Honestech VHS to DVD 5.0 Deluxe - Manual (Page 75)

75. VHS to DVD 5.0 Deluxe
Audio Recorder (specific)
Distorted audio:

Lower the computer volume using volume buttons on keyboard or slider from system tray.
(this will not effect the recording volume)

Lower the audio player volume to avoid overdriving the computer sound card.

Lower the recording volume using the Recording Volume slider.
Low audio:

If recording from a turntable, connect it to an amplifier or stereo receiver first, then
connect the amplifier or receiver to the capture device.

Adjust the recording volume level using the Recording Volume slider.