Eterrinigolde

20/12/2021

20/12/2021

Parentheses are used for indistinguishable[17] or unidentified utterances. They are also seen for silent articulation (mouthing),[19] where the expected phonetic transcription is derived from lip-reading, and with periods to indicate silent pauses, for example (…) or (2 sec). The latter usage is made official in the extIPA, with unidentified segments circled.[20]

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Slashes[note 6] are used for abstract phonemic notation,[17] which note only features that are distinctive in the language, without any extraneous detail. For example, while the 'p' sounds of English pin and spin are pronounced differently (and this difference would be meaningful in some languages), the difference is not meaningful in English. Thus phonemically the words are usually analyzed as /ˈpɪn/ and /ˈspɪn/, with the same phoneme /p/. To capture the difference between them (the allophones of /p/), they can be transcribed phonetically as [pʰɪn] and [spɪn]. Phonemic notation commonly uses IPA symbols that are rather close to the default pronunciation of a phoneme, but for legibility or other reasons can use symbols for something that diverges from their designated values, such as /c, ɟ/ for affricates, as found in the Handbook, or /r/ (which according to the IPA is a trill) for English r.

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Beyond the letters themselves, there are a variety of secondary symbols which aid in transcription. Diacritic marks can be combined with IPA letters to transcribe modified phonetic values or secondary articulations. There are also special symbols for suprasegmental features such as stress and tone that are often employed.

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This inventory was extended by using small-capital and cursive forms, diacritics and rotation. There are also several symbols derived or taken from the Greek alphabet, though the sound values may differ. For example, ⟨ʋ⟩ is a vowel in Greek, but an only indirectly related consonant in the IPA. For most of these, subtly different glyph shapes have been devised for the IPA, namely ⟨ɑ⟩, ⟨ꞵ⟩, ⟨ɣ⟩, ⟨ɛ⟩, ⟨ɸ⟩, ⟨ꭓ⟩, and ⟨ʋ⟩, which are encoded in Unicode separately from their parent Greek letters, though one of them – ⟨θ⟩ – is not, while both Latin ⟨ꞵ⟩, ⟨ꭓ⟩ and Greek ⟨β⟩, ⟨χ⟩ are in common use.[15]

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Several nasal consonants are based on the form ⟨n⟩: ⟨n ɲ ɳ ŋ⟩. ⟨ɲ⟩ and ⟨ŋ⟩ derive from ligatures of gn and ng, and ⟨ɱ⟩ is an ad hoc imitation of ⟨ŋ⟩.
Letters turned 180 degrees, such as ⟨ɐ ɔ ə ɟ ɓ ɥ ɾ ɯ ɹ ʇ ʊ ʌ ʍ ʎ⟩ (from ⟨a c e f ɡ h ᴊ m r t ω v w y⟩),[14] when either the original letter (e.g., ⟨ɐ ə ɹ ʇ ʍ⟩) or the turned one (e.g., ⟨ɔ ɟ ɓ ɥ ɾ ɯ ʌ ʎ⟩) is reminiscent of the target sound. This was easily done in the era of mechanical typesetting, and had the advantage of not requiring the casting of special type for IPA symbols, much as the same type had often been used for b and q, d and p, n and u, 6 and 9 to reduce costs.
The small capital letters ⟨ɢ ʜ ʟ ɴ ʀ ʁ⟩ are more guttural than their base letters. ⟨ʙ⟩ is an exception.