Open-source alternatives to BespokeSynth

Ardour is a digital audio workstation, multitrack audio mixer, and MIDI sequencer. It functions as a non-linear audio editor and a plugin host for running third-party effects and instruments. The system provides specialized capabilities for post-production audio scoring through video frame synchronization, as well as live performance sequencing for triggering clips and patterns in real-time. It also supports tactile mixing via control surface mapping and hardware controller configuration. The software covers a broad range of audio production needs, including multitrack recording, MIDI sequen

Rack is a virtual Eurorack modular synthesizer emulator and a modular synthesis SDK. It provides a digital environment for creating and routing electronic music signals using virtual modules, oscillators, and filters, simulating the behavior of analog hardware through voltage-based signal routing. The system functions as a MIDI and CV converter, translating signals between software and external hardware, and can operate as a VST or industry-standard instrument plugin within digital audio workstations. It also acts as a VST plugin host, embedding external virtual instruments and effects to exp

miniaudio is a single-file C audio library used for audio playback, capture, and hardware interfacing across multiple operating systems. It functions as an audio hardware abstraction layer, an audio processing engine, an audio synthesis engine, and a codec and resampler. The project implements a node-graph based system for routing digital audio signals, mixing, and 3D spatialization. It also includes a programmatic generator for noise patterns and basic waveforms used for sound creation and signal testing. The library covers digital signal processing, including audio format conversion and sa

Sonic Pi is a live coding music environment and algorithmic composition tool. It functions as a Ruby-based audio engine that allows users to compose and perform music in real time by writing and executing code during playback. The platform serves as an educational coding platform, using sound creation as a play-based environment to teach software logic and programming principles. It also acts as a MIDI and OSC controller for synchronizing external hardware and software. The system covers a broad range of audio capabilities, including software-based sound synthesis, audio sample manipulation,

EasyEffects is a real-time audio processor and system-wide effects manager designed for PipeWire audio streams. It functions as a comprehensive suite for applying filters, equalizers, and limiters to both input and output audio across the entire system. The project distinguishes itself through its use of deep learning for neural network noise suppression and voice isolation, as well as its ability to simulate physical acoustic environments using impulse-response convolution. It includes a sophisticated preset management system that allows users to associate specific audio configurations with

wavesurfer.js is a WebAudio playback library and interactive waveform visualizer that renders audio data onto an HTML5 canvas. It enables users to see and navigate sound files through a visual representation of audio peaks, allowing for direct seeking and playback control within a web browser. The project is distinguished by its flexible rendering model, which can use precomputed peak data to display waveforms without downloading or decoding the full audio file. It utilizes a plugin-based extension model to integrate advanced tools such as spectrograms, interactive audio timelines, and real-t

Overtone is a Lisp audio synthesis library that provides a programmable environment for designing synthesizers and generating real-time audio. It serves as a digital signal processing framework for live sound programming, integrating an audio sample manager for retrieving and caching sounds from remote repositories and a musical sequence generator for composing melodic and rhythmic structures. The project distinguishes itself through its specialized interfaces for hardware and networking, featuring a dedicated system for routing MIDI data and exchanging Open Sound Control messages between sof

Scribbletune is a JavaScript music composition library, MIDI file generator, text-based patch diagrammer, and Web Audio API sequencer. It enables the definition of rhythms, chords, and melodies using string-based notation for real-time playback in web browsers. The system transforms simple text notation into SVG visual representations of modular synthesizer signal paths. It also converts programmatically composed musical clips and patterns into standard MIDI files for use in external digital audio workstations. Composition capabilities include a character-based rhythmic notation system for p

Tixl is a node-based motion graphics engine and procedural generation tool used to create 3D geometry and shaders. It utilizes a directed acyclic graph of operators and GPU-accelerated compute kernels to generate complex 3D shapes, particularly through the use of signed distance functions and particle simulations. The engine is highly extensible via a C# development framework that supports hot code reloading, allowing custom operator logic to be injected into the active runtime without restarting. It further distinguishes itself as a lighting controller, capable of translating 3D spatial attr

This repository is a comprehensive collection of functional 2D and 3D demo projects and implementation samples for the Godot Game Engine. It serves as an interactive tutorial and reference library, providing a working codebase to demonstrate how to apply engine features in real-world scenarios. The collection focuses on practical implementation guides, covering a wide array of technical capabilities from basic engine fundamentals to advanced rendering and scripting techniques. It allows users to study the application of node-based composition, asset pipelines, and game logic through direct ex

Duktape is an embeddable JavaScript engine and portable scripting runtime designed for integration into C and C++ applications. It functions as a lightweight ECMAScript runtime that provides a C-JavaScript bridge for exchanging data and invoking functions between native code and a script execution environment. The engine includes an ECMAScript bytecode compiler that allows for the serialization and caching of compiled functions to disk to reduce application startup time. It organizes script dependencies using a CommonJS-compliant module loader. The runtime covers a variety of capabilities in

AudioKit is an audio framework for iOS, macOS, and tvOS that provides tools for digital audio synthesis, signal processing, and audio analysis. It functions as a synthesis engine for generating audio waveforms and textures, a processing library for modifying tonal characteristics, and a toolkit for extracting frequency and amplitude data from sonic signals. The framework utilizes a modular node architecture and graph-based signal routing to connect audio generators, processors, and outputs. It wraps low-level audio primitives in high-level classes to facilitate sound generation and modificati

