Zynthian OSC CUIA over Open Stage Control - template

ToFF · September 2, 2022, 9:02pm

Hi all zynthianist,

I started learning the make template for Open Stage Control which sending OSC messageses.
I don’t know if I will be able to make a template for SooperLooper on Zynthian, but the first attempts are here in the form of basic CUIA commands.
Maybe this template will help those like me who have a encoderless Zynthian.

zynthianCUIA.json (110.8 KB)
P.S.: These three commands are missing from the template

"/CUIA/PRESET_FAVS"
"/CUIA/ZCTRL_TOUCH"
"/CUIA/LEARN"

le51 · September 3, 2022, 7:01am

Fantastic ! Thanks a lot @ToFF .

I’ve discovered OSC and its creator last year. But I haven’t tried it yet, it was a bit complicated for me.

ToFF · September 3, 2022, 11:22am

For me too, i’m familiar with python simple scripting and html/css code, it’s all.

Jean help me when I was trying his loop192 looper. I had some issue convert midi signal to correct osc commands.

I wonder how many zynthianist use open stage control and OSC?

ToFF · September 19, 2022, 5:43pm

I have new version of template with Zynthian OSC CUIA. I was learning how to script for Open Stage Control, and I regretted not including the three missing commands. So here is the result.

zynthianCUIA_v2.json (120.2 KB)

I have prepared a template for the mixer as well, but currently the registration of the address from which the call came does not work in the test version.
I created a bug report about this

github.com/zynthian/zynthian-issue-tracking

No connection between Zynthian Mixer and OSC application - Testing Version

opened 05:15PM - 19 Sep 22 UTC

ToFFmashines

Bug

Unable to connect Zynthian Mixer with OSC application. zynthian-ui: testing (c6…533fe) From OSC client ( on Open stage control) is sending message for connection with Zynthian (DEBUG, OSC) Out: { address: '/mixer/heartbeat', args: [ { type: 's', value: '' } ] } To: 192.XXX.YYY.TTT:1370 From UIlog Sep 19 17:57:47 zynthian startx[3243]: INFO:zynthian_gui.osc_cb_all: OSC MESSAGE '/mixer/heartbeat' from 'osc.udp://192.XXX.YYY.ZZZ:8080/' Sep 19 17:57:47 zynthian startx[3243]: WARNING:zynthian_gui.osc_cb_all: Failed to add OSC client registration 192..XXX.YYY.ZZZ I have the interface ready for the mixer, but I lack proper communication between Zynthian and the Open Stage Control server/client ![picture-4](https://user-images.githubusercontent.com/75641620/191074500-b444e232-807f-4535-9474-cb05cab7603e.jpg)

Before creating the masterpiece, i.e. the Superlooper template, I am now warming up on the template controlling the routing of controllers and synthesizers via BomeBox.

Stay tuned

ToFF · October 23, 2022, 1:56pm

Hallo to all zynthianist,

I prepared OSC template for zynthian mixer. Here is results:
mixer_zynthian.zip (3.6 KB)

download and unpack to selected place
in file mixer.js change adress on your zynthian - edit var zyn_host = '192.XXX.YYY.ZZZ'
run Open stage control server
i using this start command:

node ~/ProductionMusic/open-stage-control-1.17.0-node 
-s 192.XXX.YYY.ZZZ:1370
-l /home/patch/ProductionMusic/Zynthian_Mixer/mixer_zynthian.json
-c /home/patch/ProductionMusic/Zynthian_Mixer/mixer.js`
--osc-port 1370
-d

where -s is zynthian address, -l path to file with tempate for mixer mixer_zynthian.json, which automatically will be open in browserr, -c path to custom module mixer.js, which starting listening of zynthian, and most important is --osc-port 1370 setting osc server to listening of zynthian.

or lunch application

There is sumarized OSC Commands for this template:

Numbering of chains are X (0…15) or 256 for main chain
/mixer/faderX float - Chain X fader level [0.0…1.0]
/mixer/balanceX float - Chain X balance value [-1.0…1.0]
/mixer/muteX integer - Chain X mute [0|1]
/mixer/soloX integer - Chain X solo [0|1]
/mixer/monoX integer - Chain X mono/stereo [0|1]
/mixer/dpmXa float - Chain X peak programme level A-leg (left) - Notification-only - display values in range [-60, 0]
/mixer/dpmXb float - Chain X peak programme level B-leg (right) - Notification-only - display values in range [-60, 0]
/mixer/dpmA float - Main peak programme level A-leg (left) - Notification-only - display values in range [-60, 0]
/mixer/dpmB, float- Main peak programme level B-leg (right) - Notification-only - display values in range [-60, 0]
/mixer/heartbeat - Null message used to keep client registration active *Send every 60s to receive notifications

riban · October 24, 2022, 12:53pm

The strips are numbered based on the chain’s MIDI channel. (This caught me out because I didn’t have MIDI channels 1 or 2 populated so had to adjust the third strip to change the first displayed strip.

ToFF · October 24, 2022, 12:59pm

Yes, the numbers of strips are fixed from 0 to 15 (and shows as 1 to 16), main strip has number 256.

ToFF · October 24, 2022, 1:07pm

I can imagine extending OSC with the commands:

whether a specific chain exists - for non-existent ones, the display would be suppressed
chain selection, turning it on in omni mode of zynthian as is working on stage version of mixer

riban · October 24, 2022, 1:46pm

This would be a good enhancement but I suggest waiting until we refactor the base code so that chains are not (necessarily) linked with MIDI channels.

riban · October 26, 2022, 10:47am

I have now run this on a machine that can get the feedback and see some distortion of meters. I don’t know if it is intentional but a blue line at the top (peak hold?) wiggles and top of the green bars have a similar effect.

ToFF · October 26, 2022, 12:30pm

I haven’t been able to display the current volume value using a bar(or level) in OSC yet. A graph is used that gradually plots values over time and moves. By narrowing it, I give the impression that it is a bar, but in reality it is not. If I come across a better display I will make improvements. Or someone more experienced in Open Stage Control could advise.

ToFF · October 28, 2022, 8:13am

I managed to find a few examples of how to make a bar view that uses a fader widget. So here is a version that is already comparable to the original Zynthian mixer UI. Please change mixer_zynthian.json file to the new:
mixer_zynthian.json (47.0 KB)

riban · October 28, 2022, 11:43am

That looks much better - well done! Your next challenge is to show different coloured bars, e.g.

under -18dB = green
-18dB … -10dB = orange/yellow
over -10dB = red

ToFF · October 28, 2022, 12:08pm

challenge accepted

ToFF · January 15, 2023, 12:14pm

Challenge completed. Now bars change collor.

Last version of Mixer tempalte I loaded on GitHub - GitHub - ToFFmashines/Zynthian-OSC: Tempate for Open Stage Control with controll of Zynthian synt

Templates are available for CUIA, Mixer and joint Mixer+CUIA.

Download and edit as you like.

gilrain · April 23, 2024, 2:27pm

Can the Open Stage Control server run alongside Zynthian on the same Raspberry Pi 4?

ToFF · April 23, 2024, 3:10pm

Theoreticaly yes, but I didn’t tried it. I have its on my do list. In the first you must install node and make some script for start of OSC, maybe best will be daemon service.