Title :
Adaptive differential entropy-a new approach to high fidelity audio digital data rate reduction
Author :
Weaver, C.S. ; Conner, A.B.
Author_Institution :
Digideck Inc., Mountain View, CA, USA
Abstract :
New audio digital data rate reduction techniques, requiring under 10 percent of the computational burden of ADPCM that achieve near 16-bit CD fidelity with 4 to 6 bits per compressed sample, are described.<>
Keywords :
audio signals; filtering and prediction theory; pulse-code modulation; ADPCM; differential entropy; high fidelity audio digital data rate reduction; Adaptive filters; Bit rate; Decoding; Digital filters; Entropy coding; Filtering; Matched filters; Noise shaping; Nonlinear filters; Transmitters;
Conference_Titel :
Consumer Electronics, 1988. Digest of Technical Papers. ICCE., IEEE 1988 International Conference on
Conference_Location :
Rosemount, IL, USA
DOI :
10.1109/ICCE.1988.10751
