Audio

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Linux

  • Linuxaudio.org is a not-for-profit consortium of libre software projects and artists, companies, institutions, organizations, and hardware vendors using Linux kernel-based systems and allied libre software for audio-related work, with an emphasis on professional tools for the music, production, recording, and broadcast industries.

OSS

ALSA

amixer -c 0 | pcregrep "control"
  • ASIO4ALL - Universal ASIO Driver For WDM Audio

Pulseaudio

pacmd dump

JACK

  • JACK is system for handling real-time, low latency audio (and MIDI). It runs on GNU/Linux, Solaris, FreeBSD, OS X and Windows (and can be ported to other POSIX-conformant platforms). It can connect a number of different applications to an audio device, as well as allowing them to share audio between themselves. Its clients can run in their own processes (ie. as normal applications), or can they can run within the JACK server (ie. as a "plugin"). JACK also has support for distributing audio processing across a network, both fast & reliable LANs as well as slower, less reliable WANs.
pasuspender -- jackd

jackd -R -P89 -s -dalsa -dhw:0 -r48000 -p256 -n3

jack2 dbus 

jack_control start
  starts the jack server
jack_control stop
  stops the jack server
jack_control ds alsa
  selects alsa as the driver (backend)
jack_control eps realtime True
  set engine parameters, such as realtime
jack_control dps period 256
  set the driver parameter period to 256

Integration

  • realtimeconfigquickscan - Linux configuration checker for systems to be used for real-time audio. Inspects a linux installation, and makes suggestions for improving realtime/audio performance.

Sessions

  • ladish is a session management system for JACK applications on GNU/Linux. Its aim is to allow you to have many different audio programs running at once, to save their setup, close them down and then easily reload the setup at some other time. ladish doesn't deal with any kind of audio or MIDI data itself; it just runs programs, deals with saving/loading (arbitrary) data and connects JACK ports together. It can also be used to move entire sessions between computers, or post sessions on the Internet for download.

Control

  • Patchage is a modular patch bay for audio and MIDI systems based on Jack and Alsa.
  • JACK Rack is an effects "rack" for the JACK low latency audio API. The rack can be filled with LADSPA effects plugins and can be controlled using the ALSA sequencer. It's phat; it turns your computer into an effects box.
  • cabestan is a small GTK+ program that interfaces with the jack audio connection kit to play, rewind, or fast forward the stream via the jack transport interface.

Video

Processing

  • JAMin is the JACK Audio Connection Kit (JACK) Audio Mastering interface. JAMin is an open source application designed to perform professional audio mastering of stereo input streams. It uses LADSPA for digital signal processing (DSP)

Network

  • Netjack is a Realtime Audio Transport over a generic IP Network. It is fully integrated into JACK. Syncs all Clients to one Soundcard so no resampling or glitches in the whole network. Packet loss is now also handled gracefully. By using the celt codec, its even possible, that single packet losses get masked by the Packet Loss Concealment Code.

Tools

CRAS

Articles

GStreamer

MP3 tools

Players

See also Video#Players

mpg123

mplayer

MPD

ncmpcpp

Larger GUI

Other

Streaming

Editing

Audacity

Sweep

Production

REAPER

Ardour

Qtractor

LMMS

MusE

Non

  • Non - Powerful enough to form a complete studio, fast and light enough to run on low-end hardware like the eeePC or Raspberry Pi, and so responsive and reliable that it can be used live, the Non DAW Studio is a modular system composed of four main parts: Non Timeline, a non-destructive, non-linear audio recorder and arranger. Non Mixer, a live mixer with effects plugin hosting and advanced Ambisonics spatialization control. Non Sequencer, a live, pattern based MIDI sequencer, and finally, the Non Session Manager to tie together these applications and more into cohesive song-level units.

Other

Synth

Buzz

  • Buzz is the first ever "easy to use" free modular software based synthesizer. What this means is that the entire system is based on objects, which may be routed in a modular fashion, giving you the freedom to be as creative as you want. For example, if you wish to run 3 Physical Modelling synths and a Drum Machine through 2 seperate Stereo Delays, into a Mixer, through a Compressor and Parameteric EQ, and finally out to your speakers - no problem. Lay down your synths, connect the wires and you're done.

SuperCollider

  • SuperCollider is an environment and programming language for real time audio synthesis and algorithmic composition. It provides an interpreted object-oriented language which functions as a network client to a state of the art, realtime sound synthesis server.
  • Overtone is an open source audio environment being created to explore musical ideas from synthesis and sampling to instrument building, live-coding and collaborative jamming. We use the SuperCollider synth server as the audio engine, with Clojure being used to develop the APIs and the application. Synthesizers, effects, analyzers and musical generators can be programmed in Clojure.

