Audio issue with multiple units

[DigitalRails]

Hi,
I think everyone is aware of the problem when we use multiple units & the sound frequency do not match.
Here is a sample video - https://vimeo.com/392817536
Is there anything I can tweak in blueprints to avoid this?
My own custom locomotive also face the same issue.
Thanks

[bnsfsubdivision]

Not the frequency, it's the pitch. Under "Pitch shift variation" put in a value of 0.015-0.03 . That should solve your problem.