On a Detection of the ZCR-Parameter for Higher Formants of Speech Signals

음성신호의 상위 포만트에 대한 ZCR-파라미터 검출에 관한 연구

In many applications such as speech analysis, speech coding, speech recognition, etc., the voiced-unvoiced decision should be performed correctly for efficient processing. One of the parameters which are used for voice-unvoiced decision is zero-crossing. But the information of higher formants have not represented as the zero-crossing rate for higher formants of speech signals.