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Codec System Design Of G.729 Based On DSP

Gao Ming-quan

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Abstract

Using high compression ratio speech codec can guarantee connection quality and raise communication system's efficiency. For reducing complexity of decoding operation the paper carries on the elaboration to system's overall design and gives a kind of op-timized decoding algorithm on DSP VC5502 based on CS-ACELP algorithm. The test result indicates optimized CS -ACELP speech codec algorithm can be carried out simultaneously for many channel. It saves the resources effectively.

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What this paper is about

Using high compression ratio speech codec can guarantee connection quality and raise communication system's efficiency. For reducing complexity of decoding operation the paper carries on the elaboration to system's overall design and gives a kind of op-timized decoding algorithm on DSP VC5502 based on CS-ACELP algorithm. The test result indicates optimized CS -ACELP speech codec algorithm can be carried out simultaneously for many channel. It saves the resources effectively.

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Available abstract

Using high compression ratio speech codec can guarantee connection quality and raise communication system's efficiency. For reducing complexity of decoding operation the paper carries on the elaboration to system's overall design and gives a kind of op-timized decoding algorithm on DSP VC5502 based on CS-ACELP algorithm. The test result indicates optimized CS -ACELP speech codec algorithm can be carried out simultaneously for many channel. It saves the resources effectively.

Key concepts: Codec, Computer science, Decoding methods, Digital signal processing, Speech coding, Adaptive Multi-Rate audio codec, Computer hardware, Speech recognition

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