Hi Juan,
Other Andy here. As you want to use two different audio recordings for your source, the best way I can see this working is to import the second track and manually align the sync to the first track, but not under your multicam clip.
Instead I would go to the angle editor, select one of the two audio tracks that you want to use, then select “Open in timeline” and open it. Then drag the other audio track that you want to use into the timeline underneath the first track. Then manually sync them.
When I edit two separate audio channel recordings I sweeten the sound and make any other adjustments in the opened timeline, as above (ie. in the opened timeline within the angle editor).
When recording wide dynamic range speech that needs to be heard on the small speakers of mobile devices (such as multiple speakers during church sermons, using a hand mic and a lapel mic) my favourite filters are the Gain (which if needed, I add first, but I only if I need more than the 20db of gain, that the following filter provides). I then add the Limiter filter, which provides a maximum of 20db of gain. With the right settings, this compresses the audio beautifully.
At this stage I also mute any sections of audio that contain unwanted stuff, such as room echo, coughs, babies crying etc. This completes the audio sweetening and when I go to the multicam clip to edit the video I don’t have to do anything more to the sound.
I learned this from Larry Jordan’s training videos. Hope it is useful.
Andy Wilson.
Thanks
Andy Wilson