8th European Conference on Speech Communication and Technology

Geneva, Switzerland
September 1-4, 2003


Multi-Rate Extension of the Scalable to Lossless PSPIHT Audio Coder

Mohammed Raad (1), Ian Burnett (1), Alfred Mertins (2)

(1) University Of Wollongong, Australia
(2) University of Oldenburg, Germany

This paper extends a scalable to lossless compression scheme to allow scalability in terms of sampling rate as well as quantization resolution. The scheme presented is an extension of a perceptually scalable scheme that scales to lossless compression, producing smooth objective scalability, in terms of SNR, until lossless compression is achieved. The scheme is built around the Perceptual SPIHT algorithm, which is a modification of the SPIHT algorithm. An analysis of the expected limitations of scaling across sampling rates is given as well as lossless compression results showing the competitive performance of the presented technique.

Full Paper

Bibliographic reference.  Raad, Mohammed / Burnett, Ian / Mertins, Alfred (2003): "Multi-rate extension of the scalable to lossless PSPIHT audio coder", In EUROSPEECH-2003, 1117-1120.