the amplitude is more often referred to as sound pressure level and measured in decibels, or dBSPL, sometimes written as dBspl or dB(SPL). When the measurement is adjusted based on how the human ear perceives loudness based on frequency, it is called dBA or A-weighting. See decibels for a more thorough discussion.
- [http://www.makeitlouder.com/Decibel%20Level%20Chart.txt Chart showing decibel level of many sounds]

Velocity

Sound's propagation speed depends on the type, temperature and pressure of the medium through which it propagates. Under normal conditions, however, because air is nearly a perfect gas, the speed of sound does not depend on air pressure. In dry air at 20 °C (68 °F) the speed of sound is approximately 343 m/s (approximately 1 meter every 2.9 milliseconds). The speed of sound relates frequency to wavelength. Thus, a tone of 343 Hz (F4 minus 31 cents) traveling in air has a wavelength of 1 meter.

Types of sounds

Noises are irregular and disordered vibrations including all possible frequencies. Their wave diagram does not repeat in time. Noise is an aperiodic series of waves. Sounds that are sine waves with fixed frequency and amplitude are perceived as pure tones. While sound waves are usually visualised as sine waves, sound waves can have arbitrary shapes and frequency content, limited only by the apparatus that generates them and the medium through which they travel. In fact, most sound waves consist of multiple overtones or harmonics and any sound can be thought of as being composed of sine waves (see additive synthesis). Waveforms commonly used to approximate harmonic sounds in nature include sawtooth waves, square waves and triangle waves. While a sound may still be referred to as being of a single frequency (for example, a piano striking the A above middle C is said to be playing a note at 440 Hz), the sound perceived by a listener will be colored by all of the sound wave's frequency components and their relative amplitudes, as well as how the sound changes over time (see timbre.) For convenience in this article, however, it is best to think of sound waves as sine waves.

Perception of sound

The frequency range of sound audible to humans is approximately between 20 and 20,000 Hz. This range varies by individual and generally shrinks with age. It is also an uneven curve - sounds near 3,500 Hz are often perceived as louder than a sound with the same amplitude at a much lower or higher frequency. Above and below this range are ultrasound and infrasound, respectively. The amplitude range of sound for humans has a lower limit of 0dBSPL, called the threshold of hearing. Sound is technically at its upper limit at 194.09 dB. Above this level it should be called a shock wave. Sounds begin to do damage to ears at 85 dBSPL and sounds above approximately 130 dBSPL (called the threshold of pain) cause pain. Again, this range varies by individual and changes with age. The perception of sound is the sense of hearing. In humans and many animals this is accomplished by the ears, but loud sounds and low frequency sounds can be perceived by other parts of the body through the sense of touch. Sounds are used in several ways, most notably for communication through speech or, for example, music. Sound perception can also be used for acquiring information about the surrounding environment in properties such as spatial characteristics and presence of other animals or objects. For example, bats use one sort of echolocation, ships and submarines use sonar, and humans can determine spatial information by the way in which they perceive sounds.

See also

Audio signal processing | Auditory imagery | Beats | Cycles | Doppler Effect | Infrasound | Music | Soundproofing | Sound reproduction | Phonons | Physics of music | Pitch (music) | Radiation of sound | Resonance | Rijke tube | Steam whistle | Timbre | Voyager Golden Record | Ultrasound | Wave | Noise | Reflection | Echo | Reverberation | Decibel | Sound localization | Microphone | Loudspeaker |

Sound measurement


- Decibel, sone, mel, phon
- Sound pressure, acoustic pressure, sound pressure level
- Particle velocity, acoustic velocity, sound velocity
- Particle displacement, particle amplitude, particle acceleration
- Sound power, acoustic power, sound power level
- Sound intensity, acoustic intensity, sound intensity level
- Acoustic impedance, sound impedance, characteristic impedance
- Sound speed, speed of sound, amplitude
- Sound energy flux
- See also Template:Sound measurements

Reference


- Olson (1957) cited in Roads, Curtis (2001). Microsound. MIT. ISBN 0262182157.
- Roederer, Juan C. Introduction to the Physics and Psychophysics of Music (2nd ed.). New York: Springer-Verlag, 1979.
- Charles Dodge and Thomas A. Jerse, "Computer Music". New York, Schirmer Books, 1997. ISBN 0028646827
- Grey, J. M. "An Exploration of Musical Timbre." Doctoral dissertation, Stanford University, 1975.

