A Design Method of Echo Canceller with Orthogonal ECLMS Algorithm

Low Power Design of an Acoustic Echo Canceller Gmdf a Algorithm on Dedicated VLSI Architectures

The acoustic echo cancellation with adaptive filters is a computationally intensive problem that needs real time cost effective solutions for embedded systems. Low Power optimized signal processing architectures are likely to provide such solutions in the future. In this paper, we present different realtime optimized architectures of the popular Gmdfα algorithm, obtained by a HLS CAD tool provi...

Subband stereo echo canceller using the projection algorithm with fast convergence to the true echo path

This paper proposes a new subband stereo echo canceller that converges to the true echo path impulse response much faster than conventional stereo echo cancellers. Since signals are bandlimited and downsampled in the subband structure, the time interval between the subband signals become longer, so the variation of the crosscorrelation between the stereo input signals becomes large. Consequentl...

Acoustic Echo Canceller White Paper

A Robust and Adaptive Line Echo Canceller

In the actual communication system, the line echo is a frequent problem, so the line echo canceller is necessary. Traditionally, the cancellers are designed according to line noises based on the Gaussian noise model. However, the noises do not obey the Gaussian distribution; therefore the performances of algorithms decrease, even cannot be used. In order to solve this problem, this paper propos...

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...