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采用ITU-T评价主观语音质量的PESQ算法和码元独立受损模型评价了G.729声码器各码元的主观敏感度,给出了仿真得出的G.729码元敏感度列表。并结合仿真得到的数据和G.729自身保护机制,给出了实用有效的声码器保护建议。
The Subjective Sensitivity of G.729 vocoder was evaluated by using PESQ algorithm of ITU-T to evaluate subjective voice quality and independent damage model of symbol. The sensitivity of G.729 symbol was given. Combined with the data obtained by simulation and the self-protection mechanism of G.729, a practical and effective vocoder protection recommendation is given.