首页>
外国专利>
Method and apparatus for blind by means of the transmission channel effects on a digital voice signal
Method and apparatus for blind by means of the transmission channel effects on a digital voice signal
展开▼
机译:通过传输信道对数字语音信号产生影响的方法和设备
展开▼
页面导航
摘要
著录项
相似文献
摘要
The invention concerns a method and a device for blind equalizing of a transmission channel effects on a digital speech signal. The speech signal ({Sn(t)}) is transformed into (1000) cepstral vectors ({Cn(i)}). Each of the cepstral vectors is subjected to an adaptive filtering (1002), based on a reference spectrum ({Rn(i)}) (1001) representing the speech signal long term spectrum, to generate equalized cepstral signals ({Cn(i)}) representing an equalized speech signal. The invention is applicable to automatic speech recognition.
展开▼