A-law and u-law are companding schemes used in telephone network to get more dynamics to the 8 bit samples that is available with linear coding.
Typically 12..14 bit samples (linear scale) sampled at 8 kHz sample.
8 bit (logarithmic scale) for transmission over 64 kbit/s data channel.
In the receiving end the data is then converter back to linear scale (12..14 bit) and played back. converted back
Tidak ada komentar:
Posting Komentar