acoustic echo cancellation problem
Detection-Guided Fast Affine Projection Channel Estimator for Speech Applications
... tic echo cancellation within teleconferencing systems, the in- put signal is speech or highly ...the acoustic echo cancellation ...
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Comparison of Independent Component Analysis techniques for Acoustic Echo Cancellation during Double Talk scenario
... Acoustic echo cancellation problem has been address by the researcher ...on echo cancellation using kurtosis with gradient and fast ICA ...implementation. Echo is a ...
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Efficient Fast Stereo Acoustic Echo Cancellation Based on Pairwise Optimal Weight Realization Technique
... ual echo, is too large and it depends on the transmission paths (due to inherent dependency caused by highly cross- correlated stereo input signals) ...nonuniqueness problem, which has earned recognition as ...
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Polyphase Allpass IIR Filters for Subband Acoustic Echo Cancellation
... The problem is the creation of acoustic echo. Acoustic echo occurs when an audio signal is reverberated in a real environment, resulting in the original intended signal plus attenuated, ...
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A Bayesian network approach to linear and nonlinear acoustic echo cancellation
... optimization problem and thus allow to identify the nonlinear-linear cascade in ...this problem is the so-called significance-aware EPFES (SA-EPFES) proposed in [19], where the NLMS algorithm (to estimate ...
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Subband Affine Projection Algorithm for Acoustic Echo Cancellation System
... adaptive acoustic echo cancellation with long echo path ...the acoustic echo canceller suffers from the long echo path and large computational ...this problem, the ...
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New Technique for Recursive Least Square Adaptive Algorithm for Acoustic Echo Cancellation of Speech signal in an auditorium
... and acoustic echo must be removed from the speech ...for acoustic echo cancellation of speech signal in an ...the echo and reverberation. In an auditorium speech, the echo ...
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Performance Analysis of Acoustic Echo Cancellation in Sound Processing
... This problem differs from traditional adaptive noise cancellation in that: - The desired response signal cannot be directly measured; only the attenuated signal is ...
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Efficient multichannel acoustic echo cancellation using constrained tap selection schemes in the subband domain
... this problem, two new schemes have been presented which perform tap selection by applying the M-Max criterion only across filter length (and thereby exploit temporal sparsity for updating each sub-filter) and do ...
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Design And Simulation Of An Acoustic Echo Cancellation System For Hand-Free Telecommunication
... the echo ( y(n) – ŷ(n) ) to be zero to obtain only near-end signal v(n) in the perfect ...In Acoustic Echo Cancellation, the most difficult problem is to handle with the situation of ...
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A nonparametric variable step-size subband adaptive filtering algorithm for acoustic echo cancellation
... of acoustic echo are inevitable, which may greatly affect speech quality and even cause discomfort for ...the problem in need of immediate solutions in communication systems is improving voice ...The ...
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Single-channel acoustic echo cancellation in noise based on gradient-based adaptive filtering
... difficult problem of acoustic echo cancellation (AEC) in single-channel scenario in the presence of ...AEC problem, the delayed version of the echo and noise suppressed signal is ...
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Analysis of Different Low Complexity Nonlinear Filters for Acoustic Echo Cancellation
... the problem of acoustic echo cancellation, where the digital filter employed has to identify as close as possible the acoustic echo path that is found to be highly ...The ...
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A Logic gate based Double Talk Detector for Acoustic Echo Cancellation
... The problem of dual talk is handled by double talk detectors which senses the double talk and stops the adaptive filter coefficient adaptation so that filter may not move away from the optimal ...
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A New Method for a Nonlinear Acoustic Echo Cancellation System
... - Acoustic echo cancellation (AEC) is a fundamental requirement of signal processing to increase the quality of ...linear echo cancellation had been ...to echo ...
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Acoustic Echo Cancellation by Adaptive Combination of Normalized Sub band Adaptive Filters by Using Stochastic Gradient Algorithm
... Abstract: Acoustic echo is a common occurrence in today’s telecommunication ...by acoustic echo is distracting to both users and causes a reduction in the quality of the ...unwanted ...
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Performance Analysis of Acoustic Echo Cancellation in Sound Processing N. Sakthi Bavatharani Dr. T. Ravichandran
... This problem differs from traditional adaptive noise cancellation in that: - The desired response signal cannot be directly measured; only the attenuated signal is ...
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Efficient Multichannel NLMS Implementation for Acoustic Echo Cancellation
... This problem can be reduced by setting a limit on the lowest rate of updates for a filter, that is, if filter m has not been updated for the last U samples it is forced to update the next ...the echo ...
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An overview on optimized NLMS algorithms for acoustic echo cancellation
... the problem, there are several specific features of AEC, which rep- resent a challenge for any adaptive ...the acoustic echo paths have excessive lengths in time (up to hundreds of milliseconds), due ...
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Analysis the results of Acoustic Echo Cancellation for speech processing using LMS Adaptive Filtering Algorithm
... the acoustic echo cancelling using adaptive filters. Acoustic echo canceller is necessary as the control of acoustical echoes is important to ensure comfortable conversation in hands free ...
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