Subband coding of digital audio signals
Raymond N. J. Veldhuis, Marcel M. Breeuwer, R.G. van der Waal · University of Twente Research Information · 1989
A subband coding method for high-quality digital audio signals is described. To achieve low bit rates at a high quality level, it exploits the simultaneous masking effect of the human ear. It is shown how this effect can be used in an adaptive bit allocation scheme. The method is capable of reducing the bit rate of a compact disk signal by a factor of seven. Results obtained with a low-complexity and a high-complexity system are discussed.