p.862是ITU标准提案，主要是用来对窄带电话网的端到端语音质量和语音编码器解码的语音质量进行评估。中有p.862的标准文档和实现软件。-p.862 is ITU standard proposal, is mainly used to evaluate the narrowband telephone network and the end-to-end voice quality and voice quality of the decoded speech encoder. P.862