Gradient Based Adaptive Algorithm for Echo Cancellation from Recorded Echo Corrupted Speech
Joint Authors
Fattah, Shaikh Anowarul
Mahbub, Upal
Source
Advances in Electrical Engineering
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-06-11
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
An offline single channel acoustic echo cancellation (AEC) scheme is proposed based on gradient based adaptive least mean squares (LMS) algorithm considering a major practical application of echo cancellation system for enhancing recorded echo corrupted speech data.
The unavailability of a reference signal makes the problem of single channel adaptive echo cancellation to be extremely difficult to handle.
Moreover, continuous feedback of the echo corrupted signal to the input microphone can significantly degrade the quality of the original speech signal and may even result in howling.
In order to overcome these problems, in the proposed scheme, the delayed version of the echo corrupted speech signal is considered as a reference.
An objective function is thus formulated and thereby a modified LMS update equation is derived, which is shown to converge to the optimum Wiener-Hopf solution.
The performance of the proposed method is evaluated in terms of both subjective and objective measures via extensive experimentation on several real-life echo corrupted signals and very satisfactory performance is obtained.
American Psychological Association (APA)
Mahbub, Upal& Fattah, Shaikh Anowarul. 2014. Gradient Based Adaptive Algorithm for Echo Cancellation from Recorded Echo Corrupted Speech. Advances in Electrical Engineering،Vol. 2014, no. 2014, pp.1-7.
https://search.emarefa.net/detail/BIM-504867
Modern Language Association (MLA)
Mahbub, Upal& Fattah, Shaikh Anowarul. Gradient Based Adaptive Algorithm for Echo Cancellation from Recorded Echo Corrupted Speech. Advances in Electrical Engineering No. 2014 (2014), pp.1-7.
https://search.emarefa.net/detail/BIM-504867
American Medical Association (AMA)
Mahbub, Upal& Fattah, Shaikh Anowarul. Gradient Based Adaptive Algorithm for Echo Cancellation from Recorded Echo Corrupted Speech. Advances in Electrical Engineering. 2014. Vol. 2014, no. 2014, pp.1-7.
https://search.emarefa.net/detail/BIM-504867
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-504867