External links


- [http://hyperphysics.phy-astr.gsu.edu/hbase/sound/soucon.html HyperPhysics: Sound and Hearing]
- [http://www.sengpielaudio.com/Calculations03.htm Audio calculations and online acoustics conversion engine]
- [http://www.acoustics.salford.ac.uk/schools/index.htm Sounds Amazing a learning resource for sound and waves]
- [http://www.plosbiology.org/plosonline/?request=get-document&doi=10.1371%2Fjournal.pbio.0030026 Computation Provides a Virtual Recording of Auditory Signaling - PLoS Biol 2005.3(1).e26] Category:Hearing Category:Waves ko:소리 ja:音 simple:Sound th:เสียง

Vocal tract

The vocal tract is that cavity in animals and humans, where sound that is produced at the sound source (larynx in mammals; syrinx in birds) is filtered. In birds it consists of the trachea, the syrinx, the oral cavity, the upper part of the esophagus, and the beak. In mammals it consists of the laryngeal cavity, the pharynx, the oral cavity, and the nasal cavity, and in some nonhuman mammals maybe also the airsacs.

Glottis

thumb The space between the vocal cords is called the glottis. As the vocal cords vibrate, the resulting vibration produces a "buzzing" quality to the speech, called voice or voicing. Sounds production involving only the glottis is called glottal. English has a voiceless glottal fricative spelt "h". In many accents of English the glottal stop (made by pressing the folds together) is used as a variant allophone of the phoneme (and in some dialects, occasionally of and ); in some languages, this sound is a phoneme of its own. thumb Skilled players of the Australian didgeridoo restrict their glottal opening in order to produce the full range of timbres available on the instrument. (See "Acoustics: The vocal tract and the sound of a didgeridoo", by Tarnopolsky et al. in Nature 436, 39 (7 July 2005)). The vibration produced is an essential component of voiced consonants as well as vowels. If the vocal folds are drawn apart, air flows between them causing no vibration, as in the production of voiceless consonants.
- Voiced consonants include
- Voiceless consonants include See also: Phonation Category:Phonetics

Consonant

:See also consonance in music. A consonant is a sound in spoken language that is characterized by a closure or stricture of the vocal tract sufficient to cause audible turbulence. The word consonant comes from Latin and means "sounding with" or "sounding together", the idea being that consonants don't sound on their own, but only occur with a nearby vowel, which is the case in Latin. This conception of consonants, however, does not reflect the modern linguistic understanding which defines consonants in terms of vocal tract constriction. Since the number of consonants in the world's languages is much greater than the number of consonant letters in any one alphabet, linguists have devised systems such as the International Phonetic Alphabet (IPA) to assign a unique symbol to each possible consonant. In fact, the Latin alphabet, which is used to write English, has fewer consonant letters than English has consonant sounds, so some letters represent more than one consonant, and digraphs like "sh" and "th" are used to represent some sounds. Many speakers aren't even aware that the "th" sound in "this" is a different sound from the "th" sound in "thing" (in the IPA they're [ð] and [θ], respectively). Each consonant can be distinguished by several features:
- The manner of articulation is the method that the consonant is articulated, such as nasal (through the nose), stop (complete obstruction of air), or approximant (vowel like).
- The place of articulation is where in the vocal tract the obstruction of the consonant occurs, and which speech organs are involved. Places include bilabial (both lips), alveolar (tongue against the gum ridge), and velar (tongue against soft palate). Additionally, there may be a simultaneous narrowing at another place of articulation, such as palatalisation or pharyngealisation.
- The phonation of a consonant is how the vocal cords vibrate during the articulation. When the vocal cords vibrate fully, the consonant is called voiced; when they do not vibrate at all, it's voiceless.
- The voice onset time (VOT) indicates the timing of the phonation. Aspiration is a feature of VOT.
- The airstream mechanism is how the air moving through the vocal tract is powered. Most languages have exclusively pulmonic egressive consonants, which use the lungs and diaphragm, but ejectives, clicks, and implosives use different mechanisms.
- The length is how long the obstruction of a consonant lasts. This feature is not distinctive in English, but various languages such as Italian, Japanese and Finnish have two length levels, "single" and "geminate". Estonian and some Sami languages have three lengths on the phonetic level: short, geminate, and long geminate.
- The articulatory force is how much muscular energy is involved. This has been proposed many times, but no distinction relying exclusively on force has ever been demonstrated. All English consonants can be classified by a combination of these features, such as "voiceless alveolar stop consonant" [t]. In this case the airstream mechanism is omitted. Some pairs of consonants like p::b, t::d are sometimes called fortis and lenis, but this is a phonological rather than phonetic distinction.

Consonant as a symbol

The word consonant is also used to refer to a letter of an alphabet that denotes a consonant sound. Consonant letters in the English alphabet are B, C, D, F, G, H, J, K, L, M, N, P, Q, R, S, T, V, W, X, Z, and usually Y: The letter Y stands for the consonant [j] in "yoke" but for the vowel in "myth", for example.

