I created "ion_router", because I wanted to be able to control and automate any parameter on my ION from any source. This abstraction takes values 0 through 1 and scales them to control any feature of the ION available to NRPN messages.

My next project is a Pd abstraction that will scale data from any knob, any fader, any source of automation to 0 through 1 for use with "ion_router". I'm ultimately hoping to create a sort of modular patcher environment in Pd that'll let me route control data between Logic, Reaktor, IanniX, Ardour, Live, and all my hardware.

(It's too late for me to seem as psyched as I really am about this.)

Comments on my mission, or the abs itself are appreciated. Thanks!

Darrell

Good work. Post up the progress so far when you are ready.

Hmmm. I could have sworn I attached a zip file the first time! Preview, ach!

Darrell

http://www.pdpatchrepo.info/hurleur/ion_nrpn_router.zip

Sometimes attachments get dropped if you re-edit the post - a forum quirk.

You've obviously put a helluva lot of work into this Deerell. I don't know what it does (much - I can guess), but this is a treasure to someone who's suing lots of MIDI CCs

Thanks for sharing your output. Look forward to hearing some tunes done using this.

a.

Thanks for the feedback, Obi.

Each of the ION's parameters has a different resolution. Some receive values between -1000 and 1000, and some are just simple toggles. I built this patch to receive values from 0 to 1 and to scale them to the selected parameter.

All the routing took a good long time, and I had to keep refashioning my NRPN converter abstraction to account for the full ranges of the parameters, as well as any offset. Ultimately, I ended up making a really useful tool, and now I can control the ION from any source (Pd, IanniX, hardware, Wiimote), provided I scale that source's output from 0 to 1.

I'm pleased as punch, though I think I should post the NRPN scaler/transmitter as its own entity, cos that'll be much more useful to folks using NRPN. Anyhow, thanks for looking!

Darrell

hey nice patch!

Have you got that NRPN patch still? I've build a midi patch randomizer for external gear and I'd like to add on to it to make it work with NRPN driven machines too.

I'll post it here if you'd like it.

[Double post weirdness]

Surprise! I found the old patch in my gmail archive. This was initially designed to work with the Alesis Ion, so there are some idiosyncrasies whose purpose I have forgotten. The "nrpnout-ofs" object is meant to send nrpn messages to hardware (or wherever). The abs has four arguments. The first arg sets the msb (cc99) value of the nrpn parameter you want to modify. The second arg sets the lsb (cc98) value. The third sets the range of the param (use the total range here, i.e., if the param goes from 0 to 400, the range arg you'll use will be 401). The fourth arg sets the offset (again, if you have a param with values between -200 and 200, the range arg is still 401, but the offset arg is now -200). The msb/lsb values are gonna work predictably across devices. Depending on how each device handles nrpn coarse/fine, you might have to fiddle with the args.

I wasn't able to find the object that receives nrpn and converts it to cc messages. I may be able to work that out again if you need. If you have any other questions about making this thing work for you, send them my way. Happy randomizing.

D

http://www.pdpatchrepo.info/hurleur/nrpnout_ofs.pd

Hi -- I found this post while searching for a way to convert NRPNs (from hardware synth knob movements) into CC messages. Do you remember how this is done?

I am using a Shruthi synth which receives CC but only transmits NRPN from its knobs. I need to convert the NRPN into CC so I can record knob tweaks and send them back to the shruthi as part of a midi sequence.

any help would be greatly appreciated!

here's my shruthi patch that did the cc to nrpn thing. Maybe you could use it as a model to do the nrpn to cc?

(by the way, it's an old patch, so u might wanna just check that it works first

http://www.pdpatchrepo.info/hurleur/shruthi.pd