How to edit video with a third audio channel I've just started using blender to edit videos (a site recommended it out of a list of free video editors), and for the recordings, I've been using a third audio channel to help separate my speech from the rest of the audio. However I'm not sure how to edit it in blender and i haven't found any tutorials on how to do this. Is there a way in blender or would I have to use another program to edit the audio?

EDIT: to clarify, when recording, my voice is recorded into a third audio channel along with the usual left and right channels in the video file. this was so I could edit out background noises (or me coughing in some cases) without having to mute all sound.
For now i'm using a "push to talk" button to reduce background noise
You added information to your original question. It's not so important how many audio channels the video has in your scenario, you want to drop the volume of one of the audio tracks for a cough/sneeze/burp you can keyframe the volume of a track.




view the audio track as an audio waveform
set keyframes at the appropriate places. A sane volume range is between 0.0 and 1.0