syllables & rhythm Flashcards
what can we define syllables according to>
measure:
-chest pulses
-sonority hierarchy
-prominence
planning unit in speech production:
-motor control
chest pulses, (s,1951)
-each syllable as a contraction of the breathing muscles
-air is pushed out of the lungs
what is the sonority of a syllable:
-idea sonority (loudness) increases from beginning of syllable onwards & decreases from beginning of peak onwards
what is sonority?>
loudness relative to other segments (everything else held constant)
General trend of ‘sonority hierarchy’>
-vowels as MOST sonorous
-consonants as less
-stops as LEAST sonorous
sonority and explaining segment combinations>
-sonority explains why certain combinations are more common than others
>(e.g. ‘-mk’ vs ‘-pl’)
-[m] as more s than [k] so less likely than; pl as [p] is less s than [l]
exceptions to sonority & explaining segment combinations>
-‘spa’
>[s] as not very s; [p] as even less s; [a] as very s
>^inverse order
problems with sonority as a concept>
-many exeptions (spa)
-not possibly to accurately measure phonetically (abstract)
-arguments around s & syllable definitions are somewhat circular
prominence theory>
idea that certain elements of an utterance are more important than others & these correspond to prosodic units–>with this measured by a combination of ‘measurable’ acoustic parameters
acoustic parameters involved in ‘prominence theory’>
-amplitude
-spectral shape
-fundamental frequency
-periodicity (shape of wave, how periodic, how often repeats)
motor control theory (L&W,1994)>
-syllables as a planning unit in speech
>speakers ‘store’ commonly used combinations of speech production movments
>these occur in syllable sized chunks
so syllable ultimately as 1 of 2>
- some acoustic parameter we can measure
- a unit for storing speech info used in production
phonotactics=
which segments pattern in what order in a particular language
>(e.g. in eng: [ŋ] can only occur syllabl-finally)
syllable structure>
syllable as always having–>middle part of RHYME (+sometimes ONSET)
rhyme as–>always NUCLEUS (+sometimes CODA)
nucleus vs rhyme>
-nucleus as central segment of a syllable
-rhyme as core of a syllable consisting of NUCLEUS +CODA