Research on Low Delay 10 k/s Speech Coding Algorithm
Yang Shi-lon · Sci-Tech Information Development & Economy · 2011
This paper introduces a 10 k/s speech coding algorithm with delay of 2.5 ms in sampling rate of 8kHz, which uses a CELP with frame size of 20 and a method of cascading adaptive codebook search and algebra codebook search to make vector quantization. The PC simulation and PESQ test show that the synthesized speech quality is close to G.728 of 16k/s.