Open-source alternatives to Miniaudio

NAudio is a .NET audio library that provides playback, recording, format conversion, and signal processing capabilities for Windows applications. It serves as an audio format converter between common formats like WAV, MP3, AAC, and AIFF using ACM or Media Foundation codecs, and functions as an audio playback and recording API through Windows audio APIs including WaveOut, DirectSound, ASIO, and WASAPI. The library includes an audio stream processor that can mix, trim, loop, fade, resample, and adjust pitch or channel count of audio streams with a floating-point engine. It also provides an audi

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

The Android NDK samples provide a comprehensive collection of code examples demonstrating how to integrate C and C++ native code into Android applications. This repository serves as a practical guide for developers utilizing the Android Native Development Kit to implement performance-critical application components that require direct hardware access and low-level system interaction. The project highlights the use of the Java Native Interface to bridge managed code with native modules, enabling cross-language function calls and efficient data exchange. It demonstrates how to manage native act

EZAudio is an audio library for Apple platforms that provides standardized interfaces for microphone capture, file playback, and hardware output. It functions as a low-latency audio processor and visualization framework designed to manipulate audio buffers and route signals with minimal delay. The project features a hardware-accelerated waveform renderer for drawing real-time audio amplitudes and rolling plots. It also includes a Fast Fourier Transform analyzer that converts time-domain audio samples into frequency-domain data for spectral analysis. The library covers a broad range of capabi

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

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 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

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

This project is a set of digital signal processing routines and firmware designed for building modular synthesis hardware and control voltage modules. It functions as a comprehensive system for Eurorack synthesis, incorporating a physical modeling synthesis engine, a granular synthesis module, and a dedicated control voltage processor. The system distinguishes itself through a specialized synthesis engine that simulates the acoustic properties of strings, reeds, and percussion using modal resonators. It also features a MIDI to CV converter for monophonic and polyphonic operation and a step se

GPAC is an open-source multimedia framework built around a pluggable filter graph pipeline, where modular processing units called filters connect into a directed graph to handle media workflows. At its core, the framework centers all media packaging and manipulation on the ISO Base Media File Format (ISOBMFF), with specialized tools for reading, writing, fragmenting, and encrypting MP4 and related containers. It also provides a declarative scene graph composition system for describing interactive multimedia scenes using MPEG-4 BIFS, X3D, SVG, or VRML syntax, alongside a hardware-accelerated re

Opus is a lossy audio compression standard and codec designed for high-quality speech and music transmission over the internet. It functions as a low-latency audio codec and network-resilient streamer, providing a framework for encoding and decoding digital audio. The project distinguishes itself through the support of multi-channel ambisonics for immersive three-dimensional spatial audio reproduction. It is specifically optimized for real-time interactive communication, utilizing dynamic bitrate adjustment and forward error correction to maintain audio quality on unstable networks. The syst

This project is a scientific computing framework for the .NET ecosystem, providing a comprehensive suite of libraries for numerical analysis, statistics, and mathematical optimization. It serves as a foundational toolkit for developing applications in machine learning, digital signal processing, and computer vision. The framework provides specialized toolkits for training and deploying predictive models, including neural networks, support vector machines, and decision trees. It further distinguishes itself with deep integrations for real-time visual analysis, such as object tracking and facia

Aubio is an audio analysis and digital signal processing library designed for music information retrieval. It provides a suite of tools for extracting musical features, estimating fundamental frequencies, and tracking rhythmic pulses in audio streams. The library specializes in the detection of pitch and beat, enabling the extraction of musical notes and the estimation of overall tempo. It also includes capabilities for automatic onset detection to identify the start of sonic events and the separation of audio signals into percussive transients and steady-state tonal components. The system c

rnnoise is a real-time speech denoising library that uses a recurrent neural network to suppress background noise from live voice audio. It is implemented as a lightweight C library with a minimal API, designed for easy integration into audio applications that need low-latency noise reduction. The library employs a gated recurrent unit (GRU) architecture and frequency-domain feature extraction to capture temporal dependencies in speech, operating on short audio frames sequentially for streaming use. It also includes a training pipeline that allows users to train custom noise suppression model

librespot is an open-source audio streaming client and library used to implement custom music players that authenticate and stream audio from the Spotify service. It functions as a framework for fetching, decoding, and routing remote audio streams to various system backends and audio sinks. The project specifically implements a Spotify Connect receiver, allowing it to act as a remote-controllable playback endpoint that appears as a selectable device within other Spotify applications. This enables the creation of virtual playback devices, headless music playback on remote servers, and the inte

