Two Sound Mixing(Primary+Secondary into one audio track)

If you choose "(Default Sound Device)", "Microphone", and check the "Two Sound Mixing"option, a video with one audio track will be created. If you're not a video specialist, please check this "Two Sound Mixing" option.

Bandicam, Two Sound Mixing, checked

If you uncheck the "Two Sound Mixing" option, a video with two audio tracks will be created.

Bandicam, Two Sound Mixing, unckecked - Since Windows Media Player or YouTube does not support a video with two audio tracks, you will only hear one audio track of the computer sounds or the microphone sound.
- If you use VLC Media Player or POT media player, you must select a specific audio track to hear the computer sounds or the microphone sound.

play video with two audio tracks, VLC Media Player



If you use Bandicut, you can change two audio tracks into one audio track while keeping the original video quality. After opening a video file from Bandicut, select [1] or [2] as shown below, and choose the "Save only selected video and audio track" option to create a video with the audio you have selected.

save only selected video and audio track