Voice Quality Symbols (VoQS) are a set of phonetic symbols used to transcribe disordered speech for what in speech pathology is known as "voice quality". This phrase is usually synonymous with phonation in phonetics, but in speech pathology encompasses secondary articulation as well.
VoQS symbols are normally combined with curly braces that span a section of speech, just as with prosody notation in the extended IPA (extIPA). In fact, they started off as part of extIPA before being split off. [1] The symbols may be modified with a digit to convey relative degree of the quality. For example, ⟨V!⟩ is used for harsh voice, and {3V!...3V!} indicates that the intervening speech is very harsh. ⟨L̞⟩ indicates a lowered larynx. Thus, {L̞1V!...1V!L̞} indicates that the intervening speech is less harsh with a lowered larynx.
VoQS use mostly IPA or extended IPA diacritics on capital letters for the element being modified: V for 'voice'/articulation, L for 'larynx', and J for 'jaw'. Degree is marked 1 for slight, 2 for moderate, and 3 for extreme.
The following combinations of letters and diacritics are used. [2] They indicate an airstream mechanism, phonation or secondary articulation across a stretch of speech. For example, 'palatalized voice' indicates palatalization of all segments of speech spanned by the braces.
Several of these symbols may be profitably used as part of single speech sounds, in addition to indicating voice qualities across spans of speech. For example, [ↀ͡r̪͆ː] is blowing a raspberry. [ɬ↓ʔ] is the l* sound in Damin while [{↓...↓}] is a string of ingressive speech.
The airstream mechanism is the process for generating the flow of air required for speech.
The four primary phonation types, other than voiceless, each receive a distinct letter:
Modifications are made with diacritics. The terms "whispery voice" and "breathy voice" follow Catford (1977) and differ from the vocabulary of the IPA, with VoQS "whispery voice" being equivalent to IPA "breathy voice" / "murmur". The notations {Ṿ} and {V̤} are therefore often confused, and {V̤} should perhaps be used for VoQS "whispery voice" with e.g. {Vʱ} for VoQS "breathy voice". [3]
These settings involve secondary articulation, usually in addition to any articulation that would be expected for non-pathological speech. They are called voices because they affect the sound quality of the utterance (that is, the individual's human voice), though this usage contradicts the IPA use of the word "voice" for voicing. For illustration here, diacritics are combined with the letter 'V' for modal voice, as that is the default assumption. (They could also be combined with F, W, C, etc.)
Combinations of symbols are also used, such as {Ṿ̃} for nasal whispery voice, [5] {WF̰} for whispery creaky falsetto, [3] or {V͋‼} for ventricular phonation with nasal lisp. [6] If the number of diacritics on a letter becomes excessive, the notation may be broken up. For example, {Ṿ̰̃ˠ} may be replaced with {VˠṼṾV̰}.
The full table of provided symbols, as it appears in the 2016 chart, [7] is as follows:
Airstream Types | |||
---|---|---|---|
ↀ buccal airstream | ↓ pulmonic ingressive speech | ||
Œ œsophageal airstream | Ю tracheo-œsophageal speech | ||
Phonation Types | |||
V modal voice | F falsetto | W whisper | C creak |
Ṿ whispery voice | V̰ creaky voice | V̤ breathy voice | V! harsh voice |
F̣ whispery falsetto | F̰ creaky falsetto | F! harsh falsetto | C! harsh creak |
Ṿ! harsh whispery voice | V̰! harsh creaky voice | ||
V̰̣ whispery creaky voice | V̰̣! harsh whispery creaky voice | ||
F̰̣ whispery creaky falsetto | F̰̣! harsh whispery creaky falsetto | ||
V͉ slack/lax voice | V͈ pressed phonation / tight voice | ||
V‼ ventricular phonation | V̬‼ diplophonia | ||
Ṿ‼ whispery ventricular phonation | V𐞀 aryepiglottic phonation | ||
ꟿ spasmodic dysphonia | И electrolarynx phonation | ||
Larynx Height | |||
L̝ raised larynx-voice | L̞ lowered larynx-voice | ||
Supralaryngeal Settings | |||
Vꟹ labialized voice (open rounded) | Vʷ labialized voice (close rounded) | ||
V͍ spread-lip voice | Vᶹ labio-dentalized voice | ||
V̺ linguo-apicalized voice | V̻ linguo-laminalized voice | ||
V˞ retroflex voice | V̪ dentalized voice | ||
V͇ alveolarized voice | V͇ʲ palato-alveolarized voice | ||
Vʲ palatalized voice | Vˠ velarized voice | ||
Vʶ uvularized voice | Vˁ pharyngealized voice | ||
V̙ˤ laryngo-pharyngealized voice | Vꟸ faucalized voice | ||
Ṽ nasalized voice | V͊ denasalized voice | ||
J̞ open-jaw voice | J̝ close-jaw voice | ||
J͔ right offset-jaw voice | J͕ left offset-jaw voice | ||
J̟ protruded-jaw voice | Θ protruded-tongue voice |