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The term "allophone" was coined by Benjamin Lee Whorf circa 1929. In doing so, he is thought to have placed a cornerstone in consolidating early phoneme theory. [4] The term was popularized by George L. Trager and Bernard Bloch in a 1941 paper on English phonology [5] and went on to become part of standard usage within the American structuralist tradition.
Simplified chart / decision tree to determine whether two sounds which occur in the words of a language are allophones of the same phoneme, separate phonemes, or in free variation. For explanations of terms and procedures, see articles Allophone , Complementary distribution , Minimal pair , Free variation , and Phoneme .
The following is the chart of the International Phonetic Alphabet, a standardized system of phonetic symbols devised and maintained by the International Phonetic Association.
[note 5] The alphabet is designed for transcribing sounds (phones), not phonemes , though it is used for phonemic transcription as well. A few letters that did not indicate specific sounds have been retired – ˇ , once used for the "compound" tone of Swedish and Norwegian, and ƞ , once used for the moraic nasal of Japanese – though one ...
Such spoken variations of a single phoneme are known by linguists as allophones. Linguists use slashes in the IPA to transcribe phonemes but square brackets to transcribe more precise pronunciation details, including allophones; they describe this basic distinction as phonemic versus phonetic.
In most dialects, the fortis stops and affricate /p, t, tʃ, k/ have various different allophones, and are distinguished from the lenis stops and affricate /b, d, dʒ, ɡ/ by several phonetic features. [21] The allophones of the fortes /p, t, tʃ, k/ include: aspirated [pʰ, tʰ, kʰ] when they occur in the onset of a stressed syllable, as in ...
Alternations provide linguists with data that allow them to determine the allophones and allomorphs of a language's phonemes and morphemes and to develop analyses determining the distribution of those allophones and allomorphs. The term "sound change" refers to diachronic changes, which occur in a language's sound system.
At the word boundary, a "plus juncture" /+/ has been posited and said to be the factor conditioning allophones to allow distinctivity: [7] in this example, the phrase "great ape" has an /eɪ/ diphthong shortened by pre-fortis clipping and, since it is not syllable-initial, a /t/ with little aspiration (variously [t˭], [ɾ], [ʔt], , etc ...