You can always import the sample (mind you they are quite buried in the BB RT folder - but the samples can be located) into a DAW and do either the volume envelope as GH pictured or even chop the sample down into individual notes if you wanted, remove those you don't and then replace the edited sample back into the BB RT folder. Ensuring the exact same name (including case) is used.

They are, after all, only WMA files and can be manipulated as such. Sonar can export WMA files, as can most other DAW's I would imagine.

Of course you would copy out the original to another location first wink