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Voices

Voices. Priyankoo Sarmah Dept. of HSS. Interests. Sounds Writing Systems. Sounds. Voices and Noises Human hearing range 20-20000 Hz What is the average frequency of speech? 30 Hz 19000 Hz 5000 Hz 9000 Hz Can we hear small differences?

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Voices

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  1. Voices Priyankoo Sarmah Dept. of HSS

  2. Interests • Sounds • Writing Systems

  3. Sounds • Voices and Noises • Human hearing range 20-20000 Hz • What is the average frequency of speech? • 30 Hz 19000 Hz 5000 Hz 9000 Hz • Can we hear small differences? • 350 Hz 351 Hz 352 Hz 353 Hz 354 Hz 356 Hz JND (just noticeable distance)

  4. Sound Perception • Kiki and Buba

  5. Sound Perception

  6. Sound Perception McGurk’s Effect

  7. Sound Production • How many languages are there in the world? • How many sounds are there in these languages?

  8. Sound Production • Some languages exploit the speech mechanism very well. • Chinese Tones use F0 to differentiate meanings among words • ‘to hang over’ ‘to answer’ ‘to hit’ ‘big’ • Xhosa uses ‘clicks’ • ‘to grind’ ‘to break stones’ ‘peace’

  9. Using more than one pitch

  10. Contact priyankoo@iitg.ernet.in

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