Selecting "All" Audio Tracks from a file only plays/uses the first track

Help/How To
1

Hi, I’m using Nvidia ShadowPlay to record game videos, and I have it set to create a separate audio track for my microphone.
When I add a video to the timeline, I can see both audio tracks under Properties → Audio. However selecting the option “All” still only plays the first audio track. Is this a bug or am I doing something wrong? I had to select “Detach Audio” and then select the other audio track on the properties of the video to get Shotcut to play/use both…

I’m using Shotcut version 21.09.20 on Windows 10 Pro 21H1 19043.1288

2

It is working, but not as you expect. This does not mix the channels but rather stacks them without down-mixing to the Settings > Audio Channels. In other words, if you have 2 stereo audio tracks, choosing All gives you 4 channels. However, if you leave your Settings at 2, then the last 2 channels are dropped. You would have to switch Settings > Audio Channels to 6 to hear them all. Look at my audio peak meter for an example:

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What you have done is better as you can control the mixing with Gain filters on each track.

3

So they way I’m doing it is already the best way? (I do indeed adjust track volumes to match my microphone and the system sounds/other people.)

Is there any way to simplify this process? Like, that when you add a video with multiple audio tracks that it automatically adds/displays the second audio track from the file as a separate audio track in Shotcut?

And one side question, is it possible to automatically have Shotcut pre-select a certain export preset of my choice upon starting the application? I hate it when I export something only to realize afterwards that I forgot to change the export preset from Default…

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