scheduled start/stop recording option:
Actually, our solution is better than the normal scheduling recoding by time. You can click the start recording button at any time and VAS (VirtualAudioStreaming) will only start recording when your computer really starts playing sounds.
Anyway, we may consider adding the traditional time scheduling recoding in the future release.
automatically break the recorded files into timed intervals (i.e. a new file is created every 30 minutes)
VAS automatically splits the recorded files intelligently. For example, you click start recording, wait 1 minutes, then play a song, wait 1 minutes, play another song. The result is you will get two wav files for the two songs, no beginning and ending silence in them. What's circumstance you need to split files every 30 minutes? If it is a must-have feature, we may consider adding it.
listening in to the audio stream in real time even as it is being recorded:
Yes. Of course, you can. See our VAS online help or search posts here, you will easily find how to configure this.