Hi, I have been thinking. Would it be possible to record wave-out (or stereo-mix, whatever) while the wave-out is mute, and simultaneously play the recording and hear it. To clarify it further, the usage of such an app would be to correct the online streaming out-of-sync videos. The idea is to buffer ALL the sound from the PC and play it with a delay (user defined ofc). So, you see where the problem lies, the original wave has to be mute, but we have to hear the recording, and also the recorder must not record it's own output. Anyone has any thoughts, would that be even possible without hardware modifications?