[[Concept:Audio]]

Airtime: Think of a radio station. Airtime is software that allows multiple people to run it over the internet. Airtime helps them manage the audio archive, upload files, create shows, manage staff, edit the programme calendar and cue playout. Designed specifically for independent media, it's free software.

Alogg: 'alogg' is a library which makes it easier to use Ogg/Vorbis streams with Allegro. It offers facilities to decode, stream, and encode Ogg/Vorbis streams, and integrates those facilities with Allegro's datafile and sample loading routines. 'alogg' comes with a sample player, streamer, and encoder based on Allegro's sound routines.

Amarok: Amarok is a cross-platform multimedia player that uses the Phonon sound server framework to play audio media and streams, and features a fresh and efficient approach to playlist handling. The emphasis is on the quick and easy user interface, allowing for fast access to the media library.

Ambisuite: 1. AMBCALC a Perl script that prints out channel values for a given azimuth and elevation. Should work on any platform with Perl installed, thusfar tested on Linux. 2. AMBINFO a Perl script that reads WAVEX header (same comment regarding platforms as ambcalc). 3. AMBMAN a Perl collection of utilities for manipulating, converting etc. ambisonic files. 4. WAV2AMB a Perl script that 'corrects' the headers on Wave Format Extensible files (same comment regarding platforms as ambcalc ).

Ampache: Ampache is a Web-based Audio file manager. It is implemented with MySQL, and PHP. It allows you to view, edit, and play your audio files via the web. It has support for playlists, artist and album views, album art, random play, playback via Http/On the Fly Transcoding and Downsampling, Vote based playback, Mpd and Icecast, Integrated Flash Player, as well as per user themes and song play tracking. You can also Link multiple Ampache servers togeather using XML-RPC. Ampache supports GETTEXT translations and has a full translation of many languages

AntennaPod: [Copied from https://f-droid.org/en/packages/de.danoeh.antennapod/ on 2020-08-08] AntennaPod is a podcast manager and player that gives you instant access to millions of free and paid podcasts, from independent podcasters to large publishing houses such as the BBC, NPR and CNN. Add, import and export their feeds hassle-free using the iTunes podcast database, OPML files or simple RSS URLs. Download, stream or queue episodes and enjoy them the way you like with adjustable playback speeds, chapter support and a sleep timer. Save effort, battery power and mobile data usage with powerful automation controls for downloading episodes (specify times, intervals and WiFi networks) and deleting episodes (based on your favourites and delay settings).

Aplakons: Aplakons allows you to build a sheets schema to organize activities to be followed by registered users. You can configure sets of sheets to customize each one’s activities to follow. You prepare a repository of sheets (as concrete activities), and after you order them in different arrays. The arrays can be assigned to users as activity plans. For example, a whole diet (array) based on cooking recipes (activities).

Aqualung: Aqualung is an advanced music player originally targeted at the GNU/Linux operating system, today also running on FreeBSD, OpenBSD and other platforms. It plays audio CDs, internet radio streams and podcasts as well as soundfiles in just about any audio format and has the feature of inserting no gaps between adjacent tracks. It also supports high quality sample rate conversion between the file and the output device, when necessary.

Ardour: Ardour is a professional multitrack/multichannel audio recorder and DAW for GNU/Linux, using ALSA-supported audio interfaces. It supports up to 32 bit samples, 24+ channels at up to 96kHz, full MMC control, a non-destructive, non-linear editor, and LADSPA plugins.

Aria Maestosa: Compose, edit, and play MIDI files. Has a graphical user interface with multiple instrument-specific views.

Arson: Arson is a KDE frontend to various CD burning and ripping tools. It was originally written to burn audio CDs, as there were no other frontends that used cdrdao (in disk at once mode), that could decode various encoded audio formats (mp3, ogg), and that displayed an accurate track length as the playlist was created. Arson was later expanded to include full progress display for all lengthy operations, audio CD burning, normalization of tracks before burning to even out volumes, data CD burning, CdIndex support (a free CDDB-like service), CD-to-CD copying (direct or with an intermediate file), and audio CD ripping/encoding (ripping tracks from a CD to files), and encoding to WAV, MP3, and Ogg Vorbis formats is supported. Data CD burning and [S]VCD image creation and burning are supported.