Pure Data

Csound

  • Csound is the "ultimate" software synthesizer. Csound is an incredibly powerful signal processor. Csound is a program that runs on virtually every major hardware platform and Csound supports all operating systems. Most importantly, Csound is open source and Csound is FREE! For years now, Csound has been offering innovative sound designers, composers, and producers a unique and powerful palette with which to create and sculpt innovate and diverse works. Csound is not restricted to any style of music, and has been employed for many years in the creation of classical, pop, techno, ambient, and experimental avant-garde computer music, as well as music for film and television.

CLAM

  • CLAM is a software framework for research and application development on the audio and music domain. It provides means to perform complex audio signal analysis, transformations and synthesis. It also provides a uniform interface to common tasks on audio applications such as accessing audio devices and audio files, thread safe communication with the user interface and DSP algorithms recombination and scaling.

v.001

  • http://001.vade.info/ v.001 is a community driven, open source, modular solution for building easy to (re) use Max/MSP and Jitter patches targeted (but not limited to) visual performers and programmers.

Other

  • Echo Nest Remix is the Internet Synthesizer. Make amazing things from music, automatically. Turn any music or video into Python or JavaScript code.
  • DIN (DIN Is Noise) is a software musical instrument, uses the computer mouse to pick both the pitch (by moving horizontally) and the volume (by moving vertically) of a sound from an on-screen keyboard that displays the notes of the current scale and a number of microtones in-between. Bezier curves, FM and AM and control other parameters like stereo gater patterns, Delay feedback & volume patterns and Compressor patterns. Users can also create an unlimited number of drones pitched on any microtone and edit them in real-time.
  • http://boodler.org/ Boodler, is an open-source soundscape tool -- continuous, infinitely varying streams of sound. Boodler is designed to run in the background on a computer, maintaining whatever sound environment you desire. Boodler is extensible, customizable, and modular. Each soundscape is a small piece of Python code -- typically less than a page. A soundscape can incorporate other soundscapes; it can combine other soundscapes, switch between them, fade them in and out. This package comes with many example soundscapes. You can use these, modify them, combine them to arbitrary levels of complexity, or write your own.
  • WONDER is a software suite for using Wave Field Synthesis and Binaural Synthesis. It's primary platform is Linux, but it can be used under OSX too.
  • ZynAddSubFX is a open source software synthesizer capable of making a countless number of instruments, from some common heard from expensive hardware to interesting sounds that you'll boost to an amazing universe of sounds.
  • http://yoshimi.sourceforge.net/
  • AlsaModularSynth is a realtime modular synthesizer and effect processor. It features MIDI controlled modular software synthesis, Realtime effect processing with capture from e.g. "Line In" or "Mic In", Full control of all synthesis and effect parameters via MIDI, Integrated LADSPA Browser with search capability, JACK Support
  • horgand is a softsynth, really simple and easy to use, specially designed to produce organ sounds is also capable to generate other sound types like Electric Pianos ( Rhodes , Wurlitzer , DX E.Piano ) , Jazz Guitar , Strings , Brass , Fretless Bass, Accordion etc. using low CPU resources. horgand is based on a FM audio synthesizer with twenty carriers (20) without modulators in a plain based algorithm.
  • AUBE is a system for sound generation and processing. You can process audio on the fly by setting up arbitrary configurations of sound generators, sequencers and effects modules, through which sound is played, filtered, and recorded.
  • PHASEX is an experimental MIDI softsynth for Linux/ALSA/JACK with a synth engine built around flexible phase modulation and flexible oscillator/LFO sources. Modulations include AM, FM, offset PM, and wave select. PHASEX comes equipped with multiple filter types and modes, a stereo crossover delay and chorus with phaser, ADSR envelopes for amplif… 
beep
  beep the pc speaker any number of ways

speaker-test
  command-line speaker test tone generator for ALSA

Generative

Plugins

  • Rakarrack is a richly featured multi-effects processor emulating a guitar effects pedalboard. Effects include compressor, expander, noise gate, graphic equalizer, parametric equalizer, exciter, shuffle, convolotron, valve, flanger, dual flange, chorus, musicaldelay, arpie, echo with reverse playback, musical delay, reverb, digital phaser, analogic phaser, synthfilter, varyband, ring, wah-wah, alien-wah, mutromojo, harmonizer, looper and four flexible distortion modules including sub-octave modulation and dirty octave up. Most of the effects engine is built from modules found in the excellent software synthesizer ZynAddSubFX. Presets and user interface are optimized for guitar, but Rakarrack processes signals in stereo while it does not apply internal band-limiting filtering, and thus is well suited to all musical instruments and vocals. Rakarrack is designed for Linux distributions with Jack Audio Connection Kit.
  • Jost is the first open source multi-technology (native vst, ladspa, dssi) host in linux. It will mainly host a chain of plugins per instance, publishing jack, alsa and alsa_seq ports in order to be connected in your main stream flow. it still have some very good features that makes it a first class host.

