Virtual Audio Cable
Virtual Audio Cable is a multimedia driver designed to connect one or more audio applications in order to transfer audio streams between them.
This software tool introduces the 'virtual cables', which refer to a set of virtual audio devices containing input and output ports. Practically, the input port records the audio signal (from a music player, for example) and sends it to the destination program (such as a sound processor or analyzer) using the output port.
Seemingly simple, yet tricky options
Once you install the driver, you are able to access its control panel in order to configure the working parameters. While the customizatin process might seem easy due to the organized interface, making the application work is quite a challenge. Therefore, before starting, it is strongly recommended to go through all the documentation carefully.
Add and examine cable information
Some of the displayed parameters concern the driver, while others refer to each cable. The first item you can change is the number of virtual cables created by the program. Adding a new one displays a new item in the monitoring pane. You can view the number of detected streams and change the worker thread number and priority.
Personalize some advanced settings
On the other hand, there are various other parameters to configure for each cable. Setting the maximum instances number, the sampling rate and bits per sample range and the channel number are just some of the options that you can modify according to your preferences. You can also enable the stream buffer watermark, volume control, as well as channel mixing.
When the configuration process is over, you need to open an audio producing program that allows you to choose a playback device. The Audio Repeater application is the one that does the actual transfer, from the recording port to the other audio device. If more than one application sends audio streams to Virtual Audio Cable, the driver mixes the signal together.
Although it can be definitely qualified as hard to use, Virtual Audio Cable promises to pass the audio signal with no quality loss and can prove handy once you get the hang of it.