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Audio crossfade/tail on transition (esp stinger)
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markz631  
#1 Posted : Tuesday, December 29, 2020 11:55:53 AM(UTC)
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I know similar requests have been made before, and that SetVolumeFade seems to be the answer, but I can't figure it out.

Currently when I use a stinger transition the audio cuts harshly. I know this is what it is supposed to do since the stinger uses a cut for the video transition, but it sounds terrible. What I am seeking is the following workflow:

A video with audio on PGM (e.g. that has a long tail for live VO)

**stinger transition** to live camera.

The audio from the video that was on PGM does not 'cut' over the stinger, but instead fades (over a controllable time).
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dmwkr  
#2 Posted : Tuesday, December 29, 2020 2:54:05 PM(UTC)
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To put you on the right track:
- Deactivate Automatically Mix Audio for your video (because you want to control the Audio individually)
- Deactivate Pause after transition (because you want the Audio to keep playing after your stinger/cut)
- Set triggers OnTransitionIn (AudioOn) and OnTransitionOut (SetVolumeFade). Also use a trigger to set the volume back to 100.

Do you get it to work?

There's also a solution in the Scripting for dummies post to kind of automate the workflow (do something at a specific time of the video) you could adjust for your needs.
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markz631  
#3 Posted : Wednesday, December 30, 2020 2:27:22 AM(UTC)
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Makes sense, but on #3 -- on which input(s) do the triggers go>
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dmwkr  
#4 Posted : Wednesday, December 30, 2020 2:45:14 AM(UTC)
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They also go on your video file input. The triggers replace the Automatically Mix Audio function.
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markz631  
#5 Posted : Wednesday, December 30, 2020 2:48:41 AM(UTC)
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So this needs to be added to ALL inputs on which I want this to occur? I was hoping there could be a global solution so that no matter what is in PGM, it does this when using a stinger (or really any transition).
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elvis55  
#6 Posted : Wednesday, December 30, 2020 4:47:12 AM(UTC)
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dmwkr  
#7 Posted : Wednesday, December 30, 2020 5:05:10 AM(UTC)
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Lots of possibilities, but no one-click solution...

- If you have your videos in a list, you only have to do it once.
- As a Stinger is nothing else than an Overlay, you could try to use the trigger OnOverlayIn on your Stinger input: SetVolumeFade, Active
- In the vMix Settings on the Options and Audio tabs, you can change the standard settings for new inputs regarding the checkboxes on the General tab of the input settings.
- If you are using shortcuts, you could build your own transition buttons with scripts.
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markz631  
#8 Posted : Wednesday, December 30, 2020 8:13:19 AM(UTC)
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Ah ha, thanks all! I think I have it figured out.

One of the issues (duh, FACEPALM) was that I had the pause after transitions box ticked in the PGM video, thus cutting the audio. So I unticked that box, made sure AFV is off, AUDIO is on, and have the following triggers goes on the input used by the stinger:

Trigger Function Input Value

OnOverlayIn SetVolumeFade Active 0,2000

OnOverlayOut Pause Preview

OnOverlayOut SetVolume Preview 100


The first lowers the volume to zero over two seconds.
The second pauses the video after the transition (otherwise if you raise it then it will still play on PGM.
The third resets the volume automatically.
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thanks 1 user thanked markz631 for this useful post.
james_kille on 2/19/2021(UTC)
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