CAJ | 학술논문

针对音频评价系统中信号同步处理对算法准确度、复杂度、实时性等要求,提出一种简单、有效、实时的活动音频检测方法.该方法基于音频短时能量特征,通过能量均值和均方差分层逐步调整,动态设定判决门限,通过倒置非活动音频段,快速区分活动音频和非活动音频.提出的方法在低信噪比环境下也能实时地检测出活动音频.
침대음빈평개계통중신호동보처리대산법준학도、복잡도、실시성등요구,제출일충간단、유효、실시적활동음빈검측방법.해방법기우음빈단시능량특정,통과능량균치화균방차분층축보조정,동태설정판결문한,통과도치비활동음빈단,쾌속구분활동음빈화비활동음빈.제출적방법재저신조비배경하야능실시지검측출활동음빈.
The paper proposes a new,effective and real-time algorithm to detect active audio in order to meet the demands of accuracy,complexity and real-time property for signal synchronization in audio assessment system.Based on the short time energy characteristics,the algorithm dynamically sets the threshold using average energy and standard deviation,distinguishes active audio from non-active audio by reversing non-active audio segments.The proposed algorithm also produces a good result in low SNR environment to synchronously detect active audio.