749 B
749 B
PCM Audio
Puse-code modulation digitally represents analog audio signals as a stream of measurements of the amplitude of the signal sampled at uniform intervals (the sampling rate) and quanitized to the nearest value within the range of available steps (limited by the bit depth). Multiple audio channels are commonly interleaved.
Sampling Rate
Digital audio is typically sampled at 48 kHz (DVD video) or 44.1 kHz (CD audio).
Bit Depth
| Bit Depth | Minimum Value | Maximum Value |
|---|---|---|
| 8 | -128 | 127 |
| 16 | -32768 | 32767 |
| 24 | -8388608 | 8388607 |