To get you started using RNBO with external hardware, we are providing a run-ready image based on a full Raspberry Pi OS distribution that should work on both the rPi3 and rPi4:

raspios-bullseye-armhf-rnbooscquery_1.2.2.dmg.zip

raspios-bullseye-armhf-rnbooscquery_1.0.0.dmg.zip

Resources

Codebox

The constant value used when converting from degrees to radians

degtorad

out1

halfpi

invpi

ln10

log10e

log2e

not supported in RNBO, will always return 1.

mc_channel

mc_channelcount

returns the maximum number value that the number system can represent

number_max

PI_OVER_2

PI_OVER_4

The constant value used when converting from radians to degrees

radtodeg

sqrt1_2

sqrt2

twopi

C++ API

JS API

Welcome to RNBO

Quickstart

RNBO Basics

Key Differences

Why We Made RNBO

Getting Started

Audio IO

Messages to rnbo~

Using Parameters

MIDI in RNBO

Messages and Ports

Working with Polyphony and Voice Control

Polyphony and Voice Control in Detail

Polyphony and Voice Control

Audio Files in RNBO

Using Buffers

Using the FFT

Fundamentals

Export Targets Overview

Audio Plugin Target Overview

Exporting to the Audio Plugin Target

VST/AudioUnit

Max External Target Overview

Exporting to the Max External Target

Max External Target

Raspberry Pi Target Overview

Raspberry Pi Setup

Managing Raspberry Pi Exports

Raspberry Pi FAQ and Troubleshooting

Configuring Audio on the Raspberry Pi

Using Bluetooth MIDI on the Raspberry Pi Target

Raspberry Pi Export Configuration

Raspberry Pi Target

The Web Export Target

Exporting to the Web Export Target

The C++ Source Code Target Introduction

Exporting to the C++ Source Code Target

The C++ Source Code Target

Export Targets

Getting the RNBO.js library

Working with Web Audio Contexts

Loading a RNBO Device in the Browser

Getting and Setting Parameters

Sending and Receiving Messages (Inlets + Outlets)

Sending and Receiving MIDI

Events related to Musical Time

Loading and Storing Presets

Buffers and File Dependencies

Working with Multiple RNBO Devices

Routing MIDI Between Devices

Working with TypeScript

Working with JavaScript

How to Include RNBO in Your C++ Project

RNBO Helper Types

Getting and Setting Parameters in C++

Sending and Receiving Messages in C++

Sending and Receiving MIDI in C++

Multiple RNBO Devices in one C++ Project

Working with Presets in C++

Loading File Dependencies

Working with C++

Code Export

Using Abstractions

Subpatchers and Abstractions in Depth

Abstractions

Transports and Synchronization

Gen in RNBO

Delays in RNBO

Max Projects and RNBO

Presets With Snapshots

Send and Receive

Working with Lists

Object Properties

Architecture

Advanced

RNBO Patcher Bottom Toolbar

RNBO Patcher Left Toolbar

RNBO Patcher Right Toolbar

RNBO Export Sidebar Overview

Signal Probe

Objects for Visualizing Signal Data in RNBO

Patcher UI

Getting Started with Codebox

Understanding Storage: let, const, @state, @param

Building a Note Controller with Codebox

Voice Stealing modes

Monophonic Legato modes

Using the Audio Plugin/Desktop Application Template

Programming a Custom UI with JUCE

Using the Web Page Template

Templates

MIDI Synthesizer

MIDI Sequencer

Projects

Intro to Sample Accurate Patching

Sample Accurate Patching Reference

Sample Accurate Patching

Working with Scala and Custom Tuning

Scala and Custom Tuning Reference

Scala and Custom Tuning

RNBO and Max for Live

RNBO Raspberry Pi OSCQuery Runner

Raspberry Pi Debug Interface

Metadata

Export Description

Working with Photoresistors (LDRs) on the Raspberry Pi with RNBO

Adding Potentiometers to your Raspberry Pi with RNBO

Light up some LEDs with RNBO on the Raspberry Pi

Using a Gyroscope/Accelerometer module over i2C with RNBO on the RPi

Raspberry Pi GPIO

Updating the RNBO Package

Special Topics

Learn

Learning Synths

A chat with Jay Curtis / Lysdexic

Articles

RNBO Guitar Pedals

Synth Building Blocks: Intro

Synth Building Blocks: Generators

Synth Building Blocks: Buffers

Synth Building Blocks: Filters

Synth Building Blocks: Envelopes

Synth Building Blocks: Control Signals

Synth Building Blocks

Packages

C++ Plugin/Application Template

JavaScript Webpage Template

Supercollider UGen Starter

VCV Rack Starter

Starters

Envelope Following

Filtered Overdrive

Modulated Filter

Panners

Simple Compressor

Shifting Feedback Delay

Waveshape Distortion

Audio Effects

Basic Sequencing

Audio Chop Shuffler

Changing Time Values in RNBO

Value Looper

Event Sequencing

IDM-5r

Generative Sequencing

Random and Generative

Phase Aligned Formant Synthesis

FM Mod

Phaseshaping Supersaw

Synthesis and Synthesizers

Exp Polyphony Drum Sampler

Sample Shot

Sampling and Sample Playback

Raspberry Pi OSCQuery Max Example

Utilities

Examples

Explore

Objects and Operators

Performs the subtraction with the value currently stored.

The value in the right inlet is subtracted from this value and the result is sent out the outlet.

Compute the absolute difference between two inputs

absdiff

The absolute value of the difference between the two numbers received in the inlets.

acos

Input to the inverse hyperbolic cosine function.

acosh

The inverse hyperbolic cosine of the input.

Performs the operation with the value currently stored. If there is no argument, && initially holds `0`.

The value is compared to the value in the left inlet to determine output but only a value in the left inlet will trigger output.

If either the value in the left inlet or the value in the right inlet (or specified by the argument) is not `0`, then the output is `0`. Otherwise, the output is `1`.

The input number or list that will come before any appended values in the output list.

A number or list of numbers to append to the input.

append

Outputs a list composed of the input value(s) followed by the appended value(s).