This project is a cross-platform mobile audio player and native audio playback engine for React Native. It functions as a media session manager that integrates audio controls into device lock screens, system notifications, and external Bluetooth headsets. The library features a dedicated mobile audio caching engine that preloads and stores content on disk to enable offline playback and gapless transitions. It also includes an automotive media interface that exposes audio content and playback controls to vehicle head units and car dashboards through hierarchical media browsing. The system cov

Harmonoid is a local music player focused on high fidelity audio playback and comprehensive music library management. It indexes local audio files into a structured database to facilitate the organization and retrieval of large collections based on artist, album, and genre. The project features advanced playback controls, including gapless transitions, crossfading, and manual adjustments for pitch, speed, and volume boosting. It also supports synchronized lyric displays sourced from embedded tags, local files, or online providers. Additional capabilities include direct editing of internal au

SoundJS is a JavaScript audio library and asset manager designed to load and play audio across different browsers using a consistent API. It serves as a wrapper that abstracts the Web Audio API and HTML5 Audio to provide a cross-platform playback system. The project ensures consistent sound across devices by supporting Web Audio, HTML5, and mobile plugins. It includes specific mechanisms for mobile environments, such as unlocking audio playback on iOS via user-initiated touch events and managing playback continuity during screen locks. The library covers asset management through the registra

SoundManager2 is a JavaScript audio API and cross-browser audio engine designed to provide consistent playback across different web browsers and devices. It functions as an HTML5 audio wrapper and playback manager that abstracts native APIs into a unified interface, ensuring compatibility through an automatic switching mechanism between available audio backends and codecs. The library distinguishes itself with an RTMP audio streamer for network communication with media servers and a built-in ID3 metadata parser for extracting track titles, artist information, and genre tags from audio files.

BespokeSynth is a modular synthesizer environment that combines a node-based audio graph routing system with a live scripting bridge, enabling real-time patching and control without recompilation. Its architecture integrates a granular synthesis engine, FFT-based spectral processing, a MIDI Polyphonic Expression pipeline, and a Euclidean rhythm generator, all within a freeform workspace designed for live experimentation. The project distinguishes itself through its live coding capabilities, allowing Python scripts to create, modify, and control synthesis parameters at runtime, and its plugin

SaltPlayerSource is an Android audio player application that plays local audio files stored on the device, supporting formats such as FLAC. It integrates with Android Auto and Joviincar in-vehicle systems to display playback metadata and transport controls on car infotainment screens, and streams audio to Miracast-compatible wireless display receivers. The application extends playback control to OPPO's Fluid Cloud platform, allowing users to show and control playback from the notification area. It also renders scrolling song lyrics directly into the system status bar on supported Android devi

Surge is a polyphonic software synthesizer and VST plugin designed for complex sound generation. It functions as a hybrid synthesis engine, combining subtractive, wavetable, frequency modulation, and physical modeling techniques to produce audio. The project distinguishes itself through extensive microtuning capabilities, supporting non-standard musical scales and intonations via industry-standard tuning files. It also features an Open Sound Control compatible architecture for remote parameter management and hardware synchronization. The system covers a broad range of audio engineering capab

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,

Xiaomusic is a remote media control system designed for Xiaomi smart speaker integration. It enables the streaming of custom audio sources and network playlists to compatible hardware via a centralized software interface. The system manages network audio streaming by loading external JSON configurations and parsing M3U playlist files. It includes capabilities for directory-based file discovery to index local audio files and performs dynamic audio format conversion to ensure compatibility with the hardware output device. Playback is managed through a command-driven interface that supports tra

NuttX is a POSIX-compliant real-time operating system designed for microcontrollers ranging from 8-bit to 64-bit architectures. It provides a deterministic execution environment with a real-time task scheduler and a POSIX embedded kernel to ensure portable code execution across diverse hardware targets. The project distinguishes itself through a comprehensive hardware abstraction layer that provides standardized drivers for I2C, SPI, CAN, and USB across various semiconductor chipsets. It also features an embedded networking stack supporting TCP, UDP, IPv4, and IPv6, alongside industrial proto

SFML is a cross-platform C++ multimedia library designed for building 2D games and interactive applications. It provides a unified interface for hardware-accelerated graphics, audio playback, and window management, allowing developers to create visual software that functions consistently across different operating systems. The library abstracts native windowing and graphics APIs, enabling the use of object-oriented primitives to render shapes, sprites, and text. It includes a dedicated audio engine that supports sound effects and music with controls for volume, pitch, and spatial positioning,

Amethyst is a data-driven game engine written in Rust for building high-performance 2D and 3D games. It is built on an entity component system architecture that decouples game state from logic to enable parallel processing and reusable code. The framework features a glTF 3D renderer for importing scenes and geometry using physically based materials. It also serves as a multiplayer game framework, providing network transport abstractions and state synchronization for real-time online experiences. The engine covers a broad range of capabilities, including hybrid 2D/3D rendering, asynchronous a