Originally Posted by jazzutako
Since it doesn't make the noise in BB2018, if I use the same Realdrums as BB2018,
then it wouldn't make the noise, I thought.
I'm pretty certain the difference you're hearing is due to improvements in the pitch stretching engine, or settings related to that. The 2018 version likely doesn't exhibit the "noise" because the sound of the brushes is being heavily altered by the lower quality pitch stretching in the older version, while the newer version is better and more accurate.

It's similar to buying a new car and finding that it "shakes" when you drive it on certain roads - the problem isn't the new car, it's that the newer tighter suspension lets you "feel" the road more while the old car is softer (worn out) by comparison.

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