A scalable to lossless audio compression scheme

This paper outlines a scalable to lossless coder, that is the coder presented is a scalable coder that scales from lossy quality to lossless quality. Lossless compression is achieved by concatenating a lossy, scalable transform coder with a scalable scheme for the compression of the synthesis error signal. The lossless compression results obtained are comparable with the state of the art in lossless compression (that is a compression ratio ranging from 1.74 to 5.27). The added advantage of the compression scheme presented is the scalability, which is obtained by basing the lossy coder on the Set Partitioning In Hierarchical Trees (SPIHT) algorithm.