Fractal Wavelet Compression of Audio Signals

A novel approach to audio signal compression is described which marries wavelet transform coding with fractal-based compression techniques. The signal is divided into frames which are subjected to a fast wavelet transform, with subsequent fractal coding of high-frequency wavelet coefficients using a...

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Veröffentlicht in:	Journal of the Audio Engineering Society 1997-07, Vol.45 (7/8), p.540-553
Hauptverfasser:	Wannamaker, Robert A, Vrscay, Edward R
Format:	Artikel
Sprache:	eng
Schlagworte:	Acoustics Exact sciences and technology Fundamental areas of phenomenology (including applications) Physics Transduction acoustical devices for the generation and reproduction of sound
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Beschreibung
Zusammenfassung:	A novel approach to audio signal compression is described which marries wavelet transform coding with fractal-based compression techniques. The signal is divided into frames which are subjected to a fast wavelet transform, with subsequent fractal coding of high-frequency wavelet coefficients using a collage approach. Results from initial implementation are examined. Compression ratios above 6:1 should ultimately be attainable with good-fidelity signal reconstruction.
ISSN:	1549-4950 0004-7554