Fix DAR mode 'Stop/New Recording at Silent'

I noticed an odd problem using DAR mode. This allows you to either pause, stop, or stop the current recording track and start a new track once it detects silence. My issue is with the latter. While it seems to work well (tested it on classical pieces with lots of silent parts) I noticed it would record a separate track of space. As an example:

1. Track #1
2. Couple seconds of silence
3. Track #2
4. Couple seconds of silence
5. Track #3