Composite permutation coding of speech waveforms
Luzheng Lu, G. Cohen, Philippe Godlewski · 2005
A new vector coding (quantization) system and its application to speech waveforms are presented. This system consists of several permutation codes of Variant I. An algorithm for the system design is developed. An encoding procedure which minimizes the distortion and finds out the reproduction index to be transmitted using a algebraic method is proposed. The system was designed and tested for the encoding of speech waveforms. The results of experimental simulations show that this is a prospective vector coding scheme with simple encoding procedure, smaller memory required, and not large computational burden of the design algorithm.