Open-source alternatives to Oboe

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

VDO.Ninja is a low-latency peer-to-peer media routing service and video streaming platform designed to integrate remote audio and video feeds into professional production workflows. It functions as a WebRTC broadcast integration tool and studio controller, allowing for the direct transmission of high-definition media between publishers and viewers with minimal delay. The platform distinguishes itself through extensive protocol bridging, converting between WebRTC, WHIP, WHEP, SRT, and RTMP to ensure compatibility across diverse network environments and professional studio software. It includes

MPD is a headless music server daemon that indexes audio libraries and streams music to local or remote outputs. It functions as a music library manager and network audio streamer, providing a remote audio control protocol that allows external clients to manage playback, playlists, and database queries. The system acts as a multiroom audio coordinator, synchronizing audio distribution across multiple networked clients and hardware devices. It supports a variety of remote management capabilities, including a dedicated control API and the ability to broadcast audio streams over network protocol

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

nih-plug is an audio plugin SDK and development framework providing a set of tools and traits for processing audio and MIDI data in a real-time safe environment. It functions as a cross-format plugin wrapper, allowing a single implementation to be exported into multiple industry-standard audio plugin formats, including VST, CLAP, and LV2. The project includes a retained-mode GUI framework for creating interactive user interfaces and parameter controls for audio processors. It also provides a real-time audio library that utilizes hardware acceleration and asynchronous task management to mainta

This project is a multi-room music server and library aggregator that centralizes local audio files and various streaming services into a single unified database. It functions as a media controller for DLNA and UPnP devices, enabling the management of music, podcasts, and audiobooks across networked speakers. The system is distinguished by its ability to synchronize audio playback across multiple speakers and brands simultaneously. It features a digital signal processor for loudness normalization and frequency correction, alongside an acoustic fingerprinting engine used for metadata enrichmen

This project is a system audio processor and digital signal processing engine designed to enhance system-wide sound volume and clarity. It functions as a high-fidelity sound enhancer and parametric audio equalizer that shapes the sonic profile and timbre of audio across all output devices. The software utilizes a virtual audio device driver to intercept system audio streams at the kernel level, redirecting them through a processing pipeline. This allows for real-time sound processing and low-latency audio filtration to minimize the delay between sound generation and output. The system covers

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

Recorder is a JavaScript library for capturing audio from microphones and encoding the resulting data into multiple formats, including MP3, WAV, and WebM. It provides a unified interface for cross-platform audio recording across web browsers and mobile applications. The library functions as an audio signal processing tool and waveform visualizer, offering real-time visual feedback through frequency histograms and waveforms. It includes specialized capabilities for encoding and decoding dual-tone multi-frequency telephone keypad tones. The project covers a broad range of audio manipulation ca

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

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

LMMS is a digital audio workstation and MIDI sequencer designed for composing, arranging, and mixing music. It functions as a comprehensive production environment that integrates a MIDI sequencer, a sample-based synthesizer, and an audio mixing console. The project distinguishes itself through a versatile synthesis engine that includes additive synthesis, wavetable generation, and emulations of vintage hardware such as NES audio and FM chips. It also serves as a VST plugin host, allowing for the integration of third-party virtual instruments and audio effects via a standardized interface. Be

Shairport-sync is an AirPlay audio streaming receiver that enables the reception of wireless audio streams from Apple devices and routes them to system sound servers or hardware devices. Its primary purpose is to facilitate multi-room audio synchronization, aligning output across multiple playback devices to ensure content plays in unison. The project distinguishes itself through advanced digital signal processing, including impulse-response convolution filtering to correct frequency response. It provides precise audio timing adjustments to compensate for amplifier latency and offers extended

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

This project is a comprehensive reference guide and directory of web browser capabilities. It serves as a technical map for accessing native operating system functions, hardware interfaces, and standard web APIs to bridge the gap between web applications and desktop or mobile environments. The resource provides detailed guidance on implementing Progressive Web App features, including offline caching, push notifications, and native installation prompts. It also catalogs methods for interacting with hardware peripherals via USB, Bluetooth, and NFC, as well as reading raw data from device sensor

