Is there a way to route the Audio In to the pitch of an oscillator in Reaktor Blocks?

I don't understand exactly what you are trying to do

Are you trying to use audio inputs to send a pitch signal (like a V/oct) to blocks?

Or are you sending in some 'music' that you want blocks to analyse and work out what the note values and gates are for that music?

Or something else?

Can you post more details/pics of what you have tried so far

:) sometimes the simplest concepts are the most difficult to implement.

pitch detection is notoriously difficult. It's easy to do it badly, but to do it so that you can easily use the results in multiple different contexts without having to modify your approach to 'help' the pitch detection to work is a whole different ball game. This is a very difficult thing to do well.

For it to 'just work', you need perfect tracking to avoid glitches, an algorithm that handles noisy inputs well, it must be able to deal with vibrato and bends on the input, low latency (this rejects most algorithms, and no latency is impossible)... it's basically something that if you solve it and find a way that ticks all the boxes, you could probably run a successful business based on just that tech!

Seems to me like it would be much easier to find a different system that does let you use the midi notes, or at least find a workaround based on that concept anyway.

Why do you want to use Blocks?

'Blocks' is a framework specification based on Reaktor Instruments that is specifically designed for audio based monophonic processing, to partially emulate control voltage based hardware modular systems like Eurorack. So probably the worst thing to try and use if you want to work with polyphony and MIDI.

Why not just use standard Reaktor modules where polyphony and MIDI are right there and ready to rock?

I'm not sure what MFX is, and you haven't said if you're using Reaktor in some particular DAW, or standalone... but if you post some questions about what you are trying to achieve rather than how you have imagined you might do it, maybe folk will have answers?

So you look for an utility like WIDI 4, wave to midi?

I’m still not quite sure I understand what you’re trying to achieve. You want to use Reaktor (Blocks) as an effect processor, while sequencing some sound generators in the same Rack at the same time, using an external midi source?

If that’s correct, then it’s easy to do in Ableton Live, and I suppose it should work in Logic as well. Unfortunately I’m not familiar with Logic and can’t help out. But if you explain a bit better what you want to do, then maybe someone else can chime in.

Sure, just set up a new midi track (in Live), route the output to the track containing Reaktor fx, and select the plug-in instance (and midi channel? I’m not sure — I can see 16 „different“ Reaktors, I just select the first one called 1-Reaktor 6 FX). The notes from this midi track will appear in the Util Note In block in Reaktor, as usual. Good luck!