Lossless data compression of digital audio signals is useful when it is necessary to minimize the storage space or transmission bandwidth of audio data while still maintaining archival quality.

Lossy compression schemes can be based on a source model, as in the case of speech compression, or a user or sink model, as is somewhat the case in image compression. In this chapter we look at audio ...

Suppose on the face value their claims are true about the compression ratio vs fidelity loss - "CD quality audio at 1/10th the current standard data size". That's an order of magnitude improvement. So ...