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

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

Control a Jack server. Allows you to plug various sources into various outputs and to start, stop and configure jackd

Libltc is a POSIX-C Library for handling Linear/Longitudinal Time Code (LTC) data.

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.

OpenAL provides capabilities for playing audio in a virtual 3D environment. Distance attenuation, doppler shift, and directional sound emitters are among the features handled by the API. More advanced effects, including air absorption, occlusion, and environmental reverb, are available through the EFX extension. It also facilitates streaming audio, multi-channel buffers, and audio capture.

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

Python-SoXR is a Python wrapper of libsoxr, a high quality, one-dimensional sample-rate conversion library.

This is a free software version of SGI's audiofile library. It provides a uniform programming interface for processing of audio data to and from audio files of many common formats.

Currently supported file formats include AIFF/AIFF-C, WAVE, and NeXT/Sun .snd/.au, BICS, and raw data. Supported compression formats are currently G.711 mu-law and A-law.

TiMidity++ is a software synthesizer. It can play MIDI files by converting them into PCM waveform data; give it a MIDI data along with digital instrument data files, then it synthesizes them in real-time, and plays. It can not only play sounds, but also can save the generated waveforms into hard disks as various audio file formats.

Copies a stream, skipping everything except MP3 frames with valid headers. This can be used to copy and concatenate streams, even if they contain extra garbage.

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

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

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.

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

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

Faust is a programming language for realtime audio signal processing.

redumper is a low-level byte perfect CD disc dumper. It supports incremental dumps, advanced SCSI/C2 repair, intelligent audio CD offset detection, among other features. redumper is also a general purpose DVD/HD-DVD/Blu-ray disc dumper.

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

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.

libdjinterop is a C++ library that allows access to database formats used to store information about DJ record libraries.

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.

EasyEffects is an advanced audio manipulation tool providing a graphical user interface to apply various effects and filters to audio streams using Pipewire. Effects can be applied in real time to audio inputs or outputs such as a microphone to reduce noise or apply many other effects including:

• Auto gain

• Bass enhancer

• Bass loudness

• Compressor

• Convolver

• Crossfeed

• Crystalizer

• De-esser

• Delay

• Echo Canceller

• Equalizer

• Exciter

• Filter (low-pass, high-pass, band-pass and band-reject modes)

• Gate

• Limiter

• Loudness

• Maximizer

• Multiband compressor

• Multiband gate

• Noise reduction

• Pitch

• Reverberation

• Speech Processor

• Stereo tools

midicomp can manipulate SMF (Standard MIDI File) files. It can both read and write SMF files in 0 or format 1 and also read and write its own plain text format. This means a SMF file can be turned into easily parseable text, edited with any text editor or filtered through any script language, and recompiled back into a binary SMF file.