Multi-level Optimization of G.729A Speech Compression Algorithm
Xianyi Rui · Jisuanji gongcheng · 2011
Aiming at the shortages that G.729A speech compression algorithm has considerably complexity and computational cost,this paper presents a Aitken Polynomial Ferrari-Line Spectrum Pairs(APF-LSP) algorithm which can quickly calculate LSP coefficient.In order to be real-time implementation on TMS320C5510 DSP platform to fairly meet the requirement for real-time processing,realizes a three-level optimization in algorithm,language and compiler for G.729A algorithm.Test result shows the calculation complexity of optimized G.729A algorithm reduces from 590.097 MIPS to 50.523 MIPS,and the executing speed increases over 11 times.