Midi pitchbend not working?

drewmo wrote on 4/4/2024, 5:12 PM

I'm using Jam Origin Guitar to Midi (G2M) plugin that converts electric guitar audio to midi commands. It's a brilliant plugin that pipes midi output to the other VSTi's on other tracks in Samplitude Pro X6. Normal midi note commands for pitch and velocity work fine. However, I have tried enabling the pitchbend control in G2M, and it sends a stream of pitchbend midi commands that get recorded and show up in the Samplitude midi editor list, but it has no effect on the VSTi's (see attached screenshot). Notes are just normal whole notes, no bending. Am I missing something, do I need to enable something in the midi controls? Any suggestions?

Comments

SP. wrote on 4/4/2024, 5:35 PM

@drewmo Which instrument is receiving the pitchbend commands? Have you checked whether the instrument in question is processing pitchbend commands or not?

drewmo wrote on 4/4/2024, 8:29 PM

Thanks SP. I'm not actually sure - how would I know? None of the 10 instruments I'm using respond to bends (which include the VITA orchestra, violins, vibraphone, choir and several other 3rd party VSTi such as organ, Juno synth). I'm assuming that at least some of these were designed for pitch bend?

SP. wrote on 4/5/2024, 3:39 AM

@drewmo Ok, Vita Instruments should process pitchbends. If you open the Vita Instrument GUI, is the pitchbend wheel moving (in the bottom left corner) while you play back your project?

In case it's not moving, does the pitch change if you move it manually during playback?

drewmo wrote on 4/5/2024, 6:53 PM

Ok, some more detailed information: half of the 10 VSTi's respond to pitch control from my Yamaha keyboard. Some VITA instruments do (vibraphone, string quartet, analog synth), some don't (orchestra, accordion, choir). Again, some 3rd party VSTi's do and some don't. Some plugins are 32bit, some are 64 bit, I don't see any correlation there. I'm wondering if there is a pitchbend enable checkbox somewhere in Samplitude that I'm not seeing...

BUT... Only one VSTi responds to the G2M internal midi pitchbend, and that is the Redtron Melotron VSTi (32bit) (pretty good sounding instrument too!), so I guess whatever the problem is, it's not completely broken. But I have no idea why this one plugin works and none of the others do, that work with the keyboard wheel. I've attached another screenshot showing the pitchbend curve as seen in the midi editor for a single note bend coming from G2M as seen in the Samp midi editor.

AND.. per your insightful suggestion, really interestingly, the mod wheel moves in all the VSTi's in response to BOTH the Yamaha pitchwheel and the G2M pitchbend commands. So the commands are definitely getting to the VSTi's.

The only other thing I can add is that the Yamaha sends out the pitchbend commands simultaneously on channels 1,2 and 3, whereas G2M only sends it out on Channel 1. Not sure how that influences anything though (the instruments are on all channel 1) .