基于RNN的非线性预测语音编码

A Non-linear Prediction Speech Coding Based on RNN

利用递归神经网络 ( RNN)的内部记忆特性 ,改善了非线性预测过程中对语音长时相关性的预测能力。实验表明 :本文提出的基于 RNN非线性预测的 ADPCM语音编码算法 ,其恢复的语音质量优于 ITU G.72 1建议的

In this paper, a non linear prediction speech coding ADPCM algorithm based on RNN is introduced. In this coding system,long term correlation is extracted by using the inner memory of RNN.Experiment results indicate that the speech quality of the system based on RNN is better than that of standard G 721 system.