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
Line Echo Path
Started by ●August 30, 2005
Reply by ●August 31, 20052005-08-31
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
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