See also


- Table of consonants
- List of consonants
- List of phonetics topics

Links


- [http://www.chass.utoronto.ca/~danhall/phonetics/sammy.html interactive manner and place of articulation]
- [http://www.oneletterwords.com Dictionary of All-Consonant Words]: a free online dictionary with over 1,000 words with no vowels and examples of usage from literature.
- ko:닿소리 ja:子音

Semivowel

Semivowels (also called semiconsonants or glides, though these are now dispreferred) are non-syllabic vowels that form diphthongs with syllabic vowels. They may be contrasted with approximants, which are similar to but closer than vowels or semivowels, and behave as consonants. They are normally written by adding the IPA non-syllabic mark to a vowel symbol, but often for simplicity the vowel alone is written. For example, the English word wow may be transcribed as (or abbreviated to ). Even though the and the are both similar to the vowel , this transcription indicates that the former is considered to be a consonant, while the latter forms a diphthong with the preceding vowel. The approximant is more constricted and therefore more consonant-like than the semivowel . (Using for the diphthong rather than the that one might expect is a minor phonetic point. See diphthong for details.) Because they are so similar, the terms semivowel and approximant are often used interchangeably. In such usage, semivowels are defined as those approximants that correspond phonetically to specific close vowels. These are [j] corresponding to [i], [w] for [u], for [y], and for . (See approximant for details.) However, languages such as and have additional semivowels that correspond to mid vowels such as and , which other than being non-syllabic are not at all consonant like.

Examples


- English eye
- English cow
- ui "onion"
- Samoan ’ai "probably"
- Samoan ’ae "but"
- Samoan ’auro "gold"
- Samoan ao "a cloud"

See also


- List of phonetics topics Category:Consonants ja:半母音 ko:반모음

Approximant

Approximants are speech sounds that could be regarded as intermediate between vowels and typical consonants. In the articulation of approximants, articulatory organs produce a narrowing of the vocal tract, but leave enough space for air to flow without much audible turbulence. Approximants are therefore more open than fricatives. This class of sounds includes lateral approximants like , as in lip, and approximants like and in yes and well which correspond closely to vowels and semivowels. Palatal approximants correspond to front vowels, velar approximants to back vowels, and labialized approximants to rounded vowels. They are typically briefer and closer than the corresponding vowels. When emphasized, approximants may be slightly fricated (that is, the airstream may become slightly turbulent), which is reminiscent of fricatives. Examples are the y of English yes! (especially when lengthened) and the "weak" allophones of Spanish b, d, g, which are often transcribed as fricatives (often due perhaps to a lack of dedicated approximant symbols). However, such frication is generally slight and intermittant, unlike the strong turbulence of fricative consonants. This confusion is also common with voiceless approximants, which necessarily have a certain amount of fricative-like noise. For example, the voiceless labialized velar approximant has traditionally been called a fricative. Tibetan has a voiceless lateral approximant, , and Welsh has a voiceless lateral fricative , but the distinction is not always clear from descriptions of these languages. For places of articulation further back in the mouth, languages do not contrast voiced fricatives and approximants. Therefore the IPA allows the symbols for the voiced fricatives to double for the central approximants, with or without a lowering diacritic. Occasionally the glottal "fricatives" are called approximants, since [h] typically has no more frication than voiceless approximants, but they are often phonations of the glottis without any accompanying manner or place of articulation. Central approximants
- bilabial approximant (usually written )
- labiodental approximant
- dental approximant (usually written )
- alveolar approximant (a consonantal )
- retroflex approximant
- palatal approximant (a consonantal )
- velar approximant (a consonantal )
- uvular approximant (usually written )
- pharyngeal approximant (usually written )
- epiglottal approximant (usually written ) Lateral approximants
- voiced alveolar lateral approximant
- voiceless alveolar lateral approximant
- retroflex lateral approximant
- palatal lateral approximant
- velar lateral approximant Coarticulated approximants with dedicated IPA symbols
- voiced labialized velar approximant (a consonantal )
- voiceless labialized velar approximant
- labialized palatal approximant (a consonantal )
- velarized alveolar lateral approximant Although many languages have central vowels which lie between back/velar and front/palatal , no language is known to have corresponding approximants.

See also


- List of phonetics topics
- Semivowel Category:Consonants ko:접근음 ja:接近音

Syllable nucleus

In phonetics and phonology, the nucleus (sometimes called peak) is the central part of the syllable, mostly commonly a vowel. In addition to a nucleus, a syllable may begin with an onset and end with a coda, but the only part of a syllable that is mandatory is the nucleus. The nucleus and coda form the rime of the syllable. Here are some examples of nuclei:
- cat -
- bed -
- tore -
- ode -
- eat - (the "ea" part)
- tea - (the "ea" part)
- see - (the "ee" part)
- fiddle - and
- bitten - and (The is only for speakers who "swallow" the sound) Diphthongs and triphthongs can also serve as the nucleus. Syllables with short vowels as nuclei are sometimes referred to as "light syllables" while syllables with long vowels, diphthongs, or triphthongs as nuclei are referred to as "heavy syllables"; see syllable weight for more discussion. Sonorant consonants such as liquids (such as and ) and nasals (such as and ) can serve as the nucleus if there is no vowel. The nuclei of the last syllable of the final two examples above are examples of such sonorant nuclei. Some languages allow other sounds such as stops to become nuclei. Category:Phonology Category:Phonotactics

Syllable onset

In phonetics and phonology, a syllable onset is the part of a syllable that precedes the syllable nucleus. In the study of Chinese languages, onsets are better known as initials or in Chinese, shengmu (PY: shēngmǔ, TC: 聲母, SC: 声母).