Audacious: Audacious is a free software audio player. A descendant of XMMS, Audacious plays your music how you want it, without stealing away your computer’s resources from other tasks. Drag and drop folders and individual song files, search for artists and albums in your entire music library, or create and edit your own custom playlists. Listen to CD’s or stream music from the Internet. Tweak the sound with the graphical equalizer or experiment with LADSPA effects. Enjoy the modern GTK-themed interface or change things up with Winamp Classic skins. Use the plugins included with Audacious to fetch lyrics for your music, to set an alarm in the morning, and more.

Audacity: Audacity is a cross-platform multitrack audio editor that lets you record sounds directly or import Ogg, WAV, AIFF, AU, IRCAM, or MP3 files. It features a few simple effects, all of the editing features you should need, and unlimited undo. The GUI is built with wxWidgets and the audio I/O currently uses PortAudio.

Audio Space: AudioSpace calculates the amount of storage required by an audio recording of a given duration, for different sampling rates, resolutions, and numbers of channels. The calculation may be made for uncompressed audio data or for several types of compression. A variety of units may be selected for reporting the result. The calculation may also be made in the opposite direction so as to determine how long a recording will fit into the available space.

Audio Utils

A collection of bash and perl scripts that help convert audio files.

aac2ogg - a quick and dirty AAC to OGG Vorbis converter.
wma2ogg - simple bash script that uses mplayer to convert ugly WMA files to OGG Vorbis.
reencode - a simple bash script that lets you re-encode MP3 files to higher/lower bitrates. Useful when the resulting MP3 file is going to be on a low-memory device (ie. "MP3" players).

Audio codec 2: 'Audio codec' is part of the LAME project, which is the source code for a fully GPL'd MP3 encoder. The project's goal is to improve the psychoacoustics, noise shaping and speed of MP3.

Audio-Convert: audio convert is a script that converts between WAV, Ogg, MP3, MPC, FLAC, APE, and WMA files. It has an easy-to-use interface that makes it possible to fill in the tags for a few formats and choose the quality of compression. The script was initially designed for the Nautilus file browser and can be easily installed into Nautilus by copying it to the nautilus-scripts directory. You can then right-click on files and choose "audio-convert" from the "scripts" menu. The script is also known to work on rox or directly from a shell.

AutoSub: From GitHub README: AutoSub is a CLI application to generate subtitle files (.srt, .vtt, and .txt transcript) for any video file using Mozilla DeepSpeech. I use the DeepSpeech Python API to run inference on audio segments and pyAudioAnalysis to split the initial audio on silent segments, producing multiple small files.

Autorun: 'autorun' automagically recognizes all available CDROMs in the system, mounts them upon insertion of a media and executes a possible autorun executable on the CD. The user can remove the media; autorun will call unmount after that.

Av-caster: From the project's README on 29 October 2021: AvCaster is built upon the JUCE framework, utilizing gStreamer as the media backend and libircclient as the chat backend. It is currently capable of recording to file or streaming to an RTMP server with screen capture (full-screen), webcam (full-screen or overlay), and audio (mono or stereo). It is moderately configurable, with preset configurations for streaming via popular servers such as livecoding.tv, and allows custom user-defined configurations to be stored as additional presets. This initial target is GNU/Linux, but it has been designed for portability and includes starter projects for AndroidStudio, CodeBlocks, VisualStudio, and xCode IDEs.

Bchunk: 'bchunk' converts CD images in the raw BIN/CUE format to a set of tracks in ISO 9660 format, which can be then written on a CD-R using cdrecord. Audio tracks are written in CDR (native CD audio) or WAV format.

Bestfit: Bestfit is a small program to determine which files that should be put on a CD (or other media), so that as little space as possible is wasted. It is very easy to use: you specify files on the command line, and bestfit prints the names of those that were selected. Alternatively, bestfit can execute a command for each selected file (eg. to move them to a different directory).

