For the LONGEST time, I had all sound going through my audio interface, but due to some current projects, I have rethought that, and now have the audio interface only used by Sonar, and Windows is set to use the on-board audio chip for all other applications.
The reason I have it set this way now is so that I can run songs through a program called The Amazing Slow Downer, while also having Sonar up and running, using the audio interface in ASIO mode.
By having both ASIO drivers (using the audio interface) set for Sonar, I get the horsepower of the audio interface for Sonar, and for the Amazing Slow Downer, it uses the on-board audio/
The above allows me to listen to song files with the on-board audio, where the Amazing Slow Downer lets me set loop points and also slow the playback WAY down without losing pitch, so that I can figure out really technically challenging lead parts for tunes.
The reason I do all of this is because I have a number of really cool progressive tunes I always wanted to play out, and I need to be able to figure them out.
Because ASIO allows only one application to have control, the above allows me to have two audio applications up and running concurrently.
Ta Da :)
Bob Bone