Ben Bracken

. The Runner provides plug and play access to a 

 from the Max application, using using OSCQuery for communication with the running code.

This update features a new web-based interface with routing capabilities, expanded hardware support, along with many other improvements and bug fixes. Improvements include:

We've also rolled in direct support for the 

 add-on package, and have included a number of other improvements and bug fixes. Check out the release notes 

We are happy to announce the release of RNBO 1.3.0, available now for download via the Max Package Manager.

With this update, we are...

rnbo-130-released

RNBO 1.3.0 Released

Julien Bayle

there are some people (some students here in the studio too) interested to try to install/run the RNBO Runner on Ubuntu for instance (for interfacing Jetson Nano).

Would it be a plan at some point to go to ubuntu ? or other distrib?

Hi there,

there are some people (some students here in the studio too) interested to try to install/run the RNBO Runner on Ubuntu for...

rnbo-other-distrib-linux-plans

RNBO, other distrib linux plans ?

Johann

After some succeful exports of a RNBO patch to a Raspberry Pi I now get this message during export:

Back in the target list under "Devices" where previously I could select the Raspberry Pi as a target device there is now "No devices connected". But the Rapsberry Pi is connected via cat6 cable to my PC and is still accessible via SSH.

It seems like, this behaviour started after I was adjusting the buffersize of the PiSound from 256 samples down to 32 samples. When I tryied to export with 32 samples I got this error:

After that I tried setting it back to 256 samples but always get the first mentioned message

After some succeful exports of a RNBO patch to a Raspberry Pi I now get this message during export:

Back in the target list under...

cant-export-to-raspberry-pi

can't export to Raspberry Pi

Manuel Lopes

I'm trying to make sort of a groove box with RNBO and export it to raspberry pi, as a first attempt I thought the best way to tackle it was to take the synth building blocks and the guitar pedals libraries to make it. 

However, when I try to copy and paste a building block to another rnbo patch it doesn't understand the param object and gets rid of the ins and outs of the bpatcher. 

Furthermore it got me thinking, can I have a wave table and a granular synth in the  same RNBO patch so i can use them at the same time, or is the groovebox idea unfeasable? 

Sorry if it felt hard to understand but I'm brandnew to RNBO

Hello! 

I'm trying to make sort of a groove box with RNBO and export it to raspberry pi, as a first attempt I thought the best way to...

params-out-of-range

Params out of range

https://rnbo.cycling74.com/learn/rnbo-raspberry-pi-oscquery-runner

Fire a message from any ways (computer, py on the rasp itself etc) and the Runner will fire any messages setup using a inport object in the source patch to that listener.

Are the listeners (created like this) persistent ?

I noticed that, a couple of time, they weren't.

Hi,

https://rnbo.cycling74.com/learn/rnbo-raspberry-pi-oscquery-runner exposed how we can create listeners.

Fire a message from any ways...

rnbo-raspberry-pi-oscquery-runners-listener-persistency

RNBO Raspberry Pi OSCQuery Runner's Listener persistency  ?

I want to receive an external MIDI clock in my RNBO patch running on a Raspberry Pi. But I can't get it to work. The [midiin] does not receive it. [transport] seems to run it's own clock, can't find a way to sync it to anything.

also tryed a [metro 16n @active 1 @lock 1]. It does not react to tempo changes of the external clock.

I guess I would need something like the [rtin} object in Max, but that doesn't exsist.

Hi,
I want to receive an external MIDI clock in my RNBO patch running on a Raspberry Pi. But I can't get it to work. The [midiin] does not...

syncing-rnbo-patch-on-a-raspberry-pi-to-an-external-midi-clock

Syncing RNBO Patch on a Raspberry Pi to an external MIDI clock

TobyAM

As far as I'm aware, this is the "proper" way to implement parameters. The example parameter system is not very smooth.

Why doesn't rnbo.example.juce use the AudioProcessorValueTreeState ?

As far as I'm aware, this is the "proper" way to implement...

why-doesnt-rnboexamplejuce-use-apvts

Why doesn't rnbo.example.juce use APVTS?

Raspberry Pi 4, RNBO patch running & a python script handling GPIOs.

In order to take benefits of polyphony, and instead of firing messages (osc) from the python to the RNBO Runner, we'd like to know if we can use OSC message for that.

, at the end of the list of messages code coloured in the document, we can find the message "/rnbo/inst/0/midi/out" which can be sent followed by a list.