BezierComposer

Compose continuous voices using Bézier curves. If you want more control over your portamento, explore tuning and detuning or create flexible glissandi for your synths, this program is for you. Features:

Realtime output using JACK (CV/Gate) or Open Sound Control (frequency & gate)
Sync to other software using Jack Transport
Polyphonic: create multiple tracks
Flexible: Connect it to any synthesizer that supports CV/Gate, including most frameworks like SuperCollider, FAUST, ...

Biblos: 'Biblos' is a powerful indexing tool for managing a cd/mp3 collection as well as local directories. It records full information about each file on the specified media and has a powerful searching tool that can help you find specific files. You can also select a list of files/dirs from the database and Biblos will help you copy them from the source media to the directory choosen.

BigBlueButton

BigBlueButton supports real-time sharing of audio, video, slides (with whiteboard controls), chat, and the screen. Instructors can engage remote students with polling, emojis, multi-user whiteboard, and breakout rooms. Presenters can record and playback content for later sharing with others. We designed BigBlueButton for online learning (though it can be used for many other applications). The educational use cases for BigBlueButton are

Online tutoring (one-to-one)
Flipped classrooms (recording content ahead of your session)
Group collaboration (many-to-many)
Online classes (one-to-many)

BlueSpice: BlueSpice extends MediaWiki and enhances it with useful features, in particular in the areas of quality management, process support, administration, editing and security. There are two editions available: BlueSpice free and BlueSpice pro. BlueSpice free is a free of charge wiki version. BlueSpice pro is the business-critical solution with comprehensive functionalities and a subscription for support and software maintenance.

BoPHP: BoPHP is a Web interface for Boss Ogg. It plays Ogg Vorbis, MP3, and Flac files, and transparently uses SQLite as a database backend. Its artist/album/song scheme is particularly useful for large collections. It has a powerful import system based on filename and/or tags, and uses libao for output. The package currently supports OSS, Alsa, esd, arts, and others. Clients communicate via a powerful XML-RPC interface. Queue size is unlimited, and users can select what happens to the queue when it's empty or finished.

Bonfire

Bonfire is yet another application to burn discs for the gnome desktop. It is designed to be as simple as possible and has some unique features to enable users to create their discs easily and quickly. Features:

burn / copy / erase data and audio discs (big surprise)
allow full editing of data discs (remove/move/rename files inside a directory added to the selection) as well as audio discs
a customisable GUI (when used with GDL)
a search widget based on beagle
file change notification (requires kernel > 2.6.13)
Drag and Drop from nautilus and others apps
support any song format supported by gstreamer
a song and film previewer (thanks to Gstreamer) (to be extended later)
the ability to use files on a network as long as the protocol is handled by gnome-vfs
the display of all playlists and their contents (automatically detected through beagle)
devices detection thanks to HAL

Bongo: Bongo is a flexible and usable buffer-oriented media player for GNU Emacs.

Bookcase: Bookcase is a collection manager for KDE. It includes default collections for books, bibliographies, comic books, videos, music, coins, stamps, trading cards, and wines; it also allows custom collections and unlimited user-defined fields. The collection may be sorted by any property. Names are formatted automatically. Filters limit the visible entries by definable criteria. User can edit the default XSLT file for full customization for printing. Automatic ISBN validation is included. 'bookcase' can import CSV, Bibtex, and Bibtexml and export CSV, HTML, Bibtex, Bibtexml, and PilotDB.

Breeze: 'breeze' aims to be a fast and powerful CD Digital-Audio Player. It may run as either a console app or as a daemon. It can control a cdrom that is playing live, can change track to the next or previous one, jcan jump backward or forward, and set a playlist and your information about cdda.

Burn: ‘burn’ is a command-line tool to create audio discs from MP3, Ogg Vorbis, or WAV files, to backup data files, to create discs from ISO-9660 images, and to copy discs on-the-fly. It performs any of its functions in a single command, without requiring preparatory filesystem creation, etc. The program can compute if there is necessary free space for temporary files (images and audio files), warn if size is bigger than disc capacity, and manage multisession discs.

