[wdmaudiodev] Re: Replace WaveRT stream data?

  • From: Tim Roberts <timr@xxxxxxxxx>
  • To: wdmaudiodev@xxxxxxxxxxxxx
  • Date: Mon, 10 Dec 2007 10:27:34 -0800

WDM Audio wrote:
> Is it possible to replace input stream data under WaveRT?
> For example:
> There is an onboard codec, and I record from other sound input device
> (e.g. USB Audio), then put USB audio data to onboard codec stream.
> At latest, the recorder program will receive data which come from USB
> audio device.

How do you expect to get the USB data to the onboard codec, electrically

If this is a WaveRT codec that acts like filter, where it accepts
unencoded data and returns the encoded data, then you can do this with a
normal  user-mode audio graph.  Connect the USB audio input source to
the codec's input stream, and read the result from the codec's output

However, if the codec is just an internal part of an audio input device,
then there is no way for you to feed data to the codec.  The on board
paths are wires that you cannot tap into.

Tim Roberts, timr@xxxxxxxxx
Providenza & Boekelheide, Inc.


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