A low-complexity echo canceller performing the channel phase acquisition

1986 ◽  
Vol 34 (1) ◽  
pp. 200-202
Author(s):  
M. Bonnet ◽  
O. Macchi
Keyword(s):  
Low Complexity ◽  
Echo Canceller

An Improved Echo Cancellation Algorithm with Low Computational Complexity

2013 ◽  
Vol 303-306 ◽  
pp. 2042-2045
Author(s):  
Ya Ting Wu ◽  
Y.Y. Zhao ◽  
Fei Yu
Keyword(s):  
Return Loss ◽  
Linear Prediction ◽  
Low Complexity ◽  
Echo Cancellation ◽  
Echo Canceller ◽  
Convergence Process ◽  
Speed Up ◽  
Echo Return Loss Enhancement ◽  
Active Detection ◽  
The Voice

A low-complexity echo canceller integrated with vocoder is proposed in this paper to speed up the convergence process. By making full use of the linear prediction parameters retrieved from decoder and the voice active detection feature of the vocoder, the new echo canceller avoids the need to calculate decorrelation filter coefficients and prewhiten the received signal separately. Simulation results show performance improvement of the proposed algorithm in terms of convergence rate and echo return loss enhancement.

A Low-Complexity Acoustic Echo Canceller

2006 ◽  
Author(s):  
Haijun Hu ◽  
Mangmang Lin ◽  
Zhijun Zhang ◽  
Hui Li ◽  
Peng Yi
Keyword(s):  
Low Complexity ◽  
Echo Canceller ◽  
Acoustic Echo

Adaptive Echo Cancellation Combined with Delay Estimation

2013 ◽  
Vol 303-306 ◽  
pp. 2072-2075
Author(s):  
Zhi Ping Zhang ◽  
Xi Hong Wu
Keyword(s):  
Adaptive Filters ◽  
Signal To Noise Ratio ◽  
Low Complexity ◽  
The Other ◽  
Echo Cancellation ◽  
Delay Estimation ◽  
Delay Compensation ◽  
Echo Canceller ◽  
Signal To Noise ◽  
Echo Delay

This paper proposed an echo canceller to reduce the computational complexity of the long delay echo cancellation. Two adaptive filters were used for constructing this echo canceller. One was designed as a delay estimator, which used down-sampled sub-band signals to estimate the echo delay time. The other was designed as a short-tap filter to subtract the echo from the recorded signal with delay compensation. Experimental results showed that the output signal-to-noise ratio from the proposed canceller with low complexity is similar to that from the conventional canceller based on a long-tap filter.

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