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

AudioNoise is a digital audio effects library and signal processor designed to manipulate audio waveforms through digital filtering and echo simulations. It functions as an analog circuit emulator, simulating the behavior of hardware guitar pedals and phasers. The project provides tools for experimental sound processing, including the generation of random digital noises and textures. It also includes an audio waveform visualizer that renders digital audio data as visual graphs to analyze the results of signal processing. The library implements capabilities for digital audio processing and an

This project is an RTMP media streaming SDK and a real-time communication framework designed for pushing and playing audio and video streams. It provides tools for interactive broadcasting, low-latency voice and video calls, and a cross-platform media player compatible with Windows, iOS, and Android. The toolkit enables interactive live broadcasting with support for multi-host interactions and the ability to push streams to distribution servers via CDN. It includes a cloud recording manager for capturing live sessions and saving them as files to cloud storage, along with a system for composit

DeepFilterNet is a deep learning noise suppression framework and real-time audio filter designed to isolate speech and remove background noise from audio signals. It functions as a speech enhancement tool and audio processing middleware that cleans microphone input and speaker output for communication applications. The system operates as an audio server interceptor, delivering noise-suppressed streams between hardware devices and software applications. It provides capabilities for microphone signal cleaning and audio output filtering, including the creation of virtual noise-suppressed microph

Metrolist is a multi-functional audio player and YouTube music client. It serves as a music library manager and a synchronized lyrics viewer, providing a unified interface for streaming audio and video content. The application distinguishes itself through real-time music synchronization, which allows multiple users to share a coordinated listening experience. It also includes automated translation tools for synchronized lyrics and a dedicated system for streaming audio from video sharing services with background playback and offline caching. The platform covers a broad set of capabilities, i

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

Jasper Client is a voice computing client and extensible speech framework designed to translate natural language speech into hardware actions and service requests. It functions as a voice command interface that manages the end-to-end process of audio capture, transcription, and action execution. The system features a modular architecture that allows for the integration of custom plugins, various speech recognition engines, and synthesis providers. This plugin-based approach supports the addition of new speakers and regional language capabilities without altering the core logic. The client in

This project is an acoustic keystroke recognition system and audio side-channel analysis tool. It identifies typed text by analyzing audio recordings of keyboard sounds through waveform correlation and linguistic frequency analysis. The system distinguishes itself by combining digital signal processing with a substitution cipher decryptor. It uses simulated annealing and n-gram probability maps to recover plaintext from encoded strings and identifies specific keys by comparing captured waveforms against trained sound profiles. The toolkit covers a broad range of capabilities, including real-

PLDroidPlayer is an Android video player SDK and customizable media playback framework. It provides a cross-platform media engine and a hardware-accelerated video decoder that supports multiple hardware architectures and includes an automatic fallback to software processing. The project functions as a network-optimized streaming client featuring custom DNS resolution and automatic latency optimization to reduce the delay in live broadcasts. It includes specialized capabilities for secure content playback of encrypted video streams using specific provider protocols. The framework covers a wid

SmarterStreaming is a cross-platform SDK for hardware-accelerated audio and video capture, encoding, and streaming. It provides a complete media pipeline for low-latency RTMP and RTSP streaming, and includes an embedded lightweight RTSP server that can serve live feeds directly from the source device to local network clients without requiring a separate server. The SDK also integrates with GB28181 surveillance platforms, enabling compliant device registration and streaming for standardized video monitoring systems. The project distinguishes itself through a set of integrated capabilities for

dash.js is a browser-based JavaScript player for streaming adaptive video and audio content using the MPEG-DASH standard. It functions as an adaptive bitrate streaming client that adjusts media quality in real time based on network conditions and buffer levels. The project includes a playback engine capable of decrypting protected content through digital rights management systems and a specialized player for reducing latency in live broadcast events. It also serves as a playback metrics engine for monitoring and reporting real-time quality-of-experience data. The software covers a broad rang

Android Media is a framework library providing the primary system components for audio and video playback, session management, and media routing on Android. It includes a multimedia API for processing raw media streams, managing MIDI devices, and rendering video frames. The project features a dedicated metadata manager for organizing descriptive labels, content channels, and DRM configurations, alongside a session controller that synchronizes playback state with external controllers and manages media shortcuts for wearable devices. The library covers a broad range of capabilities including a