You can do this in Kontakt and you can probably do this in any sampler.

Or record your wavs and in RealBand put them where you want them. Note that I am not a heavy user of RealBand and if this isn't correct then someone please correct me. But I'm pretty sure that it can be done there. I'm sure it can be done in other DAWs also. I know it can be done in Sonar.

Whenever I get something stuck in the back of my throat, I dislodge it by drinking a beer.
It's called the Heineken Maneuver.

64 bit Win 10 Pro, the latest BiaB/RB, Roland Octa-Capture audio interface, a ton of software/hardware