This might help.....
http://spider.nrcde.ru/music/software/eng/vac.html
http://w4.evectors.it/itentdirectory/topic?topic=skype&chunck=1 (fifth post from the top)
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Following links from Stuart about running multiple Skype instances I came across the Skype Forums where people are talking abut how to run multiple instances of Skype, but also streaming Skype conversations into other VOIP and Net2Phone services using a nifty gadget called a Virtual Audio Cable.
Virtual Audio Cable is a Windows multimedia driver allowing you to transfer audio (wave) streams from one application to another. It creates a pair of Wave In/Out devices for each cable. Any application can send audio stream to Out device, and any other application can receive this stream from In device. All transfers are made digitally, providing NO sound quality loss.
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If more than one applications are sending audio to VAC, it will mix all streams together. If more than one applications are receiving audio from VAC, it will share the same audio data between all targets.
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VAC is useful to record application's audio output in real time (for example - Generator, Reality or other software synth), or transfer a sound stream to another application processing it. You can, for example, use two or more software audio generators/synthesizers/sequencors to produce audio streams sending them to VAC Out, and record the mixed stream from VAC In using any recording software - Windows Sound Recorder, Sound Forge, WaveLab, Cool Edit, Gold Wave, Cakewalk, Cubase etc.
This opens up all sorts of interesting possibilities like running a stream from a Skype conference to an internet radio broadcast. Very cool.
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