Data Rates

 Telephone quality voice:

 8000 samples/sec, 8 bits/sample, mono

 64Kb/s

 CD quality audio:

 44100 samples/sec, 16 bits/sample, stereo

 ~1.4Mb/s

 Communications channels and storage cost money (although less

than they used to)

 What can we do to reduce the transmission and/or storage costs

without sacrificing too much quality?-Data Rates

　Telephone quality voice:

　8000 samples/sec, 8 bits/sample, mono

　64Kb/s

　CD quality audio:

　44100 samples/sec, 16 bits/sample, stereo

　~1.4Mb/s

　Communications channels and storage cost money (although less

than they used to)

　What can we do to reduce the transmission and/or storage costs

without sacrificing too much quality?