基于质量评价技术的多信道语音选优决策系统

在分析远距离多信道同源语音信道特性的基础上 ,用若干特征参数来表征信道传输的语音质量并建立了语音质量客观评价模型 ,结合人的听觉特性等因素开发出一种基于语音质量客观评价技术的优质语音信道选优决策系统。该系统能够确保语音通信始终在最佳信道上 ,且在切换过程中无跳变感觉 ,不影响听觉效果 ,现已在实际工程中得到成功运用并取得了满意效果。

Decision System on Picking Optimal Speech from Multi-Channel Based on Assessment of Speech Quality

In this paper, a decision system on picking optimal speech from multichannel is presented. First, the feature parameters which are used to describe speech quality are extracted on the basis of analyzing the properties of remote speech communication channels. Second, an objective assessment model of speech quality is founded. Finally, a decision system has been developed combined with properties of human being. This decision system can ensure that communication should be carried on the best speech channel, as well as it can also keep a good audio performance during switching. The system has been applied in practice successfully and its performance is very satisfying.