ADAPTIVE ERROR CONTROL FOR ADPCM SPEECH CODERS

摘要

Methods and apparatus for improving the perceived quality of ADPCM encoded signals by magnitude limiting samples (30, 32) of the ADPCM encoded signals prior to the decoding of samples, using an ADPCM decoder (70), of the ADPCM encoded signals. A sample of the ADPCM encoded signal is magnitude limited by the magnitude limiter (30) when a receive error is detected for the corresponding segment of the ADPCM encoded signals.