Candidate scheme for MP-MLQ search in G723.1

Abstract

For the purpose of low cost or low power consumption, a cost-effective solution with good trade-off between quality and complexity must be estimated for a small mobile device. We propose a condensed MP-MLQ algorithm to reduce the search computation required for G723.1. Simulation results show that the proposed method can reduce about 50/spl sim/82% the computational load for stochastic codebook search with perceptually intangible degradation. This reduction would be helpful to save power consumption and relax the CPU load for a mobile device in wireless communication, e.g., PALM, PDA.