Double Talk Processing using Blind Signal Separation in Acoustic Echo Canceller

Acoustic Echo Canceller White Paper

Acoustic Echo and Noise Cancellation System for Hand- Free Telecommunication using Variable Step Size Algorithms

In this paper, acoustic echo cancellation with doubletalk detection system for a hand-free telecommunication system is implemented using Matlab. Here adaptive noise canceller with blind source separation (ANC-BSS) system is proposed to remove both background noise and far-end speaker echo signal in presence of double-talk. During the absence of double-talk, far-end speaker echo signal is cancel...

A hybrid acoustic echo canceller and suppressor

Wideband communication is becoming a desired feature in telephone conferencing systems. This paper proposes a computationally efficient echo suppression control algorithm to be used when increasing the bandwidth of an audio conferencing system, e.g. a conference telephone. The method presented in this paper gives a quality improvement, in the form of increased bandwidth, at a negligible extra c...

ASIC - Based Acoustic Echo - Canceller Board ' for

This paper deals with the design and realization of an echo-canceller board for a VME bus. The work has been carried out by integrating the abilities and the competences of some academic and industriai research groups within the framework of Subproject 3.1 of the ltalian National Research Council «TelecommuniCation Project». The board implements an efficient algorithm for the cancellation of ac...

A double-talk detector for acoustic echo cancellation applications

In acoustic echo cancellation applications, the presence of near-end speech causes divergence of the adaptive "lter which is used to model the echo path. A robust acoustic echo canceler is the one which is equipped with an algorithm that detects periods of double talk and puts the adaptive algorithm into a double-talk handling mode. This paper proposes a double-talk detector based on an angle m...