Vector quantizers for subband coded waveforms

Vector Quantization (VQ) and subband coding (SBC) are two of the most efficient data compression systems in the field of medium-to-low rate speech waveform coding. In this paper, we examine the performance of a coding system operating at either 6,500 bits per second or 13,000 bits per second which incorporates a full-search vector quantizer to encode the outputs coming from a complete subband coder filter bank.