Repos

VST

VSTi

LADSPA

LV2

LV2 is a successor of both LADSPA (audio effects) and DSSI (instruments) with some backwards compatibility. The scope of the API more or less equals to the sum of LADSPA and DSSI, not in the last place thanks to its modular design.

DSSI

Formats

MP3

  • MP3 (MPEG-1 or MPEG-2 Audio Layer III) is a patented encoding format for digital audio which uses a form of lossy data compression. It is a common audio format for consumer audio streaming or storage, as well as a de facto standard of digital audio compression for the transfer and playback of music on most digital audio players.

Metadata

AAC

  • Advanced Audio Coding (AAC) is a standardized, lossy compression and encoding scheme for digital audio. Designed to be the successor of the MP3 format, AAC generally achieves better sound quality than MP3 at similar bit rates.

Ogg

Container format.

Vorbis

FLAC

  • FLAC stands for Free Lossless Audio Codec, an audio format similar to MP3, but lossless, meaning that audio is compressed in FLAC without any loss in quality. This is similar to how Zip works, except with FLAC you will get much better compression because it is designed specifically for audio, and you can play back compressed FLAC files in your favorite player (or your car or home stereo, see supported devices) just like you would an MP3 file. FLAC stands out as the fastest and most widely supported lossless audio codec, and the only one that at once is non-proprietary, is unencumbered by patents, has an open-source reference implementation, has a well documented format and API, and has several other independent implementations.

Opus

  • Opus is a totally open, royalty-free, highly versatile audio codec. Opus is unmatched for interactive speech and music transmission over the Internet, but is also intended for storage and streaming applications. It is standardized by the Internet Engineering Task Force (IETF) as RFC 6716 which incorporated technology from Skype's SILK codec and Xiph.Org's CELT codec.

AMR

Vinyl

CD

Playlists

Tools

SoX

play --show-progress -c 2 --null synth brownnoise reverb bass 6 treble -3 echos 0.8 0.9 1000 0.3 1800 0.25 [2]

play -n -c1 synth whitenoise band -n 100 20 band -n 50 20 gain +25  fade h 1 864000 1

play -c2 -n synth pinknoise band -n 280 80 band -n 60 25 gain +20 treble +40 500 bass -3 20 flanger 4 2 95 50 .3 sine 50 lin [3]

other

DJing

  • Internet DJ Console is a project started in March 2005 to provide a powerful yet easy to use source-client for individuals interested in streaming live radio shows over the Internet using Shoutcast or Icecast servers. Because of the large number of streaming applications that already existed but did little more than stream a pair of audio channels or a fixed playlist, it was decided that IDJC would be the opposite and simulate audio hardware to cut down the expense of creating a home studio.

Jamming

Binaural beats

Streaming

See also Music#Streaming

Fingerprinting

  • Echoprint is an open source music identification system that allows anyone to build music fingerprinting into their application. It is powered by The Echo Nest, in partnership with Musicbrainz.

Speech recognition

Speech synth

Logging

Visualisation

Metronome

Drums

See also Drumming

Looping

Sounds and samples

MIDI

OSC

OSC is a content format developed at CNMAT by Adrian Freed and Matt Wright comparable to XML, WDDX, or JSON. It was originally intended for sharing music performance data (gestures, parameters and note sequences) between musical instruments (especially electronic musical instruments such as synthesizers), computers, and other multimedia devices. OSC is often used as an alternative to the 1983 MIDI standard, where higher resolution and a richer musical parameter space is desired. OSC messages are commonly transported across the internet and within home and studio subnets using (UDP/IP, Ethernet). OSC messages between gestural controllers are usually transmitted over serial endpoints of USB by being wrapped in the SLIP protocol.

Hardware

see sound on sound, etc.

MP3

MIDI

Pedal

Synth

Microphones

Controllerism

Phreak

.

Sound system

Studio

Acoustics

  • The Effects of Large and Small Scale Turbulence on Sound Propagation in the Atmosphere

Sounds

few of my favourite

  • silver papers
  • bad tube track (in summer evening)
  • water (at night)
  • Flogsta scream
  • iceflow cracking
  • steel line against mast

Web

See also WebDev#Web_Audio_API

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