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2011•Modern Electronics TechniqueRequires access

Design of G.729 Speech Codec Based on DSP

Bai Tian-shi

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Abstract

An optimized ITU-T G.729 speech codec based on DSP is designed.The algorithm and code adopted in the source code which overcame the low efficiency and long executive time on a DSP.The optimized algorithm provided a high quality of the speech output and improved the code executive efficiency,realized the real-time processing of the speech signal.The codec system performance is tested and the result satisfies the design requirements.

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What this paper is about

An optimized ITU-T G.729 speech codec based on DSP is designed.The algorithm and code adopted in the source code which overcame the low efficiency and long executive time on a DSP.The optimized algorithm provided a high quality of the speech output and improved the code executive efficiency,realized the real-time processing of the speech signal.The codec system performance is tested and the result satisfies the design requirements.

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Available abstract

An optimized ITU-T G.729 speech codec based on DSP is designed.The algorithm and code adopted in the source code which overcame the low efficiency and long executive time on a DSP.The optimized algorithm provided a high quality of the speech output and improved the code executive efficiency,realized the real-time processing of the speech signal.The codec system performance is tested and the result satisfies the design requirements.

Key concepts: Codec, Digital signal processing, Computer science, Speech coding, Adaptive Multi-Rate audio codec, Codec2, Code (set theory), Speech recognition

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