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An Implementation of Multichannel Real Time Speech Codec Based on TMS320F2812

Gang Wei

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Abstract

An Implementation of the adaptive multi-rate speech codec based on the TMS320F2812 fixed-point DSP chip is presented. By exploiting the multichannel ADCs and PWMs of the TMS320F2812, the codec is extended to a multichannel real-time speech codec. The key technologies of the implementation of real-time speech codec are discussed. The computation complexity and the required store memory are also presented.

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What this paper is about

An Implementation of the adaptive multi-rate speech codec based on the TMS320F2812 fixed-point DSP chip is presented. By exploiting the multichannel ADCs and PWMs of the TMS320F2812, the codec is extended to a multichannel real-time speech codec. The key technologies of the implementation of real-time speech codec are discussed. The computation complexity and the required store memory are also presented.

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Available abstract

An Implementation of the adaptive multi-rate speech codec based on the TMS320F2812 fixed-point DSP chip is presented. By exploiting the multichannel ADCs and PWMs of the TMS320F2812, the codec is extended to a multichannel real-time speech codec. The key technologies of the implementation of real-time speech codec are discussed. The computation complexity and the required store memory are also presented.

Key concepts: Adaptive Multi-Rate audio codec, Codec, Computer science, Digital signal processing, Codec2, Speech coding, Full Rate, Key (lock)

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