Line Echo Path | Echo Cancellation

Technical discussions about echo cancellation and adaptive filtering in general.

Hi All, Is there any tool avaiable in Windows platform that can decribe the line echo path? I like to check if the echo path change during the connection in the 2 wire to 4 wire hybrid. Since I am not the developper of EC library, I have no way to access the internal state and coefficient of EC, so I need a tool that can tell for example impluse response based on the near end and far end input data. Thanks a lot! Regards, William

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the tool is called matlab. or scilab - a free one. send known white noise (1..2 seconds) to hybrid, record its response, and run x-correlation or tfe, impz, etc. regards, michael. --- zhang_zhh@zhan... wrote: --------------------------------- Hi All, Is there any tool avaiable in Windows platform that can decribe the line echo path? I like to check if the echo path change during the connection in the 2 wire to 4 wire hybrid. Since I am not the developper of EC library, I have no way to access the internal state and coefficient of EC, so I need a tool that can tell for example impluse response based on the near end and far end input data. Thanks a lot! Regards, William --------------------------------- __________________________________________________________ Find your next car at http://autos.yahoo.ca

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Discussion Groups | Echo Cancellation | Line Echo Path

Line Echo Path - zhan...@yahoo.com - Aug 30 12:54:00 2005

Re: Line Echo Path - mike ts - Aug 31 13:11:00 2005