How to Creat a Virtual Audio Capturing Device

Question

How can i create a virtual audio capturing device?

I want to do some processing for echo cancellation for a flash application.

Only way to use my processing is to show an audio device to a flash player.

Internally i want to use the default audio capturing source as a source and use some echo cancellation filter after it.

I don't know whether its possible or not.

Any help will be greatly appreciated.

Answer 1

It's not possible in DirectShow.  You will need to write a Virtual Audio Device (VAD) and do the echo cancellation processing internally.  See the Windows DDK for a VAD sample \src\audio\msvad

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Answer 2

Thanks

Chris P