Is there's a software that runs in the background or something and whenever no sound is detected, launch an application?
To explain: how to check sound card usage? if no app is currently using sound card, then do 'this', else simply keep running in the background.
I guess something that checks every minute or so...
OS: Windows 7 Home.
playback, orcapture. Playback is when audio applications are trying to play audio back through the speakers. Capture is when a microphone or other input device provides audio TO the computer. You can theoretically do both, but what you want sounds to be so custom that you'd probably need to write a custom application to begin with. – allquixotic Aug 20 '12 at 18:21