Wannamaker, R.A., and E.R. Vrscay, "Fractal Wavelet Compression of Audio Signals," J. Audio Eng. Soc., vol. 45, 1997 Jul./Aug.


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 implementations are examined. Compression ratios above 6:1 should ultimately be attainable with good fidelity signal reconstruction.