Sonic Pi is a live coding music environment and algorithmic composition tool. It functions as a Ruby-based audio engine that allows users to compose and perform audio in real-time through a programmable interface. The software serves as interactive music education software, designed to teach computer science fundamentals and introductory programming concepts through the immediate feedback of sound generation. The system provides capabilities for real-time audio synthesis and the creation of complex musical patterns and sequences. It enables the generation of audio and the execution of music

Alda is a text-based music programming language and command-line tool for composing, playing, and live-coding musical scores. It functions as a MIDI composition engine that renders plain-text scores into audio output, and as a live coding environment where code entered in a read-eval-print loop produces real-time playback without restarting the interpreter. The system distinguishes itself through an event-driven playback engine that schedules timed note events, an instrument-attribute inheritance model that cascades properties like volume and tempo from global defaults to individual parts, an

Audacity is a cross-platform digital audio workstation and multi-track audio editor. It serves as a comprehensive suite for capturing live audio input, refining sound files through splicing and effects, and mixing multi-track audio files using a non-destructive waveform interface. The project functions as a VST3 plugin host, providing a software environment to load and execute audio effects and virtual instruments for real-time signal processing. It also includes an audio spectrum analyzer for visualizing frequencies and waveforms to identify specific sonic characteristics. The software cove

Spleeter is an AI audio source separation library and deep learning toolkit designed to split mixed music files into individual audio stems, such as vocals and drums. It provides a suite of pretrained models for isolating different instruments and voices from a recording. The toolkit includes capabilities for training and evaluating custom audio separation models using labeled datasets and configuration files. It also features utilities for measuring model performance by comparing separation outputs against reference datasets. The system manages audio processing through spectral representati

Orca is a grid-based live coding sequencer that uses single-letter operators placed on a two-dimensional grid to generate procedural music patterns. Each operator encodes its function in a single ASCII character, with column position determining timing and rows defining data flow paths. Execution advances frame-by-frame, and clock operators produce periodic bang events to drive the sequence forward. The system acts as a MIDI, OSC, and UDP controller, sending note events, control changes, and messages over configurable ports to control synthesizers and audio software in real time. It supports

Matchering is an audio mastering tool and Python library designed to match the frequency balance and loudness of a target track to a specific reference track. It functions as a reference-based mastering system that aligns a target signal's spectral envelope, RMS, and peak amplitude with those of a chosen reference file. The project utilizes a multi-stage processing pipeline featuring an FFT spectral matching engine to adjust frequency response. It ensures output quality through the use of a brickwall limiter to prevent signal clipping while preserving the original waveform shape. The tool pr

An audio server, programming language, and IDE for sound synthesis and algorithmic composition.

THIS REPO IS NOT MAINTAINED ANYMORE. Please see https://codeberg.org/tenacityteam/tenacity for Tenacity, which is maintained.

Tonal is a JavaScript music theory library designed for the computational analysis of scales, chords, and intervals. It serves as a harmonic analysis tool, a musical notation parser, and a pitch class set analyzer. The project provides specialized capabilities for rhythmic pattern generation, including the creation of Euclidean rhythms. It also functions as a toolkit for translating between different musical representations, such as scientific pitch notation, MIDI numbers, frequencies, and ABC notation. The library covers a broad range of music theory domains, including harmony and key manag

Tone.js is a web-based audio synthesizer and framework for the Web Audio API. It provides a digital signal processing toolkit, a musical timing engine, and a library for MIDI processing to create interactive music and synthesizers directly in the browser. The project features a musical timing engine that coordinates audio events and loops using BPM-relative timing and a global transport. It includes a MIDI processing library capable of converting binary MIDI files into JSON format to trigger sounds and control audio parameters in real time. Its capabilities cover polyphonic sound synthesis,

JUCE is a comprehensive C++ audio framework and digital signal processing library used to build cross-platform audio applications, audio plug-ins, and high-performance user interfaces. It serves as a development kit for creating audio processors compatible with industry-standard plugin formats for digital audio workstations, as well as a tool for MIDI and Open Sound Control communication between musical hardware and software. The framework is distinguished by its ability to maintain a single codebase for native desktop and mobile applications across multiple operating systems. It provides a f

Nannou is a creative coding framework for Rust designed for building interactive visual and audio sketches. It provides a loop-based API with hardware-accelerated 2D and 3D rendering, serving as a toolkit for generative art production and multimedia installation design. The framework is distinguished by its comprehensive hardware communication interface, which bridges software with physical devices via MIDI, OSC, DMX, serial, and laser DAC protocols. It also includes specialized projection mapping tools for warping visual output to fit non-standard physical surfaces and a dedicated GPU shader

This repository is a comprehensive collection of reference implementations and sample libraries for the Universal Windows Platform. It provides practical examples of how to use Windows Runtime APIs to build cross-device applications, including detailed guidance on XAML-based declarative user interfaces and DirectX-integrated rendering. The project distinguishes itself by providing a wide array of hardware integration suites, covering low-level communication with USB, Serial, I2C, SPI, and GPIO peripherals. It includes specialized implementations for mixed reality holographic rendering, advanc

Mindustry is a cross-platform game engine and factory automation simulation that combines resource management with tower defense strategy. Players construct complex supply chains and automated networks to process materials while building defensive structures to protect a core from waves of hostile mechanical forces. The project utilizes a deterministic lockstep networking model to ensure simulation consistency across desktop and mobile devices. It is built on an entity-component-system architecture and a tile-based grid simulation, allowing for the efficient management of thousands of active