An easy to use audio filtering library made from webrtc code, used in libtoxcore.

Gnaural is a programmable auditory binaural beat synthesizer intended to be used for brainwave entrainment. Gnaural supports creation of binaural beat tracks of different frequencies and exporting of tracks into different audio formats. Gnaural can also be linked over the internet with other Gnaural instances, allowing synchronous sessions between many users.

MDA-LV2 is an LV2 port of the MDA plugins. It includes effects and a few instrument plugins.

Cuetools is a set of programs that are useful for manipulating and using CUE sheet (cue) files and Table of Contents (toc) files. CUE and TOC files are a way to represent the layout of a data or audio CD in a machine-readable ASCII format.

Qsynth is a GUI front-end application for the FluidSynth SoundFont synthesizer written in C++.

This project is a rebirth of a direct integration between Bluez and ALSA. Since Bluez >= 5, the built-in integration has been removed in favor of 3rd party audio applications. From now on, Bluez acts as a middleware between an audio application, which implements Bluetooth audio profile, and a Bluetooth audio device. BlueALSA registers all known Bluetooth audio profiles in Bluez, so in theory every Bluetooth device (with audio capabilities) can be connected. In order to access the audio stream, one has to connect to the ALSA PCM device called bluealsa. The device is based on the ALSA software PCM plugin.

The infamous plugins are a collection of LV2 audio plugins for live performances. The plugins include a cellular automaton synthesizer, an envelope follower, distortion effects, tape effects and more.

A curated selection of 9,795 ProjectM/Milkdrop presets, meant to be included in any projectM-based application.

Autotalent is a LADSPA plugin for real-time pitch-correction. Among its controls are allowable notes, strength of correction, LFO for vibrato and formant warp.

yabridge is Yet Another way to use Windows audio plugins. It supports using Windows VST2, VST3, and CLAP plugins in plugin hosts as if they were native plugins, with optional support for plugin groups to enable inter-plugin communication for VST2 plugins and quick startup times.

The Portable C Audio Library (pcaudiolib) provides a C API to different audio devices such as ALSA or PulseAudio.

This package provides a LADSPA plugin to manipulate the stereo width of audio signals.

FDK is a library for encoding and decoding Advanced Audio Coding (AAC) format audio, developed by Fraunhofer IIS, and included as part of Android. It supports several Audio Object Types including MPEG-2 and MPEG-4 AAC LC, HE-AAC (AAC LC + SBR), HE-AACv2 (LC + SBR + PS) as well AAC-LD (low delay) and AAC-ELD (enhanced low delay) for real-time communication. The encoding library supports sample rates up to 96 kHz and up to eight channels (7.1 surround).

JamesDSP is an audio effect processor for PipeWire and PulseAudio clients, featuring:

• Automatic bass boost: Frequency-detecting bass-boost

• Automatic dynamic range compressor: automated multiband dynamic range adjusting effect

• Complex reverberation IIR network (Progenitor 2)

• Interpolated FIR equalizer with flexible bands

• Arbitrary response equalizer (also known as GraphicEQ from EqualizerAPO)

• AutoEQ database integration (requires network connection)

• Partitioned convolver (Auto segmenting convolution): Mono, stereo, full/true stereo (LL, LR, RL, RR) impulse response

• Crossfeed: Realistic surround effects

• Soundstage wideness: A multiband stereo wideness controller

• ViPER-DDC: Parametric equalization on audio and creating VDC input files

• Analog modeling: An aliasing-free even harmonic generator

• Output limiter

• Scripting engine: Live programmable DSP using the EEL2 scripting language

• Scripting IDE featuring syntax highlighting, basic code completion, dynamic code outline window, console output support and detailed error messages with inline code highlighting

Xmp is a portable module player that plays over 90 mainstream and obscure module formats, including Protracker MOD, Fasttracker II XM, Scream Tracker 3 S3M and Impulse Tracker IT files.

audio-to-midi converts audio files to multichannel MIDI files. It accomplishes this by performing FFTs on all channels of the audio data at user-specified time steps. It then separates the resulting frequency analysis into equivalence classes which correspond to the twelve tone scale; the volume of each class being the average volume of its constituent frequencies. This data is then formatted to MIDI and written to disk.

ZToolkit (Ztk) is a cross-platform GUI toolkit heavily inspired by GTK. It handles events and low level drawing on behalf of the user and provides a high-level API for managing the UI and custom widgets. ZToolkit is written in C and was created to be used for building audio plugin UIs, where the dependencies often need to be kept to a minimum.

This package provides bindings for PortAudio v19, the cross-platform audio input/output stream library.

SoundTouch is an audio processing library for changing the tempo, pitch and playback rates of audio streams or audio files. It is intended for application developers writing sound processing tools that require tempo/pitch control functionality, or just for playing around with the sound effects.

DarkIce is a live audio streamer. It takes audio input from a sound card, encodes it into Ogg Vorbis and/or mp3, and sends the audio stream to one or more IceCast and/or ShoutCast servers.

This package contains wrappers for accessing the ALSA API from Python. It is currently fairly complete for PCM devices, and has some support for mixers.

liblo is a lightweight library that provides an easy to use implementation of the Open Sound Control (OSC) protocol.

FreePats is a project to create a free (as in free software) collection of digital instruments for music production. This sound bank is a partial release of the General MIDI sound set.

normalize is an audio track normalizer. For a collection of tracks with varying volumes, it is able to make the loudness consistent between them. This is helpful when making mixtapes, for example. It can work with WAV and MP3 files.