

VAC version 4.0x is an upgraded version from 3.12. A computer PCI, Firewire or USB slot is not used.There are no external cables to degrade the sound quality or possibly pick up RFI.The entire audio stream is maintained in the digital domain - there is no multiple conversions of the signal from digital to analog and from analog to digital.


There are some significant advantages to using VAC over a second sound card. Virtual Audio Cable (VAC) is a third-party software program that allows the rerouting and the emulation of a sound card in software rather than having to use a second sound card for audio analysis or use with digital mode programs such as MixW and WSJT.