Hi,

Raspberry Pi 4, RNBO patch running & a python script handling GPIOs.

In order to take benefits of polyphony, and instead of firing...

sending-midi-events-through-osc-message-to-the-rnbo-oscquery-runner

Sending "midi events" through OSC message to the RNBO OSCQuery Runner ?

thetechnobear

any examples or documentation in this area from C++?

I cannot find any docs, so have been digging thru the source code....

as far as I can tell, I need to get access to the ExternalDataRef

its seems, if the buffer has been created with the RNBO patch, it looks like Id have to use a an ExternalDataHandler - correct?

do we then wrap this with one of the data view classes?

the alternative, seems to be, to let the C++ 'host' allocate the buffers, and then use SetExternalDataRef on core object... which might be what Id do,

but Id like to also gain access to the buffers created/pre-allocated within RNBO.


I cannot find any docs, so have been digging thru the source code....

the alternative, seems to be, to let the C++ 'host' allocate the buffers, and then use SetExternalDataRef on core object... which might be what Id do, 

but Id like to also gain access to the buffers created/pre-allocated within RNBO.


any examples or documentation in this area from C++?

I cannot find any docs, so have been digging thru the source code....
as far as I can ... 

accessing-data-buffers-c

The documentation on loading file dependencies might be helpful, if you haven't checked it out already.

https://rnbo.cycling74.com/learn/loading-file-dependencies 

unfortunately, that covers the bit I already know... which is letting the host allocate the buffer, using SetExternalData. 

what I was interested in was the API that covers gaining access to the existing buffers.
Ive got a pretty good idea how to do this via ExternalDataHandler, but I was interested to see if my ideas match the 'official' way - as potentially, I could be using an unintended approach the api allows, which might suddenly stop working in a future version of RNBO 


frankly, now im digging into RNBO deeper, the documentation is woeful... the C++ API reference documentation  is nothing more than auto generation from code comments. currently, appears the only way forward is to read the source code...
now I dont have an issue with that... Im used to it, as this is the same as Pure Data, but I kind of expected a bit more for a commercial product... thats cost nearly $400 (+ max license) 

@technobear did you figure out how to do this? I’d like to be able to access RNBO buffers with the C++ API for a visualiser. Has anyone tried this?

yeah, as I pointed out above... the approach you have to use is to have the 'host' allocate the buffer, and supply it to the rnbo api.
I did this for various rnbo 'plugins' that I created that wanted to visualise various waveforms e.g. loopers/granular etc... works pretty well.

the tricky bit when I started out using the RNBO api, was realising which bits of rnbo functionality are the host's responsibility vs what could be in done within the api.

unfortunately, the description/feature set of rnbo, kind of blur this due to the plugin/web code implementations, which include both host and rnbo patch functionality.
though in fairness, doesn't take long to work out whats being done where, and its pretty 'obvious'..


that said, c74 really should shift some of the stuff thats in the json files into the rnbo api, as some of its would be very useful when you create your own host, but don't want to start parsing the json, or running your own 'generator' over the json files to pick up these 'extras'
 


Angelus Medical & Optical is a full service company specializing in equipment for physicians and clinics established in 1946.
Autoclave

Hey 'Bear, I'm in the same situation now, I've got a GUI for my plugin but I want to visualize the audio from some of my RNBO buffers to complete the interface.

Can you share some explicit tips or examples?
Do you use coreObject.getExternalDataInfo? The struct returned for the buffer I want only contains the file, tag, and type, which doesn't seem to apply to an internally generated buffer.

RNBO buffers aside, what other ways are there to pull audio streams from RNBO for visualizations?

as I pointed out above, you have to 'reverse' the problem....

what you do is have the host allocate the data buffers, and you setExternalData, 
so that the rnbo patch can use the buffers supplied by the host.


this has worked perfectly for me... i.e. I created a looper module for my host, which displayed the waveforms in the UI. but all the dsp processing was handed in rnbo.

as for getExternalDataInfo, its just information supplied to the host. so that it can create the external data buffers as necessary.

