Animation call method track sounds bleed through when using blendspaces

[MrAlienBoi]

Godot version: 3.3 Stable

OS/device including version: Windows 10

Issue description:
When calling methods using keyed animation tracks, sounds would still register as blendspace value lerps resulting in looping effect.

Steps to reproduce:
Animation Player > Add track > Call method on animations to be used in a blendspace.
Setup the blendspace animation.
Setup the function to play the sound when animation is played.
Run.
Loop... loop... loop...

Minimal reproduction project:

[Calinou]

@MrAlienBoi Please upload a minimal reproduction project to make this easier to troubleshoot.

[MrAlienBoi]

@Calinou You'll be able to hear the loop when sneaking or in strafe mode which goes away after a few seconds.

Sound_Issue.zip

[TokageItLab]

I would like a minimal project as the project is too big to determine the issue.

Does it relate to #49099? It's true that MethodTrack doesn't adjust the volume, unlike AudioTrack, so if you want to adjust the volume with MethodTrack, you need to get the blend value and adjust the volume yourself.