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Implementation of the LMS and NLMS algorithms for Acoustic Echo Cancellationin teleconference systemusing MATLAB

In hands-free telephony and in teleconference systems, the main aim is to provide agood free voice quality when two or more people communicate from different places.The problem often arises during the conversation is the creation of acoustic echo. Thisproblem will cause the bad quality of voice signal and thus talkers could not hearclearly the content of the conversation, even thought lost the important information.This acoustic echo is actually the noise which is created by the reflection of soundwaves by the wall of the room and the other things exist in the room. The mainobjective for engineers is the cancellation of this acoustic echo and provides an echofree environment for speakers during conversation. For this purpose, scientists designdifferent adaptive filter algorithms. Our thesis is also to study and simulate theacoustics echo cancellation by using different adaptive algorithms.

Identiferoai:union.ndltd.org:UPSALLA1/oai:DiVA.org:vxu-6368
Date January 2009
CreatorsNguyen Ngoc, Hung, Dowlatnia, Majid, Sarfraz, Azhar
PublisherVäxjö universitet, Matematiska och systemtekniska institutionen, Växjö universitet, Matematiska och systemtekniska institutionen, Växjö universitet, Matematiska och systemtekniska institutionen
Source SetsDiVA Archive at Upsalla University
LanguageEnglish
Detected LanguageEnglish
TypeStudent thesis, info:eu-repo/semantics/masterThesis, text
Formatapplication/pdf
Rightsinfo:eu-repo/semantics/openAccess
RelationRapporter från MSI, 1650-2647 ; 09087

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