Connect several audio applications together in real time. VWindows multimedia driver which creates a "virtual cable" represented by two waveform devices, input and output, with internal link between them. Allows direct, untouched sound transfer between different applications. Useful to record application's audio output in real time, and save an output sound stream from applications that doesn't allow to write it into WAV file directly. VAC is a "wave-version" of the "MIDI loopback cable" like MultiMid or Hubi's Loopback drivers. Unlike Total Recorder allowing you to simply save audio stream, VAC allows to route it in real time.

Virtual Audio Cable is a utility that allows you transfer wave streams.
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.
VAC is useful to record applications audio output in real time (for example - Generator, Reality or other program synth), or transfer a sound stream to another software processing it. You can, for example, use two or more program audio generators/synthesizers/sequencors to produce audio streams sending them to VAC Out, and record the mixed stream from VAC In using any recording program - Windows Sound Recorder, Sound Forge, WaveLab, Cool Edit, Gold Wave, Cakewalk, Cubase etc.
You can use VAC to "thief" an output sound stream from the software that doesnt allow to write it into WAV file directly. Unlike Total Recorder allowing you to simply save audio stream, VAC allows to route it in real time.
Virtual Audio Cable Features:
1. Windows XP/2003/Vista/Win7 platforms (32-bit and 64-bit)
2. Local session only (not available from Remote Desktop).
3. Native WDM/KS audio technology.
4. Up 256 Virtual Cables (Windows limits number of MME devices to 32. Number of DirectSound devices is not limited). Trial version is limited to 3 cables only.
5. 1..20 milliseconds per interrupt.
6. 1..100 pin instances.
7. Almost any of fixed point PCM audio formats (200..1000000 samples per second, 8..32 bits per sample, 1..8 channels). Floating point formats are not supported.
8. Almost no sound latency with maximal interrupt frequency.
9. Unlimited number of clients connected to each port.
10. Signal mixing (with saturation) between output port clients.
11. PCM format conversion.
12. Volume control features.
13. Control Panel software to dynamically configure cables.
14. Audio Repeater software that transfers from any Wave In to any Wave Out port.

Limitations:
* The trial version is feature limited

The license of this software is Free Trial Software, the price is $30.00, you can free download and get a free trial.