31 lines
742 B
Markdown
31 lines
742 B
Markdown
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# Phoneme
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- Smallest unit of speech
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- Distinguish words
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- Continuous speech is stream of different phonemes
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- English has 44
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- Consonants
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- Voiced or unvoiced
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- Vowels
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- All voiced
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# Voiced
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- Quasi-periodic vibration of vocal cords
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- Sound transmitted along vocal tract unimpeded
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- Air forced through glottis
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- Quasi-periodic oscillation
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# Unvoiced
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- Air flow through vocal apparatus is either cut-off or impeded
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- Constriction using tongue or lips
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- Turbulence or noise
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- Fricatives
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- \\s\\, \\f\
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- Plosives
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- \\p\\, \\t\
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- Modelled as random noise
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# Formant
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- Vocal tract can be modelled as resonant system
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- Modes or peaks in spectral response of resonant system
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- Lowest 3 most important in speech
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