I think the confusion here (at least for me) is the role of host vs rnbo.
its important to realise that the VST 'host' can be considered an example implementation of a host, rather than part of RNBO... so if you are creating your own host, you can look at it, as an example of how to implement a host, and what the role of the host is, compared to the generated rnbo c++ code.
... or at least, this is what helped me to get to grips with creating my own hosts :) 

AH! So, I have created a rather personalized VST/AU FX plugin through RNBO which works just as I want in various hosts BUT I haven't figured out where/how to get data for visualizing my LFOs and such when it comes time to make a custom UI in JUCE because, as you point out, there really isn't any documentation at all and seems to be none at all for this specific issue. 
So am I forced to read through alllllllll of the source to find these output variables OR I suppose there must be some easier search way like using "varname" on the info-tab. ORRR maybe could it be even more clever-ish to simply add more [out~] objects tied to these data streams and then use that in JUCE? Seems processor intensive that way, IDK.
/I'm a blundering hack, but I know what I like

Is this example currently valid working code?
https://rnbo.cycling74.com/learn/loading-file-dependencies

When I tried implementing it the arguments to setExternalData() seemed different.

I wish I just had a code example for retrieving buffers. This seems like a reoccurring issue for users, might be worth at least an example if not some more direct solution in the SDK.

I will try again in a week and if I figure it out I will share my code.

@THETECHNOBEAR can I pay you for a working example?

I'm trying... so in the example linked helpfully above there's this block:

// Make space to store the file
        const uint32_t sampleBufferSize = sizeof(float) * info.frames * info.channels;
        float *sampleBuffer = (float *) malloc(sampleBufferSize);

        int readSamples = sf_read_float(sf, (float *) sampleBuffer, sampleBufferSize);

        rnboObject.setExternalData(
          idstr.c_str(),
          (char *) sampleBuffer,
          readSamples * sizeof(float) / sizeof(char),
          bufferType,
          &freeBuffer
        );

Do I then work with sampleBuffer somehow? will changes to the buffer in RNBO appear at sampleBuffer as a (pointer to a) string literal of the buffer values or something? I don't really get it.

A "byte array of data" referenced by a "char *"

Can I loop through sampleBuffer[] like an array?

I guess I'll experiment.


I figured it out!

declare a private member  variable like:
float *sampleBuffer = (float *) malloc(sizeof(float) * 2048);

then in your:
void MyUIClass::setAudioProcessor(RNBO::JuceAudioProcessor* p)
{
processor = p;
RNBO::ParameterInfo parameterInfo;
RNBO::CoreObject& coreObject = processor->getRnboObject();

// allocate data buffer
RNBO::Float32AudioBuffer bufferType(1, 48000);
// Make space to store the file

const uint32_t sampleBufferSize = sizeof(float) * 2048;
float *sampleBuffer = (float *) malloc(sampleBufferSize);
coreObject.setExternalData(
"myRNBObuffer",
reinterpret_cast<char *>(sampleBuffer),
2048 * sizeof(float) / sizeof(char),
bufferType,
&freeBuffer
);


Then finally you can loop through sampleBuffer[i] for the buffer values!

At least that's the basics of it and I just got this much going.

I just realized, this buffer allocation will erase your buffer every time you open the plugin window, which is very bad if you use that buffer in RNBO for DSP. In that case, copy your DSP buffer to a buffer only used by Juce for visualization.

Maybe there's a better place to initialize these, but for now this works well.

accessing (data)  buffers (C++) 

Aleksei Savartsov

Hi! I stumbled into RNBO C++ export can't really be compiled with 

define. I think why is pretty much obvious: just not all parts of code that work with presets are  guarded with this flag and there are also some incomplete types. More specifically, I use

 Maybe it sounds not a big deal but disabling presets completely saves around 8KB of code space on my target (comparing to  RNBO_NOJSONPRESETS flag). So maybe it could be fixed 🙏 

Here is the patch I'm using now, quite simple changes there:

Subject: [PATCH] RNBO_NOPRESETS
---
Index: src/RNBO_Presets.h
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
diff --git a/src/RNBO_Presets.h b/src/RNBO_Presets.h
--- a/src/RNBO_Presets.h	(revision f04b93be2bc9a4883cea1c95e4c17603d94e2932)
+++ b/src/RNBO_Presets.h	(date 1711830792375)
@@ -12,9 +12,10 @@
 #ifdef RNBO_NOPRESETS

 namespace RNBO {
-	using Preset = PatcherState;
+	using Preset = void*;
 	using PresetCallback = void(*);
 	using UniquePresetPtr = void*;
+	using ConstPresetPtr = void;
 }