Syllable structure

The segmental structure of a syllable begins with an optional onset, followed by a compulsory rime or final (yunmu). :syllable: C1(C2)V1(V2)(C3)(C4) = onset: C1(C2) + rime: V1(V2)(C3)(C4) :syllable: V1(V2)(C3)(C4) = onset: Ø (null) + rime: V1(V2)(C3)(C4) :(C = consonant, V = vowel, optional components are in parentheses.) Depending on the phonotactics of a language, the onset can consist of a single consonant or a consonant cluster. If a syllable begins with a vowel or another syllabic sonorant, then the syllable is said to have no onset, or a null onset. In Chinese language studies, the terms null initial and zero initial are used as well.

Chinese language studies

The onset or initial was first called shēngniǔ (TC: 聲紐, SC: 声纽), or simply shēng or niǔ, in traditional phonological studies since the Jìn Dynasty. For each group of characters pronounced with the same initial consonant, one was picked to name the initial. One character was also picked from the group without an initial consonant, which was the beginning of the concept of the null initial. Category:Phonology Category:Phonotactics ja:声母

Syllable coda

In phonology, a syllable coda comprises the consonant sounds of a syllable that follow the nucleus, which is usually a vowel. The combination of a nucleus and a coda is called a rime. A coda is not required in syllables. Some languages' phonotactics, like that of Japanese, limit syllable codas to a small group of single consonants, whereas others, like English can have any consonant or even clusters of consonants in syllable codas. Here are some single-syllable words with codas: (the codas are specified in the International Phonetic Alphabet)
- an: coda =
- cup: coda =
- tall: coda =
- milk: coda =
- tints: coda =
- fifths: coda =
- sixths: coda = The following single-syllable words end in a nucleus and do not have a coda:
- glue
- pie
- though
- boy Category:Phonology Category:Phonotactics

English language

English is a West Germanic language that is spoken in the United Kingdom, United States, Canada, Australia, New Zealand, Ireland, South Africa, and many other countries. English is now the third-most spoken native language worldwide (after Chinese and Hindi), with some 380 million speakers. It has lingua franca status in many parts of the world, due to the military, economic, scientific, political and cultural influence of the British Empire in the 18th and 19th centuries and that of the United States from the 20th century to the present. Through the global influence of native English speakers in cinema, airlines, broadcasting, science, and the Internet in recent decades, English is now the most widely learned second language in the world. Many students worldwide are required to learn some English, and a working knowledge of English is required in many fields and occupations.

History

English is a West Germanic language that originated from the Old Saxon language brought to Britain by Germanic settlers from various parts of northwest Germany. The original Old English language was subsequently influenced by two successive waves of invasion. The first was by speakers of languages in the Scandinavian branch of the Germanic family, who colonised parts of Britain in the 8th and 9th centuries. The second wave was of the Normans in the 11th century, who spoke a variety of French. These two invasions caused English to become "creolised" to some degree (though it was never a full creole in the linguistic sense of the word); creolisation arises from the cohabitation of speakers of different languages, who develop a hybrid tongue for basic communication. Cohabitation with the Scandinavians resulted in a significant grammatical simplification and lexical enrichment of the Anglo-Friesian core of English; the later Norman occupation led to the grafting onto that Germanic core a more elaborate layer of words from the Romance branch of European languages; this new layer entered English through use in the courts and government. Thus, English developed into a "borrowing" language of considerable suppleness and huge vocabulary. According to the Anglo-Saxon Chronicle, around the year 449, Vortigern, King of the British Isles, invited the "Angle kin" (Angles led by Hengest and Horsa) to help him against the Picts. In return, the Angles were granted lands in the south-east. Further aid was sought, and in response "came men of Ald Seaxum of Anglum of Iotum" (Saxons, Angles, and Jutes). The Chronicle talks of a subsequent influx of settlers who eventually established seven kingdoms, known as the heptarchy. Modern scholarship considers most of this story to be legendary and politically motivated. These Germanic invaders dominated the original Celtic-speaking inhabitants, whose languages survived largely in Scotland, Wales, Cornwall, and Ireland. The dialects spoken by the invaders formed what would be called Old English, which resembled some coastal dialects in what are now the Netherlands and north-west Germany. Later, it was strongly influenced by the North Germanic language Norse, spoken by the Vikings who settled mainly in the north-east (see Jorvik). The new and the earlier settlers spoke languages from different branches of the Germanic family; many of their lexical roots were the same or similar, although their grammars were more distant, including the prefixes, suffixes and inflections of many of their words. The Germanic language of these Old English inhabitants of Britain would be partly creolised by the contact with Norse invaders. This resulted in a stripping away of much of the grammar of Old English, including gender and case, with the notable exception of the pronouns; thus, the language became simpler and plainer. The most famous work from the Old English period is the epic poem "Beowulf", by an unknown poet. For the 300 years following the Norman Conquest in 1066, the Norman kings and the high nobility spoke only a variety of French. A large number of Norman words were assimilated into Old English, with some words doubling for Old English words (for instance, ox/beef, sheep/mutton). The Norman influence reinforced the continual evolution of the language over the following centuries, resulting in what is now referred to as Middle English. Among the changes was a broadening in the use of a unique aspect of English grammar, the "continuous" tenses, with the suffix "-ing". During the 15th century, Middle English was transformed by the Great Vowel Shift, the spread of a standardised London-based dialect in government and administration, and the standardising effect of printing. Modern English can be traced back to around the time of William Shakespeare. The most well-known work from the Middle English period is Geoffrey Chaucer's The Canterbury Tales.

