Optimized Speech Compression Algorithm Based on Wavelets Techniques and its Real Time Implementation on DSP

This paper presents an optimized speech compression algorithm using discrete wavelet transform, and its real time implementation on fixed-point Digital Signal Processor (DSP). The optimized speech compression algorithm presents the advantages to ensure low complexity, low bit rate and achieve high speech coding efficiency and this by adding a Voice Activity Detector (VAD) module before the application of the discrete wavelet transform. The VAD module avoids the computation of the discrete wavelet coefficients during the inactive voice signal.

Resource Details

Provided by: