An 1.44Kbps Speech Coding Algorithm based on LSP
Yong Li · Microelectronics & Computer · 2001
This paper presents a simple and efficient speech coding algorithm based on traditional LPC algorithm. By employing dynamic smoothing method to optimize the pitch detector and split vector quantization to reduce coding rate of LSP parameters, a high level of speech quality and intelligibility is achieved at 1.440 Kb/s. Because of the low computation complexity and high efficiency of coding, it is one of the best algorithms suitable for ASIC design.