Classification and related languages

The English language belongs to the western subbranch of the Germanic branch of the Indo-European family of languages. The closest living relative of English is Scots (Lallans), a West Germanic language spoken mostly in Scotland and parts of Northern Ireland. Like English, Scots is a direct descendant of Old English, also known as Anglo-Saxon. After Scots, the next closest relative is Frisian—spoken in the Netherlands and Germany. Other less closely related living languages include Dutch, Afrikaans, German, Plattdüütsch and the Scandinavian languages. Many French words are also intelligible to an English speaker (pronunciations are not always identical, of course), because English absorbed a tremendous amount of vocabulary from French, via the Norman language after the Norman conquest and directly from French in further centuries; as a result, a substantial share of English vocabulary is quite close to the French, with some minor spelling differences (word endings, use of old French spellings, etc.), as well as occasional differences in meaning.

Geographic distribution

Norman conquest English is the second or third most widely spoken language in the world today; a total of 600–700 million people use English regularly. About 377 million people use English as their mother tongue, and an equal number of people use it as their second or foreign language. It is used widely in either the public or private sphere in more than 100 countries all over the world. In addition, the language has occupied a primary place in international academic and business communities. The current status of the English language compares with that of Latin in the past. English is the primary language in Antigua and Barbuda, Australia (Australian English), the Bahamas, Barbados (Caribbean English), Bermuda, Belize, Canada (Canadian English), the Cayman Islands, Dominica, the Falkland Islands, Gibraltar, Grenada, Guernsey, Guyana, Ireland (Irish English), Isle of Man, Jamaica (Jamaican English), Jersey, Montserrat, New Zealand (New Zealand English), Saint Helena, Saint Lucia, Saint Kitts and Nevis, Saint Vincent and the Grenadines, Trinidad and Tobago, the Turks and Caicos Islands, the United Kingdom (various forms of British English), the U.S. Virgin Islands, and the United States. English is also an important minority language of South Africa (South African English), and in several other former colonies and current dependent territories of the United Kingdom and the United States, for example Guam and Mauritius. In Hong Kong, English is an official language and is widely used in business activities. It is taught from kindergarten, and is the medium of instruction for a few primary schools, many secondary schools and all universities. Substantial numbers of students acquire native-speaker level. It is so widely used and spoken that it is inadequate to say it is merely a second or foreign language, though there are still many people in Hong Kong with poor or no command of English. The majority of English native speakers (67 to 70 per cent) live in the United States. Although the U.S. federal government has no official languages, it has been given official status by 27 of the 50 state governments, most of which have declared English their sole official language. Hawaii, Louisiana, and New Mexico have also designated Hawaiian, French, and Spanish, respectively, as official languages in conjunction with English. In many other countries where English is not a major first language, it is an official language; these countries include Cameroon, Fiji, the Federated States of Micronesia, Ghana, Gambia, India, Kiribati, Lesotho, Liberia, Kenya, Namibia, Nigeria, Malta, the Marshall Islands, Pakistan, Papua New Guinea, the Philippines, Rwanda, the Solomon Islands, Samoa, Sierra Leone, Swaziland, Tanzania, Zambia and Zimbabwe. English is the most widely learned and used foreign language in the world, and as such, many linguists believe it is no longer the exclusive cultural emblem of "native English speakers", but rather a language that is absorbing aspects of cultures worldwide as it grows in use. Others believe that there are limits to how far English can go in suiting everyone for communication purposes. It is the language most often studied as a foreign language in Europe (32.6 per cent), followed by French, German, and Spanish. It is also the most studied in Japan, South Korea and in the Republic of China (Taiwan), where it is compulsory for most high school students. See English as an additional language.

