To study quantization and aliasing effects.
To synthesize vowels /a/, /i/ and /e/
Sequence of steps
- Record a short utterance of speech for 2 to 3 sec (8 kHz, 16 bits).
- Listen to speech at different bit rates (16 bits/sample, 8 bits/sample and 1 bit/sample).
- Listen to speech at different sampling rates (8 kHz, 4 kHz and 2 kHz).
- Synthesize vowels /i/, /e/ and /a/ for the actual pitch period, half thepitch period and twice the pitch period.
- Write a brief note on the observations.