 #else
Index: src/RNBO_EngineCore.h
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
diff --git a/src/RNBO_EngineCore.h b/src/RNBO_EngineCore.h
--- a/src/RNBO_EngineCore.h	(revision f04b93be2bc9a4883cea1c95e4c17603d94e2932)
+++ b/src/RNBO_EngineCore.h	(date 1711830902727)
@@ -610,23 +610,29 @@

 		virtual void setPresetSync(UniquePresetPtr preset)
 		{
-			_settingPreset = true;
+#ifndef RNBO_NOPRESETS
+  			_settingPreset = true;
 			sendOutgoingEvent(PresetEvent(_currentTime, PresetEvent::SettingBegin));
 			_patcher->setPreset(_currentTime, *preset);
 			sendOutgoingEvent(PresetEvent(_currentTime, PresetEvent::SettingEnd));
 			_settingPreset = false;
+#endif
 		}

 		virtual ConstPresetPtr getPresetSync() {
+#ifndef RNBO_NOPRESETS
 			PresetPtr preset = std::make_shared<Preset>();
 			_patcher->getPreset(*preset);
 			return preset;
+#endif
 		}

 		void presetTouched() override {
+#ifndef RNBO_NOPRESETS
 			if (!_settingPreset) {
 				sendOutgoingEvent(PresetEvent(_currentTime, PresetEvent::Touched, nullptr, nullptr));
 			}
+#endif
 		}

 		virtual void beginProcessDataRefs() {}
Index: src/RNBO_ParameterInterfaceSync.cpp
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
diff --git a/src/RNBO_ParameterInterfaceSync.cpp b/src/RNBO_ParameterInterfaceSync.cpp
--- a/src/RNBO_ParameterInterfaceSync.cpp	(revision f04b93be2bc9a4883cea1c95e4c17603d94e2932)
+++ b/src/RNBO_ParameterInterfaceSync.cpp	(date 1711830924705)
@@ -52,6 +52,7 @@
 		}

 		if (event.isPresetEvent()) {
+#ifndef RNBO_NOPRESETS
 			PresetEvent pe = event.getPresetEvent();
 			if (pe.getType() == PresetEvent::Get) {
 				_engine.handlePresetEvent(pe);
@@ -59,6 +60,7 @@
 			else {
 				_engine.scheduleEvent(event);
 			}
+#endif
 		}
 		else {
 			_engine.scheduleEvent(event);


rnbo-c-export-rnbonopresets

RNBO C++ export: RNBO_NOPRESETS

We are excited to announce the availability of our 

 as a public beta. We’ve worked closely with 

. The Eventide H9000 is a rack-sized multi-effects unit with powerful DSP processing capabilities and numerous high quality built-in effects. We’re excited to enable RNBO export for this and open the door to unique custom studio effects and instruments without the strict limitations of other hardware platforms.

RNBO support is similar to the existing Gen support, but more streamlined, and uses the built-in 

, rather than a watcher patcher, to manage the export process. Eventually, all of these changes will be rolled into the standard release versions of RNBO and this package.

Get the preview version of the RNBO package (v1.2.7-eventide.0):

Get the preview version of the "Eventide H9000" package (v1.0.4-beta.3):

We’d love to hear any experiences and feedback from RNBO users with access to an H9000. To join the discussion, use the 

We are excited to announce the availability of our Eventide package for RNBO as a public beta. We’ve worked closely with Eventide to bring...

Cycling '74 Forums

We are happy to announce the release of RNBO 1.3.0, available now for download via the Max Package Manager. With this update, we are...

We are excited to announce the availability of our Eventide package for RNBO as a public beta. We’ve worked closely with Eventide to...

This is very good. I know there is no audio port on the rp5 (BTW I didn't investigate how/why we can't use the native one with rnbo. I...

dang, well... we are releasing RNBO 1.3 very soon, it will require a new image download, hopefully this is resolved there.. let us know if...

Hello! I'm trying to make sort of a groove box with RNBO and export it to raspberry pi, as a first attempt I thought the best way to...

Hello Alex, thanks for your answer and work on this. Got a couple of questions about rnbo and raspberry that I will post asap tomorrow....

Syncing the Transport on the PI to MIDI clock is a thing I'd like to implement but that hasn't happened yet. I have successfully received...

Why doesn't rnbo.example.juce use the AudioProcessorValueTreeState ? As far as I'm aware, this is the "proper" way to implement...

Hi Alex and thanks. I made a mistake with in/oui in my post but it was what I was expecting. Is there a documentation about these message...

THETECHNOBEAR, I'm struggling a lot with intermittent "Access violation reading location" when copying my RNBO buffer.... I've been...

RNBO C++ export: RNBO_NOPRESETS