Lossless Compression Algorithms for High Fidelity Audio Compression

Real-time algorithms for the compression of high-fidelity audio are presented. The goal of these algorithms is to provide a compact, high fidelity, digital representation for an input stream of audio samples. We are developing an adaptive transform coding system that consists of five specialized functional blocks: An octave-based subband decomposition signal transformer [1,21, a bank of adaptive quantizers assisted by a bit allocator, and a lossless compressor coupled with a buffer.