European Conference on Speech Technology
Edinburgh, Scotland, UK
The combination of Vector Quantization (VQ) and predictive techniques -named AVPC systems- has been shown as interesting systems for speech waveform coding at medium-high rates (ref. 1 to 3). In this work we present a such system including a previous four subbbands splitting. This allows good quality of speech at low-medium rates (1-1.25 bits/sample). A comparative study show that the AVPC-SBC outperforms the simple AVPC coder.
Bibliographic reference. Masgrau-Gomez, E. / Marino, José B. / Rodriguez-Fonollosa, J. A. / Salavedra-Moli, J. (1987): "AVPC-subband coding system for speech encoding", In ECST-1987, 2189-2192.