[wdmaudiodev] Re: Solution for MSVAD loopback interface

  • From: Justin Holleb <jholleb@xxxxxxxxx>
  • To: wdmaudiodev@xxxxxxxxxxxxx
  • Date: Wed, 15 Dec 2010 05:04:08 -0500

Maybe you're thinking of DRM disabling the capture functions in WASAPI.
There are many consumer sound cards with "Stereo Mix" or "What U Hear"

On Wed, Dec 15, 2010 at 4:54 AM, Mike Kemp <mjk@xxxxxxxxxxxx> wrote:

> Hi. This might be irrelevant or wrong, but I recall reading that as part of
> digital rights management (DRM) enforcement Microsoft makes it impossible to
> access audio from an output e.g. to route it to an input, except in a
> suitably signed driver. I'd be interested to know if I'm wrong here. M
> ----- Original Message ----- From: Justin Holleb
> To: wdmaudiodev@xxxxxxxxxxxxx
> Sent: Wednesday, December 15, 2010 9:44 AM
> Subject: [wdmaudiodev] Solution for MSVAD loopback interface
> I am having trouble sending the data from the output pins into the input
> pins. I want to be able to capture system sounds using MSVAD as the capture
> source. I've tried using rtlcopymemory to send the buffer from copyto to
> copyfrom, but I just got silence. Has anyone implemented MSVAD in this
> fasion? What are the changes that need to be made?
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