Exam 1997 Question 6
"Write notes on ALL of the following: (a) speech pattern audiometry (50%) (b) creaky voice (25%) (c) harmonic synthesis (25%)."
20 things you should mention:
- Speech Pattern Audiometry
- use of synthetic speech
- presented at comfortable listening levels
- to test abilities to identify
- and discriminate simple speech sounds
- use a continuum between two prototypes
- categorisation ability/labelling ability
- types of labelling behaviour
- relate to perceptual ability
- graphs
- example stimuli
- Creaky voice
- irregular
- low-pitched
- folds slack but pressed
- good closures/long closed phase
- mix of long/short periods
- Harmonic synthesis
- generation of complex periodic waveforms
- by addition of sinusoids
- at harmonics frequencies (multiples) of Fx
- need to control phase
- results on spectrum/example
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