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.

This package provides a python API to read and write MIDI files.

Streamripper records shoutcast-compatible streams. For shoutcast style streams it finds the “meta data” or track separation data, and uses that as a marker for where the track should be separated.

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.

The LV2 Toolkit (LVTK) contains libraries that wrap the LV2 C API and extensions into easy to use C++ classes. It is the successor of lv2-c++-tools.

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

LV2 is an open specification for audio plugins and host applications. At its core, LV2 is a simple stable interface, accompanied by extensions which add functionality to support the needs of increasingly powerful audio software.

libkeyfinder is a small C++11 library for estimating the musical key of digital audio.

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

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.

Guitarix is a virtual guitar amplifier running JACK. Guitarix takes the signal from your guitar as a mono-signal from your sound card. The input is processed by a main amp and a rack-section. Both can be routed separately and deliver a processed stereo-signal via JACK. You may fill the rack with effects from more than 25 built-in modules including stuff from a simple noise gate to modulation effects like flanger, phaser or auto-wah.

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.

This package contains the resample and windowfilter command line utilities. The resample command allows changing the sampling rate of a sound file, while the windowfilter command allows designing Finite Impulse Response (FIR) filters using the so-called window method.

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.

Dcadec is a DTS Coherent Acoustics surround sound decoder with support for HD extensions.

DRC is a program used to generate correction filters for acoustic compensation of HiFi and audio systems in general, including listening room compensation. DRC generates just the FIR correction filters, which can be used with a real time or offline convolver to provide real time or offline correction. DRC doesn't provide convolution features, and provides only some simplified, although really accurate, measuring tools.

WebRTC-Audio-Processing library based on Google's implementation of WebRTC.

This Python module provides bindings for the PortAudio library and a few convenience functions to play and record NumPy arrays containing audio signals.

LibOpenMPT is a cross-platform C++ and C module playback library. It is based on the player code of the Open ModPlug Tracker project.

librosa is a python package for music and audio analysis. It provides the building blocks necessary to create music information retrieval systems.

Tao is a software package for sound synthesis using physical models. It provides a virtual acoustic material constructed from masses and springs which can be used as the basis for building quite complex virtual musical instruments. Tao comes with a synthesis language for creating and playing instruments and a C++ API for those who would like to use it as an object library.

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

Tao is a software package for sound synthesis using physical models. It provides a virtual acoustic material constructed from masses and springs which can be used as the basis for building quite complex virtual musical instruments. Tao comes with a synthesis language for creating and playing instruments and a C++ API for those who would like to use it as an object library.

QJackRcd is a simple graphical stereo recorder for JACK supporting silence processing for automatic pause, file splitting, and background file post-processing.