How to create a virtual audio device and stream audio input with it

Question

Is it possible to create another audio device and redirect only wanted input streams to it?

Here's my concrete problem:

I am broadcasting a game via XFire and it uses the Windows audio device to capture any audio I receive. As I am broadcasting, other users who watch the video stream are communicating with me over Skype, and they hear themselves back within the video stream and it is entirely logical since I am broadcasting the audio I hear.

What I want to do is create another audio device within Windows and redirect (pipe) ONLY the audio input from that game and not the input reveived from Skype. I would then tell XFire to use that newly created "virtual" audio device to broadcast and therefore my partners won't hear themselves back.

Is there any software that can do that or can it be achieved natively with Windows? (I am under Windows 7).

Answer 1

Give a try to Virtual Audio Cable. It creates virtual audio cards and let you route sound from outputs to inputs using virtual cables.

It runs with Windows 7. It's not free but there is a trial version, so you can check if it can do what you need.

Answer 2

Virtual Audio Streaming worked for me without that silly "Trial" speech in the middle of my recording.

Virtual Audio Streaming can record ALL sounds that played from your computer. It is done by our kernel-mode virtual audio card driver to ensure the recording quality

Hope this helps if you're still looking for this!

_{alternativeto.net is a great resource for alternatives to software like this. I wanted to do the same thing as you, so that I could record an MP3 as a voicemail for Google Voice. With that site I found this software that functions essentially the same as Virtual Audio Cable.}

Answer 3

https://github.com/rdp/virtual-audio-capture-grabber-device is my attempt at one. Free! :) see also ffsplit which may have something similar.