文章介绍了基于IP的语音通信(VoIP)中语音质量的评价方法。通过研究语音质量的评价方法来达到对VoIP语音质量的监控，并使之能够保持一定的服务水平是很有必要的。文章还分析了主观评价模型与客观评价模型的实现原理，最后给出了主观评价模型与客观评价模型试验的量化比较结果以及不同客观评价模型试验的量化比较结果。

The voice quality evaluation methods for VoIP (Voice over IP) are introduced in this paper. It is necessary to monitor the VoIP voice quality by the study of these methods and enable it to keep a certain level of service. In this paper, the principle for the implementation of subjective and objective evaluation models is analyzed and the quantitative comparison results between their tests and between different objective evaluation model tests are given.