

Record Calls on Skype, Yahoo, or similar instant messenger programs.Play Music from two media players and use two different virtual speakers and then record it.The difference is you will get better quality here. It is the same as if you were recording online audio using your real speakers as your output and mic as input. Audacity records the sound from this virtual speaker. The audio from your friend is streamed to Line 1, which is a virtual speaker. Make sure to close Windows Media Player else it will mix both the sounds. Keep the messenger settings the same, but in Audacity, you need to change PlayBack Device to preference to Line 1 (Virtual Audio Cable). This method is useful if you want to record what your friend is speaking. Stream What Your Friend Is Saying to a Virtual Speaker and Record It Using Audacity

Since this is virtual and not a physical mic, it will be noise-free. When you play a piece of music from Windows Media Player, it is streamed out using Line 1 Audio and captured by Mic 1 Audio to the messenger. In Microphone select Mic 1 (Virtual Audio Cable).Now Launch Yahoo Messenger and Go to Preferences > Video and Voice.Change the speaker choice to Line 1 (Virtual Audio Cable).Press Alt and Go to Tools > Options >Devices > Speakers Play Music on Your Windows Media Player and Stream It to Messenger You need to figure out to configure speaker and microphone settings for those apps.

It works almost the same way for any other software. Here is an example using Windows Media Player and Yahoo messenger.

For example, if your friends want to listen to music over messenger or Skype. Sometimes you require to use audio of one program to be used by another application.
