'Multiple Sound Recording' is used for a special purpose like Skype recording
(You don't have to use 'Multiple Sound Recording' for a normal recording.)
To record Multiple Sound, choose both "Primary device" and "Secondary device"
=== Examples ===
1. Windows XP user
1) Primary device: Choose 'Primary Sound Card Driver' and Click 'Setting' button, then enable 'STEREO MIX'
See
http://www.bandicam.com/faqs/no_sound_r ... x_problem/
2) Secondary device: Choose 'Your sound card (Realtek, Soundblaster, and etc.)' and Click 'Setting' button, then enable 'Microphone'
http://www.bandicam.com/faqs/how_to_rec ... icrophone/
2. Windows 7/Vista user
1) Primary device: Choose 'WASAPI Sound'
2) Secondary device: Choose 'Primary Sound Card Driver' and Click 'Setting' button, then enable 'Microphone'.
We will improve the 'secondary sound device' recording.
Best Regards,
Bandicam