Nonlinear Acoustic Echo Cancellation Using Volterra Filtering with a Variable Step-Size GS-PAP Algorithm
نویسندگان
چکیده
In this paper, a nonlinear acoustic echo cancellation (AEC) system is proposed, whereby 3rd order Volterra filtering is utilized along with a variable step-size Gauss-Seidel pseudo affine projection (VSSGS-PAP) algorithm. In particular, the proposed nonlinear AEC system is developed by considering a double-talk situation with near-end signal variation. Simulation results demonstrate that the proposed approach yields better nonlinear AEC performance than conventional approaches. Keywords—Acoustic echo cancellation (AEC), Volterra filtering, variable step-size, GS-PAP.
منابع مشابه
Nonlinear Active Noise Control Using Volterra Filtering with a Variable Step-size Gs-pap Algorithm
In this paper, a nonlinear active noise control (ANC) is proposed using adaptive Volterra filtering with a variable step-size Gauss-Seidel pseudo affine projection (VSSGSPAP) algorithm. In particular, it requires a lower computational burden than the VSS affine projection (VSSAP) algorithm, and provides an improved convergence as the VSSAP algorithm does. Simulation results show that the propos...
متن کاملDecoupled Second-order Volterra Filter Structure Using the Nlmf Adaptive Algorithm for Nonlinear Acoustic Echo Cancellation
The paper proposes a nonlinear acoustic echo cancellation setup based on a decoupled scheme of the second-order adaptive Volterra filter. The acoustic distortions that take place in the Loudspeaker-Enclosure-Microphone setup are modeled using measured linear and quadratic Volterra kernels. The adaptation of the filter weights is achieved by exploiting the Normalized Least-Mean-Fourth algorithm....
متن کاملThe Variable Step-Size Gauss-Seidel Pseudo Affine Projection Algorithm
In this paper, a new pseudo affine projection (AP) algorithm based on Gauss-Seidel (GS) iterations is proposed for acoustic echo cancellation (AEC). It is shown that the algorithm is robust against near-end signal variations (including double-talk). Keywords—pseudo affine projection algorithm, acoustic echo cancellation, double-talk.
متن کاملAcoustic Echo Cancellation Using Modified Variable Step Size Least Mean Square Adaptive Algorithm
this paper is focused on implementation of acoustic echo cancellation using modified variable step size least mean square algorithm (MVSSLMS) in LabVIEW. Simulation experiments are done to measure its performance and compared with other conventional variable step size algorithms. Results show better performance of MVSSLMS over other algorithms in terms of echo return loss enhancement (ERLE), es...
متن کاملAudio Quality Improvement of Vehicular Hands-Free Communication Using Variable Step-Size Affine-Projection Algorithm
For a vehicular hands-free communication system, the sound quality of communication is usually degraded by noise which is known to be detrimental to system performance. In this paper, a novel adaptive filtering algorithm and an integrated system for acoustic echo and noise cancellation are presented. The proposed system includes adaptive noise cancellation, line enhancer, and echo cancellation ...
متن کامل