speech channel

A Study on the Influence of the Telephone Channel on the Speech Parameters

电话信道对语音信号参数影响的研究

Flexible call the algorithm according to the speech feature of telephone channel meets the requirement of the large-scale implementation, multi-channel, real-time and accurate detection.

根据话路语音特征，采取对算法的灵活调用，满足了实际电话信道语音实时、多路、大规模实现和精确检测的需求。

CELP coders, due to its high quality of reconstructed speech and robustness against channel noise, have many applications in mobile communication, encrypted telephone and voice relay service etc.

CELP以其高质量的合成语音及优良的抗噪声和多次转接性能，在移动通信，保密电话和语音中继等中低速率上获得了广泛应用。

Conventional multi channel speech communication recording systems consist of analog or digital tape recorder with large size and costs.

传统的多通道通信记录设备是由模拟磁带机或数字磁带机构成，设备庞大复杂，价格高昂。

In this paper, the two level CMS is adopted for channel compensation of telephone speech recognition.

将二阶CMS方法应用到电话语音识别的通道补偿中,实验表明该方法的性能优于通常的CMS方法.

This paper addresses the problem of speech recognition under telephone channel conditions using data simulation method and HMM ( Hidden Markov Model) adaptation.

该文研究了基于数据模拟方法和HMM（隐马尔科夫模型）自适应的电话信道条件下语音识别问题。

Another work in this project is to develop a proper space-filling curve to map the speech signal samples into the channel space directly.

另一项主要工作是筛选合适的空间映射曲线，使语音采样信号能够直接映射到信道中去。