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
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