Total Recorder Virtual Sound Driver SDK (Software Development Kit}.
Software Development Kit that can be imbedded into applications that must monitor, capture or modify the output sound stream to the sound card.
This virtual sound driver is used by Total Recorder and may be used by other sound recording applications that may have licensed it's use.
1. Contol Panel > Sound and Audio Devices > Audio Tab. Select a different Default Recording Device when it is not being used or before shut down.
2. Check the Advanced settings for that device.
3 Uninstall or reinstall any sound recording software that may be using this virtual sound driver.