[Speex-dev] AEC in speex

Anup KC anupkc at emuzed.com
Mon Sep 5 06:27:37 PDT 2005


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. Is this expected ? if yes will this not increase the
complexity of operation considerably ?

Is there any document which answers these querries ?


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