Speech Acoustics
The Source Filter Model of Speech Production
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The aim of this section is to familiarize you with the basic way inwhich speech sound are produced.
On successful completion of this topic you will be able to:
- Give a basic description of the source-filter model of speech production.
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1. What causes the periodic fluctuations in air pressure for a voiced sound(i.e. what is the source of excitation)?
Air being pushed out of the lungs | |
Air flow being chopped up by the periodic opening and closing of the vocal folds | |
The articulators coming close together, but not closing completely | |
The soft palate lowering |
2. What is the collective term for the parts of the vocal tract thatmove around in order to produce different sounds?
Articulators | |
Lips | |
Tongue | |
Velum |
3. The phonemes /b/, /d/ and /k/ are all what sort of sounds?
Nasal | |
Voiced | |
Plosive or Stops | |
Fricatives |
4. The phonemes /f/ and /z/ differ in both ...?
Voicing and Manner | |
Voicing and Place | |
Manner and Place |
5. Is it possible to produce a voiceless nasal sound?
Yes | |
No |
(c) Dr Richard J Baker, School of Psychological Sciences, University of Manchester