I think you may open VAS(VirtualAudioStreaming) and click its recording button. Then you can go away from your computer and keep VAS in recording status. All the radio programs and sounds from your computer will be recorded and saved in seperate wav files. Our VAS automatically detects sounds, if there is no sound, no data is recorded. This feature can greatly save your disk space and make VAS work the same way as scheduling.
See also the similar post below:
Scheduling recordingRecord audio/radio automatically when you are asleep