The sound I'm talking about is what I think is a timpani that is being tuned upward in real time somehow.
In real life there are two ways I can think of that might have worked, one would be to hit the skin and adjust the tuning pegs on the side of the drum at the same time.
The other would be raise the pitch by hitting the skin and pressing down on the skin with another stick at the same time.
Either way I would love to know how to create the effect in a drum vst but so far my attempts have failed.
I tried using a tuning envelope in BFD2 but the tuning doesn't seem to effect the pitch once the skin has been been hit which I guess makes sense so I'm thinking it probably can't be done that way.
I tried using the frequency shift effect in BFD2 but it changes the whole tone and resonance and sounds too artificial.
Anyway, the sound I'm trying to recreate is in this classic Tiny Tim track at 0.52.
Anyone who's seen old tom & jerry cartoons or carry on films or any bawdy slapstick comedies of the 60's and 70's should recognise it as soon as they hear it
Here's the song
Tiny Tim - Living In The Sunlight Steve