English as a global language

See also: English on the Internet Because English is so widely spoken, it has been referred to as a "global language". While English is not the official language in many countries, it is the language most often taught as a second language around the world. It is also, by international treaty, the official language for aircraft/airport communication. Its widespread acceptance as a first or second language is the main indication of its global status. There are numerous arguments for and against English as a global language. On one hand, having a global language aids in communication and in pooling information (for example, in the scientific community). On the other hand, it excludes those who, for one reason or another, are not fluent. It can also marginalise populations whose first language is not the global language, and lead to a cultural hegemony of the populations speaking the global language as a first language. Most of these arguments hold for any candidate for a global language, though the last two counter-arguments do not hold for languages not belonging to any ethnic group (like Esperanto). A secondary concern with respect to the spread of global languages (English, Spanish, etc.) is the resulting disappearance of minority languages, often along with the cultures and religions that are primarily transmitted in those languages. English has been implicated in a number of historical and ongoing so-called "language deaths" and "linguicides" around the world, many of which have also led to the loss of cultural heritage. In the Americas, Native American nations have been most strongly affected by this phenomenon.

Dialects and regional variants

The expansiveness of the British and the Americans has spread English throughout the globe. Because of its global spread, it has bred a variety of English dialects and English-based creoles and pidgins. The major varieties of English in most cases contain several subvarieties, such as Cockney within British English, Newfoundland English within Canadian English, and African American Vernacular English ("Ebonics") within American English. English is considered a pluricentric language, with no variety being clearly considered the only standard. Some consider Scots as an English dialect. Pronunciation, grammar and lexis differ, sometimes substantially. The Scottish dialect retains many German aspects including guttural pronunciations. Because of English's wide use as a second language, English speakers can have many different accents, which may identify the speaker's native dialect or language. For more distinctive characteristics of regional accents, see Regional accents of English speakers. For more distinctive characteristics of regional dialects, see List of dialects of the English language. Many countries around the world have blended English words and phrases into their everyday speech and refer to the result by a colloquial name that implies its bilingual origins, which parallels the English language's own addiction to loan words and borrowings. Named examples of these ad-hoc constructions, distinct from pidgin and creole languages, include Engrish, Wasei-eigo, Franglais and Spanglish. (See List of dialects of the English language for a complete list.) Europanto combines many languages but has an English core.

Constructed variants of English


- Basic English is simplified for easy international use. It is used by some aircraft manufacturers and other international businesses to write manuals and communicate. Some English schools in the Far East teach it as an initial practical subset of English.
- Special English is a simplified version of English used by the Voice of America. It uses a vocabulary of 1500 words.
- English reform is an attempt to improve collectively upon the English language.
- Seaspeak and the related Airspeak and Policespeak, all based on restricted vocabularies, were designed by Edward Johnson in the 1980s to aid international co-operation and communication in specific areas.
- European English is a new variant of the English language created to become the common language in Europe.

Sounds

Vowels

Notes: It is the vowels that differ most from region to region. Where symbols appear in pairs, the first corresponds to the sounds used in North American English, the second corresponds to English spoken elsewhere. #North American English lacks this sound; words with this sound are pronounced with or . According to The Canadian Oxford Dictionary (1998), this sound is present in Standard Canadian English. #Many dialects of North American English do not have this vowel. See cot-caught merger. #The North American variation of this sound is a rhotic vowel. #Many speakers of North American English do not distinguish between these two unstressed vowels. For them, roses and Rosa's are pronounced the same, and the symbol usually used is schwa . #This sound is often transcribed with or with . #The letter U can represent either /u/ or the iotated vowel /ju/.

Consonants

This is the English Consonantal System using symbols from the International Phonetic Alphabet (IPA). #The velar nasal is a non-phonemic allophone of /n/ in some northerly British accents, appearing only before /g/. In all other dialects it is a separate phoneme, although it only occurs in syllable codas. #The alveolar flap is an allophone of /t/ and /d/ in unstressed syllables in North American English and increasingly in Australian English. This is the sound of "tt" or "dd" in the words latter and ladder, which are homophones in North American English. This is the same sound represented by single "r" in some varieties of Spanish. #In some dialects, such as Cockney, the interdentals /θ/ and /ð/ are usually merged with /f/ and /v/, and in others, like African American Vernacular English, /ð/ is merged with /d/. In some Irish varieties, /θ/ and /ð/ become the corresponding dental plosives, which then contrast with the usual alveolar plosives. #The sounds are labialised in some dialects. Labialisation is never contrastive in initial position and therefore is sometimes not transcribed. #The voiceless velar fricative /x/ is used only by Scottish or Welsh speakers of English for Scots/Gaelic words such as loch or by some speakers for loanwords from German and Hebrew like Bach or Chanukah /xanuka/, or in some dialects such as Scouse (Liverpool) where the affricate [kx] is used instead of /k/ in words such as docker . Most native speakers have a great deal of trouble pronouncing it correctly when learning a foreign language. Most speakers use the sounds [k] and [h] instead. #Voiceless w is found in Scottish, Irish, some upper-class British, some eastern United States, and New Zealand accents. In all other dialects it is merged with /w/.

