Echo canceller generally needs a double-talk detector which is used to keep the adaptive filter from diverging in the appearance of near-end speech.In this paper we adopt a new double-talk detection algorithm based on...Echo canceller generally needs a double-talk detector which is used to keep the adaptive filter from diverging in the appearance of near-end speech.In this paper we adopt a new double-talk detection algorithm based on I_(2)norm to detect the existence of near-end speech in an acoustic echo canceller.We analyze this algorithm from the point of view of functional analysis and point out that the proposed double-talk detection algorithm has the same performance as the classic one in a finite Banach space.The remarkable feature of this algorithm is its higher accuracy and better computation complexity.The fine properties of this algorithm are confirmed by computer simulation and the application in a multimedia communication system.展开更多
基金Supported by the the National High Technology Development of China(863-306-ZT05)
文摘Echo canceller generally needs a double-talk detector which is used to keep the adaptive filter from diverging in the appearance of near-end speech.In this paper we adopt a new double-talk detection algorithm based on I_(2)norm to detect the existence of near-end speech in an acoustic echo canceller.We analyze this algorithm from the point of view of functional analysis and point out that the proposed double-talk detection algorithm has the same performance as the classic one in a finite Banach space.The remarkable feature of this algorithm is its higher accuracy and better computation complexity.The fine properties of this algorithm are confirmed by computer simulation and the application in a multimedia communication system.
