libmt32emu is a C/C++ library which approximately emulates the Roland MT-32, CM-32L and LAPC-I synthesizer modules. It is part of the Munt project.

Butt is a tool to stream audio to a ShoutCast or Icecast server.

SBSMS (Subband Sinusoidal Modeling Synthesis) is software for time stretching and pitch scaling of audio. This package contains the library.

Audacity is a multi-track audio editor designed for recording, playing and editing digital audio. It features digital effects and spectrum analysis tools.

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.

LADSPA is a standard that allows software audio processors and effects to be plugged into a wide range of audio synthesis and recording packages.

Suil is a lightweight C library for loading and wrapping LV2 plugin UIs.

Suil makes it possible to load a UI of a toolkit in a host using another toolkit. The API is designed such that hosts do not need to explicitly support specific toolkits – if Suil supports a particular toolkit, then UIs in that toolkit will work in all hosts that use Suil automatically.

Suil currently supports every combination of Gtk, Qt, and X11.

This package provides a simple sound library for C++.

Libmodplug renders mod music files as raw audio data, for playing or conversion. mod, .s3m, .it, .xm, and a number of lesser-known formats are supported. Optional features include high-quality resampling, bass expansion, surround and reverb.

Pyliblo is a Python wrapper for the liblo Open Sound Control (OSC) library. It supports almost the complete functionality of liblo, allowing you to send and receive OSC messages using a nice and simple Python API. Also included are the command line utilities send_osc and dump_osc.

Ecasound is a software package designed for multitrack audio processing. It can be used for simple tasks like audio playback, recording and format conversions, as well as for multitrack effect processing, mixing, recording and signal recycling. Ecasound supports a wide range of audio inputs, outputs and effect algorithms. Effects and audio objects can be combined in various ways, and their parameters can be controlled by operator objects like oscillators and MIDI-CCs. A versatile console mode user-interface is included in the package.

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.

Zita-alsa-pcmi is a C++ wrapper around the ALSA API. It provides easy access to ALSA PCM devices, taking care of the many functions required to open, initialise and use a hw: device in mmap mode, and providing floating point audio data.

mp3guessenc is a command line utility that tries to detect the encoder used for an MPEG Layer III (MP3) file, as well as scan any MPEG audio file (any layer) and print a lot of useful information.

IR is a low-latency, real-time, high performance signal convolver especially for creating reverb effects. It supports impulse responses with 1, 2 or 4 channels, in any soundfile format supported by libsndfile.

libebur128 is a C library that implements the EBU R 128 standard for loudness normalisation.

SBSMS (Subband Sinusoidal Modeling Synthesis) is software for time stretching and pitch scaling of audio. This package contains the library.

WildMIDI is a simple software midi player which has a core softsynth library that can be used with other applications.

This package provides pythonic libsndfile wrapper to read and write audio files.

This C++ library implements the Butterworth, RBJ, and Chebychev IIR filters. Samples are processed one by one, in real time. It can easily import coefficients generated with Python (scipy). It also avoids memory leaks by allocating memory at compile time, using templates, instead of calling malloc() or new.

XJackFreak is an audio analysis and equalizing tool for the Jack Audio Connection Kit. It can display the FFT of any input, modify it and output the result.

Carla is a modular audio plugin host, with features like transport control, automation of parameters via MIDI CC and remote control over OSC. Carla currently supports LADSPA (including LRDF), DSSI, LV2, VST2, and VST3 plugin formats, plus SF2 and SFZ file support. It uses JACK as the default and preferred audio driver but also supports native drivers like ALSA.

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

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