Virtual Audio Cable
is designed to connect several audio applications in real-time. Its role is a "virtual cable" (represented by input and output devices which are connected with each other) to transfer a sound from an application to another. The transfer is direct without retouch. For example, when an application sends an audio stream to a virtual cable, other applications are recording that stream. Therefore, you can record and treat the stream by any audio application. It is ideal to record an output sound from the application which does not allow a direct record of WAV format.