Voices

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
McGurks Effect
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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

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Using more than one pitch
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Contact

• priyankoo_at_iitg.ernet.in