A Discrete Cosine Transform Scheme for Low-Delay Wideband Speech Coding

Abstract:

In this paper a general transform domain formulation of a low-delay frequency domain technique [1],[2] recently developed is presented. Following this formulation a Discrete Cosine Transform scheme is proposed which combined with trellis coded quantization leads to a Transform Trellis Coded Quantization technique. This technique is applied to the coding of wideband speech at 32 kbps with low delays, simulation results showing a very high speech quality comparable to that obtained by the G722 standard at 64 kbps.

Año de publicación:

1995

Keywords:

Fuente:

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