Time Delay Estimation Algorithms for Echo Cancellation

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F11%3A00184937" target="_blank" >RIV/68407700:21230/11:00184937 - isvavai.cz</a>
Result on the web
<a href="http://dspace.vsb.cz/bitstream/handle/10084/84491/AEEE-2011-9-1-21-sakhnov.pdf" target="_blank" >http://dspace.vsb.cz/bitstream/handle/10084/84491/AEEE-2011-9-1-21-sakhnov.pdf</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Time Delay Estimation Algorithms for Echo Cancellation
Original language description
This case study describes how to eliminate echo in a VoIP network using delay estimation algorithms. It is known that echo with long transmission delays becomes more noticeable to users. Thus, time delay estimation, as a part of echo cancellation, is animportant topic during transmission of voice signals over packetswitching telecommunication systems. An echo delay problem associated with IP-based transport networks is discussed in the following text. The paper introduces the comparative study of timedelay estimation algorithm, used for estimation of the true time delay between two speech signals. Experimental results of MATLab simulations that describe the performance of several methods based on cross-correlation, normalized crosscorrelation and generalized cross-correlation are also presented in the paper.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
JA - Electronics and optoelectronics
OECD FORD branch
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Project
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Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)<br>S - Specificky vyzkum na vysokych skolach

Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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