Hi. Do you know a (Windows) program which can record sound input and output (i.e. mic-in and headphones jack) simultaneously (for e.g. a voice recording of a telephone call) ? Thank you.
Then plug one device into left, and the other into right.
What "other device" ? I have just one device - the mic. I can plug the splitter into the mic-in jack and the mic into one of the two jacks of the splitter. But how do I record the sound output (e.g. incoming VOIP call) ? Don't tell me to feed the headphones jack right back into the remaining jack of the splitter ... that would create a feedback loop or at least an echo, won't it ?