Question / Help How to record multiple audio tracks and import them in reaper as multitrack file?

[germanocarella]

Hi to all,
I searched on google, but I'm unable to solve this problem.
I want record a video that have my voice and background music in separated audio tracks.
So, I selected advanced in output tab of options, set video format to .mov, and activated all tracks I needed.
I added 2 sources: audio capture, and multimedia source. Audio capture is on track 1 and multimedia source is on track 2.
Finally I recorded and saved mov file.
If I open this file in vlc media player, there are 2 tracks but they don't play simultaneously: I can switch track 1 to track 2..
When I import this mov in reaper, I can see only track 1.
There is a way to record 2 tracks, play them simultaneously and split them in reaper?
Unfortunately I'm visually empaired, there are some videos, but I'm unable to understand these videos.
Thanks!

 

[koala]

Every media player will play one single track only. You can switch between tracks, but no media player will mix tracks. Audio Tracks are usually meant for different languages, so it makes no sense to mix and output multiple tracks simultanously.

If you want to choose between a mixed version (for listening) and single versions (for postprocessing separately), write one track with all your audio sources mixed and additional tracks with only one source. This way you can listen to the mixed track with your media player and use the additional tracks with your postprocessing software.

You are able to configure this in the advanced audio properties of OBS like this:

I don't know if or how you can read this screenshot if you are visually impaired, so I try to explain:
On the right side of the "advanced audio properties" dialog you have a matrix with check boxes. You are able to check which audio source goes out to which audio track. For track 1, check every source, so every source will be mixed and written to track 1. Additionally, check track 2 for source 1, track 3 for source 2, track 4 for source 3 and so on, so the sources will be written to the corresponding track as only source. These can be used for postprocessing.

I propose you use the *.mkv format for a multi-track audio video. If your postprocessing software doesn't support mkv, go to OBS Settings->Advanced->Recording and check "Automatically remux to mp4 (record as mkv).