search for: daptat

Hi I was trying out the AEC in speex. It would be helpful if some of you can answer these querries 1.After the error values are computated in teh daptation process a check -if filter is completely mis-adapted - is performed. How could you explain the criteria used for this check. 2.what exactly is meant by over-cancellation and under-cancellation ? 3.Also it was seen that without the speex_preprocess call the output quality is very much differnt....