I'm trying to record some karaoke but every time I play back the recorded track, the music is "doubled" with a slight delay, as if the laptop's built-in microphone was picking up the music along with my voice. Here is an example: http://www.singsnap.com/karaoke/watchandlisten/play/c58ef46c3 Notice how those staccato notes are doubled with that slight delay. I'm using Windows 7 on a Dell laptop with Realtek. Under Playback I have two devices: Loudspeaker (enabled) and Realtek Digital Output (disabled) Under Recording I have: Microphone (enabled) and Stereomix (disabled) I'm recording using headphones and the laptop's built-in microphone. This is what the Realtek Audio Manager looks like: It's in German but most options are self-explanatory. If you could help I'd be very grateful. Thanks for reading.