Voicing and Aspiration

Voicing and aspiration of stop consonants in English depend on dialect and context, but a few general rules can be given:
- Voiceless plosives and affricates (//, //, //, and //) are aspirated when they are word-initial or begin a stressed syllable and are not part of a consonant cluster—compare pin [] and spin [].
  - In some dialects, aspiration extends to unstressed syllables as well.
  - In other dialects, such as Indian English, most or all voiceless stops may remain unaspirated.
- Word-initial voiced plosives may be devoiced in some dialects.
- Word-terminal voiceless plosives may be unreleased or accompanied by a glottal stop in some dialects (e.g. many varieties of American English)—examples: tap [], sack [].
- Word-terminal voiced plosives may be devoiced in some dialects (e.g. some varieties of American English)—examples: sad [], bag []. In other dialects they are fully voiced in final position, but only partially voiced in initial position.

See also

International Phonetic Alphabet for English

Intonation

Tone groups

English is an Intonation language. This means that the pitch of the voice is used syntactically, for example, to convey surprise and irony, or to change a statement into a question. In English, intonation patterns are on groups of words, which are called tone groups, tone units, intonation groups or sense groups. Tone groups are said on a single breath and, as a consequence, are of limited length, more often being on average five words long or lasting roughly two seconds. The structure of tone groups can have a crucial impact on the meaning of what is said. For example: :- :- :-

Characteristics of intonation

Each tone group can be subdivided into syllables, which can either be stressed (strong) or unstressed (weak). There is always a strong syllable, which is stressed more than the others. This is called the nuclear syllable. For example: :That | was | the | best | thing | you | could | have | done! Here, all syllables are unstressed, except the syllables/words "best" and "done", which are stressed. "Best" is stressed harder and, therefore, is the nuclear syllable. The nuclear syllable carries the main point the speaker wishes to make. For example: :John had stolen that money. (... not I) :John had stolen that money. (... you said he hadn't) :John had stolen that money. (... he wasn't given it) :John had stolen that money. (... not this money) :John had stolen that money. (... not something else) The nuclear syllable is spoken louder than all the others and has a characteristic change of pitch. The changes of pitch most commonly encountered in English are the rising pitch and the falling pitch, although the fall-rising pitch and/or the rise-falling pitch are sometimes used. For example: :When do you want to be paid? :Nów? (rising pitch. In this case, it denotes a question: can I be paid now?) :Nòw (falling pitch. In this case, it denotes a statement: I choose to be paid now)

Grammar

English grammar is based on its Germanic roots, though some scholars during the 1700s and 1800s attempted to impose Latin grammar upon it, with little success. English is just slightly inflected, much less so than most Indo-European languages. It compensates for this by placing more grammatical information in auxiliary words and word order. Unlike most other Indo-European languages, modern nominal groups (nouns) in English do not carry gender, although an archaic form of gender is technically assigned as either masculine, feminine, neuter or common. Engendered nouns are only apparent in special cases, such as "I loved that ship as if she were my own", where the noun "ship" is referred to by its feminine pronoun.

Vocabulary

Almost without exception, Germanic words (which include all the basics such as pronouns and conjunctions) are shorter and more informal. Latinate words are often regarded as more elegant or educated. However, the excessive use of Latinate words is often mistaken for either pretentiousness (as in the stereotypical policeman's talk of "apprehending the suspect") or obfuscation (as in a military document which says "neutralise" when it means "kill"). George Orwell's essay Politics and the English Language gives a thorough treatment of this feature of English. An English speaker is often able to choose between Germanic and Latinate synonyms: "come" or "arrive"; "sight" or "vision"; "freedom" or "liberty"—and sometimes also between a word inherited through French and a borrowing direct from Latin of the same root word: "oversee", "survey" or "supervise". The richness of the language is that such synonyms have slightly different meanings, enabling the language to be used in a very flexible way to express fine variations or shades of thought. List of Germanic and Latinate equivalents In everyday speech the majority of words will normally be Germanic. If a speaker wishes to make a forceful point in an argument in a very blunt way, Germanic words will usually be chosen. A majority of Latinate words (or at least a majority of content words) will normally be used in more formal speech and writing, such as a courtroom or an encyclopedia article. English is noted for the vast size of its active vocabulary and its fluidity. English easily accepts technical terms into common usage and imports new words which often come into common usage. In addition, slang provides new meanings for old words. In fact this fluidity is so pronounced that a distinction often needs to be made between formal forms of English and contemporary usage. See also sociolinguistics.

