首页>
外国专利>
method and device for the recognition of the presence and absence of signal or useful word spoken on lines foniche channels potentially
method and device for the recognition of the presence and absence of signal or useful word spoken on lines foniche channels potentially
展开▼
机译:用于识别在行foniche信道上可能存在的信号或有用词的存在和不存在的方法和设备
展开▼
页面导航
摘要
著录项
相似文献
摘要
A system and method for detecting the presence of useful speech information in telephone voice channels capable of containing noise as well as such useful speech information for optimizing the telephone transmission of such speech information. Two segments of the envelope of a given voice channel are compared against each other over two different time domains in order to determine if a predetermined magnitude of difference exists between these envelopes. The presence of such magnitude of difference is indicative of the presence of such useful speech information in the voice channel thereby enabling transmission thereof by the system, whereas the absence of such magnitude of difference is indicative of the presence of solely noise thereby preventing the transmission thereof by the system.
展开▼