The SoX Resampler library (libsoxr) performs one-dimensional sample-rate conversion. It may be used, for example, to resample PCM-encoded audio.

JACK is a low-latency audio server. It can connect a number of different applications to an audio device, as well as allowing them to share audio between themselves. JACK is different from other audio server efforts in that it has been designed from the ground up to be suitable for professional audio work. This means that it focuses on two key areas: synchronous execution of all clients, and low latency operation.

An LV2 port of the mda Piano VSTi.

RNNoise is a library that uses deep learning to apply noise suppression to audio sources with voice presence. This package provides an LV2 audio plugin.

Lilv is a C library to make the use of LV2 plugins as simple as possible for applications. Lilv is the successor to SLV2, rewritten to be significantly faster and have minimal dependencies.

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

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.

The Odio SACD shared library is a decoding engine which takes a Super Audio CD source and extracts a 24-bit high resolution WAV file. It handles both DST and DSD streams.

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.

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

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

This C library provides an encoder and a decoder for the GSM 06.10 RPE-LTP lossy speech compression algorithm.

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 LSP DSP library provides a set of functions that perform SIMD-optimized computing on several hardware architectures. All functions currently operate on IEEE-754 single-precision floating-point numbers.

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

VO-AACENC is the VisualOn implementation of Advanced Audio Coding (AAC) encoder.

Libmixed is a library for real-time audio processing pipelines for use in audio/video/games. It can serve as a base architecture for complex DSP systems.

RSound allows you to send audio from an application and transfer it directly to a different computer on your LAN network. It is an audio daemon with a much different focus than most other audio daemons.

This package provides a Python high-level interface and ctypes-based bindings for PulseAudio (libpulse), to use in simple synchronous code. This wrapper is mostly for mixer-like controls and introspection-related operations, as opposed to e.g. submitting sound samples to play and player-like clients.

libsoundio is a C library providing audio input and output. The API is suitable for real-time software such as digital audio workstations as well as consumer software such as music players.

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

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

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

Jalv is a simple but fully featured LV2 host for JACK. It runs LV2 plugins and exposes their ports as JACK ports, essentially making any LV2 plugin function as a JACK application.