3 Sep 2003
CS 6210: Module 4
15/24
Amplitude and Channels
¡Sampling at these time intervals to get amplitude of signal
la total of ~30-60 dB in loudness
lHuman ear more sensitive to soft sounds
lCompand amplitude
(use log scale to more precisely represent
low volumes)
l1 or 2 bytes
¡For each time interval, may have to sample one or more channels
lDifferential coding (joint stereo)
lDolby AC 3 = __________________
lStereo = 2 channels