[Speex-dev] Extracting Coefficients from the AEC

Cooper, Douglas A CIV NAVAIR, 4.6.2.3 douglas.a.cooper at navy.mil
Wed Jul 27 14:21:43 PDT 2011


Steve U.,

Thanks for the quick response. I will look into OSLEC for the Hybrid case. With regards to using the 
last known good set of coefficients for re-use, I am assuming that any changes in the echo path would 
be minimal to none (in the hybrid case of course) and therefore if my system was reset, only a small 
amount of convergence would be needed if at all. Of course I am basing my assumption on my small amount 
of knowledge on adaptive signal processing theory and am assuming that the filter is modeling the FIR 
response of the path and isn't necessarily dependant on the signal. This will be my first 
implementation of an echo canceller, so I guess I will soo find out:)

Thanks,

Doug C.

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