In English this vowel is most typically transcribed with the symbol ⟨ʌ⟩, i.e. as if it were open-mid back. That pronunciation is still found in some dialects, but many speakers use a central vowel like [ɐ] or [ɜ]. To avoid the trap–strut merger, Standard Southern British English is moving away from the [ɐ] quality towards [ʌ] found in RP spoken in the first half of the 20th century (e.g. in Daniel Jones's speech).[2]
Much like ⟨ə⟩, ⟨ɐ⟩ is a versatile symbol that is not defined for roundedness[3] and that can be used for vowels that are near-open central,[4] near-open near-front,[5] near-open near-back,[6] open-mid central,[7] open central[8] or an (often unstressed) vowel with variable height, backness and/or roundedness that is produced in that general area.[9] For open central unrounded vowels transcribed with ⟨ɐ⟩, see open central unrounded vowel.
The near-open central unrounded vowel is sometimes the only open vowel in a language[10] and then is typically transcribed with ⟨a⟩.
Features
Its vowel height is near-open, also known as near-low, which means the tongue is positioned similarly to an open vowel, but is slightly more constricted – that is, the tongue is positioned similarly to a low vowel, but slightly higher.
It is undefined for roundedness, which means that it can be either rounded or unrounded. In practice however, the unrounded variant is more common.
Occurrence
In the following list, ⟨ɐ⟩ is assumed to be unrounded. The rounded variant (listenⓘ) is transcribed as ⟨ɐ̹⟩. Some instances of the latter may actually be fully open.
The exact height, backness and roundedness is somewhere between [ä] and [ɔ], depending on the environment. Sometimes, an opening diphthong of the [əɐ̯]-type is used instead.[9] In Northern Standard German, the short [ä] is raised to [ɐ] when unstressed, rendering Opa 'grandpa' homophonous with Oper.[29] See Standard German phonology
Rounded; contrasts with the open-mid [ɞː] in words with Accent 2 ([ɐ̹ː] itself is always toneless).[35] It may be transcribed in IPA with ⟨ɶː⟩, as it is a phonological front vowel.
^Bhardwaj, Mangat Rai (2016). "Chapter 4: Tone and Related Phenomena in Panjabi". Panjabi: A Comprehensive Grammar (in English and Punjabi). Abingdon: Routledge. p. 87. ISBN978-1-315-76080-3.
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Barbosa, Plínio A.; Albano, Eleonora C. (2004), "Brazilian Portuguese", Journal of the International Phonetic Association, 34 (2): 227–232, doi:10.1017/S0025100304001756
Chirkova, Katia; Chen, Yiya (2013), "Xumi, Part 1: Lower Xumi, the Variety of the Lower and Middle Reaches of the Shuiluo River", Journal of the International Phonetic Association, 43 (3): 363–379, doi:10.1017/S0025100313000157
Chirkova, Katia; Chen, Yiya; Kocjančič Antolík, Tanja (2013), "Xumi, Part 2: Upper Xumi, the Variety of the Upper Reaches of the Shuiluo River", Journal of the International Phonetic Association, 43 (3): 381–396, doi:10.1017/S0025100313000169
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