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Principles of Aerodynamic Phonology, Phonetic Environments

Aerodynamic Phonology is Relevant to 1)Voicing Constraints, 2) manner of Articulation 3) Epenthetic Stops
What does Subglottal Pressure do: a) during aspiration? b) during Stops? a)Drops b) builds up slightly
For voicing to continue (Aerodynamic Voicing constraint), trans glottal pressure must: Exceed 2 cm H2O
Aerodynamic Voicing constraint has what effect on stops +vc? Stops +vc tend to devoice (due to)
What Consonants are more likely to be voiceless and why? Dorsals (back), because their vocal tube is shorter and have less of a threshhold for voicing
In which place of articulation does voicing last the longest? Why? Bilabial, because the vocal tract is the longest
In what phonological environment do stops have a tendency to Spirantize?(become approximants)? (Span /todo/) Why? in V[stop]V position, because of the co articulationary effects that the preceding and following vowel place on the stop, which is SHORTENED, the burst strength is weakened,and the duration of V_ is legnthened in VCV position,
Epenthetic Stops result from what?,in what environments? from early closure, often between a bilabial nasal_ fricative ( sumpster,humpfry,hampster))
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