首页> 外文会议>European Conference on Speech Communication and Technology v.4; 20010903-20010907; Aalborg; DK >Joint Source-Channel Coding for Low Bit-Rate Coding of LSP Parameters
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Joint Source-Channel Coding for Low Bit-Rate Coding of LSP Parameters

机译:LSP参数的低比特率编码的联合源信道编码

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摘要

This work presents a quantization technique for LSP parameters which results in a low bit-rate transmission while providing protection against channel errors. As a generalization of the so called Channel Optimized Vector Quantization (COVQ), Channel Optimized Matrix Quantization (COMQ) can remove intraframe and interframe LSP redundancy with the target of protecting the information sent through a channel in the presence of noise. Split COMQ is used in order to reduce storage requirements and complexity. Results show that Split COMQ gives better performance under certain error conditions and a lower bit rate transmission in all channel conditions compared to the reference quantization techniques.
机译:这项工作提出了一种针对LSP参数的量化技术,该技术可导致低比特率传输,同时提供针对信道错误的保护。作为所谓的信道优化矢量量化(COVQ)的概括,信道优化矩阵量化(COMQ)可以删除帧内和帧间LSP冗余,其目标是在存在噪声的情况下保护通过信道发送的信息。使用拆分COMQ是为了减少存储需求和复杂性。结果表明,与参考量化技术相比,Split COMQ在某些错误情况下可提供更好的性能,而在所有通道条件下均可提供较低的比特率传输。

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