Number of words in English

As the General Explanations at the beginning of the Oxford English Dictionary state: :The Vocabulary of a widely diffused and highly cultivated living language is not a fixed quantity circumscribed by definite limits.... there is absolutely no defining line in any direction: the circle of the English language has a well-defined centre but no discernible circumference. The vocabulary of English is undoubtedly vast, but assigning a specific number to its size is more a matter of definition than of calculation. Unlike other languages, there is no Academy to define officially accepted words. Neologisms are coined regularly in medicine, science and technology—some enter wide usage; others remain restricted to small circles. Foreign words used in immigrant communities often make their way into wider English usage. Archaic, dialectal, and regional words might be considered "English" or not. The Oxford English Dictionary (2nd edition) includes over 500,000 headwords, following a rather inclusive policy: :It embraces not only the standard language of literature and conversation, whether current at the moment, or obsolete, or archaic, but also the main technical vocabulary, and a large measure of dialectal usage and slang (Supplement to the OED, 1933). The difficulty of defining the number of words is compounded by the emergence of new versions of English, such as Asian English.

Word origins

One of the consequences of the French influence is that the vocabulary of English is, to a certain extent, divided between those words which are Germanic (mostly Old English) and those which are "Latinate" (Latin-derived, mostly from Norman French but some borrowed directly from Latin). A computerised survey of about 80,000 words in the old Shorter Oxford Dictionary (3rd ed.) was published in Ordered Profusion by Thomas Finkenstaedt and Dieter Wolff (1973) which estimated the origin of English words as follows:
- French, including Old French and early Anglo-French: 28.3%
- Latin, including modern scientific and technical Latin: 28.24%
- Old and Middle English, Old Norse, and Dutch: 25%
- Greek: 5.32%
- No etymology given: 4.03%
- Derived from proper names: 3.28%
- All other languages contributed less than 1% James D. Nicoll made the oft-quoted observation: "The problem with defending the purity of the English language is that English is about as pure as a cribhouse whore. We don't just borrow words; on occasion, English has pursued other languages down alleyways to beat them unconscious and riffle their pockets for new vocabulary." [http://groups.google.com/groups?selm=1990May15.155309.8892%40watdragon.waterloo.edu&oe=UTF-8&output=gplain]

Writing system

English is written using the Latin alphabet. The spelling system or orthography of English is historical, not phonological. The spelling of words often diverges considerably from how they are spoken, and English spelling is often considered to be one of the most difficult to learn of any language that uses an alphabet. See English orthography.

Basic sound-letter correspondence

Written accents

English includes some words which can be written with accent marks. These words have mostly been imported from other languages, usually French. But it is increasingly rare for writers of English to actually use the accent marks for common words, even in very formal writing, to the point where actually writing the accent may be interpreted as a sign of pretension—though this view is counterbalanced by the view that fine typography should preserve accents, especially where it makes a distinction in pronunciation (compare façade vs. facade which would rhyme with cascade). The strongest tendency to retain the accent is in words that are atypical of English morphology and therefore still perceived as slightly foreign. For example, café has a pronounced final e, which would be silent by the normal English pronunciation rules. Some examples: ångström, appliqué, attaché, blasé, bric-à-brac, café, cliché, crème, crêpe, façade, fiancé(e), flambé, naïve, né(e), papier-mâché, passé, piñata, protégé, raison d'être, résumé, risqué, über-, vis-à-vis, voilà. For a more complete list, see List of English words with diacritics. Some words such as rôle and hôtel were first seen with accents when they were borrowed into English, but now the accent is almost never used. The words were considered very French borrowings when first used in English, even accused by some of being foreign phrases used where English alternatives would suffice, but today their French origin is largely forgotten. The accent on "élite" has disappeared from most publications today, but Time magazine still uses it. For some words such as "soupçon" however, the only spelling found in English dictionaries (the OED and others) uses the diacritic. Italics, with appropriate accents, are generally applied to foreign terms that are uncommonly used in or have not been assimilated into English: for example, adiós, coup d'état, crème brûlée, pièce de résistance, raison d'être, über (übermensch), vis-à-vis. It is also possible to use a diaeresis to indicate a syllable break, but again this is often left out or a hyphen used instead. Examples: coöperate (or co-operate), daïs, naïve, noël, reëlect (or re-elect). One publication that still uses a diaeresis to indicate a syllable break is the New Yorker magazine. Written accents are also used occasionally in poetry and scripts for dramatic performances to indicate that a certain normally unstressed syllable in a word should be stressed for dramatic effect, or to keep with the meter of the poetry. This use is frequently seen in archaic and pseudoarchaic writings with the "-ed" suffix, to indicate that the "e" should be fully pronounced, as with cursèd. In certain older texts (typically in Commonwealth English), the use of ligatures is common in words such as archæology, œsophagus, and encyclopædia. Such words have Latin or Greek origin. Nowadays, the ligatures have been generally replaced in Commonwealth English by the separated letters "ae" and "oe" ("archaeology", "oesophagus") and in American English by "e" ("archeology", "esophagus"). However, the spellings "oeconomy" and "oecology" are now generally replaced by "economy" and "ecology" in Commonwealth English, making these spellings the same as in American English.

See also


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