I am relatively new to Cubase, and I had this issue as well when warping a bass track. I would receive the message “realtime algorithm has been deactivated because pitch or stretch factor lies outside the limits of the current preset” and my audio would not match the waveform I saw in my sample editor. I, too, thought this was a bug and agree with others that the display in the sample editor should change to alert the user somehow.
I don’t know if this will help other newbies, but here’s what I did to fix without a lot of hassle/workarounds:
- *Check my warps for extreme time changes. I had a few sections where the bass guitar string was stopped, and I wanted a sustain to the next note. Thus, I warped the audio at the end of the note to the start of the next note leaving the smallest possible gap between notes.
*When locating the extreme changes, move them back to a position that was closer to the original time position.
*Do this for all extreme changes until the error message disappears. You can also hit the “reset” button to reset all warp changes (this is what I did).
*Now go to one of the changes you want to make and move it a little bit at a time toward your desired position, checking for the message to appear again. When it appears, retract in the timeline slightly.
*Stop warp just short of where the message appears.
*Repeat for needed warps.
If you follow this procedure, you’ll notice that your audio matches that in the sample editor. For me, I was effectively erasing the bass note stops with audiowarp. However, like the problem others have described on this thread and in other threads, I still heard the original, unwarped audio. This is the normal function of Cubase when you “over correct” using audiowarp past where the algorithm can handle it. This may not fix all of the issues others see, but it fixed mine perfectly without flattening, etc.