RC as Vsti in REAPER

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2 posts since 7 Jun, 2019

Post Fri May 22, 2020 2:00 pm

Can anyone Help?
I have been playing around with RapidComposer as a VSTi in REAPER with some success.

I have manage to load up a project in REAPER with RC being used as a VSTi within REAPER and mapping the MIDI Channels from the RC Output Channel in REAPER to various tracks.

I have even been able to Record the MIDI coming out from RC within REAPER - all bar the Percusssion Track.

I can hear the sounds and see the signal arrriving at the Percussion track - but it does not record Midi.

I was using sforzando ( General Midi Drum Set). However when I changed to using a simple Drum Vst ( e.g.SL Drum3 from Beatmaker) it did record the Midi Output?

It is a bit frustrating being so near but so far.

Other tracks using sforzando for single instruments like Strings Harps Flutes etc all work OK.

What Settings/Preferences do you suggest for Tracks in REAPER and RapidComposer?

Especially the RC Output track in Reaper and the Midi/Track settings in Rapidcomposer?


727 posts since 15 May, 2017

Re: RC as Vsti in REAPER

Post Fri May 22, 2020 3:58 pm

you probably need to "merge" the midi in Reaper.. Click the IO button in Reaper, then merge..

In Reaper, for the RC Vst, you will see "2 out" at the top left.., click that and that brings up the "pin connector".. You will then see "I/O", click that and choose merge..

2 posts since 7 Jun, 2019

Re: RC as Vsti in REAPER

Post Sat May 23, 2020 3:44 am

And thanks for responding to my request for information.

After many trials I have managed get a work around – although I am not sure I fully understand the answer.

Routing for any FX in REAPER can be visualized and edited using the plug-in pin connector dialog (click the FX in/out button).
Within this menu there are two sections MIDI INPUT /MIDI OUTPUT
Set MIDI INPUT to “Mapping REAPER MIDI Buses to VST3 MIDI Buses
Set MIDI OUTPUT to “Mapping Vst3 MIDI Buses to REAPER MIDI Buses

The other settings for RC and REAPER are as describe in Chris Aulder Tutorial https://www.youtube.com/watch?v=Dxcqc9M ... -H&index=5

The important thing to grasp is the use of Channels and Buses – which I need to get my head around.

I found the following Reaper Manual informative in explaining MIDI Channels and MIDI BUSES
Section 17.20 MIDI Routing: MIDI Channels, Track Sends, and MIDI Buses

Anyway thanks again for all your help.


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