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Influence of Speech Codec on Speech Enhancement Algorithm in Telecommunication System

YE Lijian

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Abstract

Some speech codec methods and single-channel speech enhancement algorithms are studied.And these two functions are combined to simulate the real telecommunication system.It is concluded that basically in high coding rate,the linear prediction(LP) analysis based speech codec methods do not affect the speech enhancement algorithms,and sometimes reduce the speech distortion owing to the excessive enhancing.So the results of the speech enhancement can be increased.

About this research paper

What this paper is about

Some speech codec methods and single-channel speech enhancement algorithms are studied.And these two functions are combined to simulate the real telecommunication system.It is concluded that basically in high coding rate,the linear prediction(LP) analysis based speech codec methods do not affect the speech enhancement algorithms,and sometimes reduce the speech distortion owing to the excessive enhancing.So the results of the speech enhancement can be increased.

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Available abstract

Some speech codec methods and single-channel speech enhancement algorithms are studied.And these two functions are combined to simulate the real telecommunication system.It is concluded that basically in high coding rate,the linear prediction(LP) analysis based speech codec methods do not affect the speech enhancement algorithms,and sometimes reduce the speech distortion owing to the excessive enhancing.So the results of the speech enhancement can be increased.

Key concepts: Adaptive Multi-Rate audio codec, Codec2, Speech coding, Codec, Computer science, Speech recognition, Vector sum excited linear prediction, Speech enhancement

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