TwoLAME is an optimised MPEG Audio Layer 2 (MP2) encoder based on tooLAME by Mike Cheng, which in turn is based upon the ISO dist10 code and portions of LAME.

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.

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.

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.

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.

freealut is the OpenAL Utility Toolkit.

cyanrip is a command line tool for ripping CDs. It uses MusicBrainz to name and tag each track, and to download and embed cover art. cyanrip supports encoding tracks to multiple formats in parallel and automatically verifies checksums.

The pa-notify daemon sends notifications about the current volume level of PulseAudio or PipeWire using libnotify.

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.

This package provides a barebones, fast LV2 bass enhancement plugin.

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

This package provides a conversion utility for LV2 Plugin developers to generate C headers from Turtle files.

fmsynth is an LV2 plugin which implements an FM (Frequency Modulation) synthesizer. Unlike most FM synth implementations in software, this FM synthesizer does not aim to emulate or replicate a particular synth (like DX7) or FM chip.

The blvco LADSPA plugin provides three anti-aliased oscillators:

1. Pulse-VCO, a dirac pulse oscillator with flat amplitude spectrum

2. Saw-VCO, a sawtooth oscillator with 1/F amplitude spectrum

3. Rec-VCO, a square / rectangle oscillator

All oscillators are low-pass filtered to provide waveforms similar to the output of analog synthesizers such as the Moog Voyager.

OpenSLES is a royalty-free, cross-platform, hardware-accelerated audio API tuned for embedded systems. It provides a standardized, high-performance, low-latency method to access audio functionality for developers of native applications on embedded mobile multimedia devices, enabling straightforward cross-platform deployment of hardware and software audio capabilities, reducing implementation effort, and promoting the market for advanced audio.

python-resampy implements the band-limited sinc interpolation method for sampling rate conversion as described by Julius O. Smith at the Digital Audio Resampling Home Page.

This package provides Steve Harris's LADSPA plugins.

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.

This package provides an encoder for the LDAC high-resolution Bluetooth audio streaming codec for streaming at up to 990 kbps at 24 bit/96 kHz.

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.

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.

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.

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.

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