AEC echo suppression algorithm Buy

dfyd_1

AEC echo suppression algorithm Buy
I am using  DirectSound's AEC for XP and WASAPI which enables new AEC function for vista.
Now I want to know how can I do with echo cancellation in Windows Server 2003?
I need a basic acoustic echo cancellation module. Can anybody hear give me some links for the

c/c++ source code? I appreciate your help!

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