My guess. The way an audio signal flows through Band-in-a-Box and RealBand is different.

RealBand audio flows somewhat similar to a DAW which in turn is somewhat similar to an external audio mixer. The audio is routed in such a way that you can hear audio coming into the computer at the same time you can hear audio coming out of the computer. RealBand repeats your incoming audio and mixes the incoming audio with the computer generated audio.

Band-in-a-Box does not have the capability to repeat incoming audio while it is coming into the program. You record audio in Band-in-a-Box and you can not hear what is recorded until the recording is completed.

The difference in how the two programs handle audio means they also handle Kontakt audio output differently.

Jim Fogle - 2025 BiaB (Build 1128) RB (Build 5) - Ultra+ PAK
DAWs: Cakewalk Sonar - Standalone: Zoom MRS-8
Laptop: i3 Win 10, 8GB ram 500GB HDD
Desktop: i7 Win 11, 12GB ram 256GB SSD, 4 TB HDD
Music at: https://fogle622.wix.com/fogle622-audio-home