Stereophonic acoustic echo cancellation: analysis of the misalignment in the frequency domain
نویسندگان
چکیده
منابع مشابه
Stereophonic acoustic echo cancellation
This paper presents a new approach for Stereophonic acoustic echo cancellation (SAEC), based on a combination of J-H network and the natural gradient algorithm. In the new approach for SAEC, Computer simulations show that echoes are significantly reduced. Disciplines Physical Sciences and Mathematics Publication Details Ge, F., Premaratne, P. & Xi, J. (2005). Stereophonic acoustic echo cancella...
متن کاملStereophonic Acoustic Echo Cancellation: Theory and Implementation
The thesis treats theory and implementation aspects for stereophonic acoustic echo cancellation. In Paper I a complete implementation of a stereophonic acoustic echo canceler based on the two-channel fast recursive least-squares algorithm is presented. An analysis of the system calculation complexity is also given, in addition to simulation results on recorded real-life data. Paper II presents ...
متن کاملState of the Art of Stereophonic Acoustic Echo Cancellation
This paper presents the state of the art of stereophonic acoustic echo cancellation (SAEC) in terms of theoretical results and practical considerations that has to be made when implementing SAEC algorithms. The fundamental difficulty of SAEC is described and an echo canceler based on a fast recursive least squares algorithm in a subband structure is proposed. Results from real life off line exp...
متن کاملFrequency Domain Adaptive Algorithms for Stereophonic Acoustic Echo Cancellation Employing Tap Selection
The use of a tap-selection approach for stereophonic acoustic echo cancellation in frequency domain adaptive algorithms is investigated. We first provide an analysis showing how the exclusive-maximum (XM) tap-selection scheme can improve the conditioning of the covariance matrix, hence improving convergence performance. We then show how the XM tap-selection can be extended to the frequency doma...
متن کاملStereophonic acoustic echo cancellation using nonlinear transformations and comb filtering
Stereophonic sound becomes more and more important in a growing number of applications (such as teleconferencing, multimedia workstations, televideo gaming, etc.) where spatial realism is demanded. Such hands-free systems need stereophonic acoustic echo cancelers (AECs) to reduce echos that result from coupling between loudspeakers and microphones in full-duplex communication. In this paper we ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IEEE Signal Processing Letters
سال: 2006
ISSN: 1070-9908
DOI: 10.1109/lsp.2005.860545