<H4>SHORTEN:</H4> <BR>Simple lossless and near-lossless waveform compression

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SHORTEN: Simple lossless and near-lossless waveform compression

Tony Robinson

Technical report CUED/F-INFENG/TR.156

Cambridge University Engineering Department,
Trumpington Street, Cambridge, CB2 1PZ, UK

December 1994


This report describes a program that performs compression of waveform files such as audio data. A simple predictive model of the waveform is used followed by Huffman coding of the prediction residuals. This is both fast and near optimal for many commonly occuring waveform signals. This framework is then extended to lossy coding under the conditions of maximising the segmental signal to noise ratio on a per frame basis and coding to a fixed acceptable signal to noise ratio.

Tony Robinson: ajr4@cam.ac.uk