BurnCDDA: 'burnCDDA' is a console frontend to cdrdao, cdrecord, mpg123, oggdec, mppdec, normalize, and mp3_check. It can be used to create audio CDs from an M3U playlist (the playlist format of XMMS). It supports MP3, OGG Vorbis, Musepack, and WAV files, and it might be the easiest way to copy an audio CD.

Burncenter: This is a candidate for deletion: Unclear licensing, potentially non-free. Source code files do not mention GPL in their headers, just state "Copyright(c) 2000-2005 Alexandre Janon". A copy of the GPLv2 is included with the program. Majority of links on the project's website return 404. Drw (talk) 09:26, 18 July 2018 (EDT) 'burncenter' is a very easy-to-use text-based interface to the standard CD-burning tools for UNIX (cdrecord, cdda2wav, and mkisofs). It features an easy-to-use text interface, multi-session support, audio CD support, and CDRW support with fast and complete blanking.

CD-ROM Control: CD-Rom Control is a GUI for mounting, unmounting, and ejecting the CD-Rom drive. It includes an autostart feature which will automatically bring up either a CD listing in a graphical file manager, an HTML page in a browser, and DVD support.

CDfs: 'CDfs' is a file system that 'exports' all tracks and boot images on a CD as normal files. These files can then be mounted (e.g. for ISO and boot images), copied, played (audio tracks), etc. Its main goal is to 'unlock' information in old ISO sessions. The file system also lets you access data on faulty multi session disks, e.g. disks with multiple single sessions instead of a multi session.

CDimgtools: CDimg tools is a set of command line tools to manipulate CD/DVD images of certain formats.

CYTHAR: CYTHAR is multi-platform, pattern-oriented, polyphonic MIDI step-sequencer, which makes its own path. 16 parallel patterns with six tracks and 16 bars -- equating to 256 bars and 96 tracks. The six pattern tracks imitate the strings of a guitar and will be tuned e.g. to “EAdgbe”. For example, you can set a guitar chord to a pattern tune and then by enabling a few events or triggers the sequencer will start a solo or plays with the chords. You can program drum sets, melodies, arpeggios and complete songs.

Cadencii: Cadencii is a multi-track piano roll editor. A synthesis backend, such as vConnect-STAND or EFB-GW-PL is needed.

Cantus: 'Cantus' is a tool for tagging and renaming MP3 and OGG/Vorbis files. Its features include mass tagging and renaming of MP3s, the ability to generate a tag out of the filename, filter definitions for renaming, recursive actions, CDDB (Freedb) lookup (no CD needed), the ability to copy between ID3V1 and ID3V2 tags, and more.

Castle Game Engine: Castle Game Engine is a cross-platform 3D and 2D game engine for Object Pascal (FPC and Lazarus). - It supports many formats for game assets, including X3D, VRML, Collada, Spine JSON, MD3 and others. - Many graphic effects are possible, including bump mapping, shadows, shaders, mirrors, screen effects. - Animation, collision detection, 3D sound and more features are available. - An extensible system of 3D objects can be used, with out-of-the-box levels, items, intelligent creatures and more. - The engine is portable -- for desktop, mobile, web plugin. The engine is also used to develop view3dscene - a full-featured X3D / VRML browser and a viewer for many other 3D and 2D game formats.

Castopod: Decentralized podcast hosting software to run on your own server.

Ccd2cue: The program ccd2cue is a CCD sheet to CUE sheet converter for the GNU Operating System. It supports the full extent of CUE sheet format expressiveness, including mixed-mode discs and CD-Text meta-data. It plays an important role for those who need to use optical disc data which is only available in the proprietary sheet format CCD, but don’t want to surrender their freedom. It fills an important gap in the free software world because before its conception it was impossible to use complex forms of optical disc data laid out by CCD sheets in a whole/holy free operating system.

Cdcd: cdcd is a CLI CD player designed to incorporate all the features of the X and curses based CD players without having to use a clunky push button interface or having a console hogged with a curses-based CD player. cdcd can accept commands directly from the command line, or in a query mode similar to telnet or ftp. CDDBP and HTTP mode CDDB support is inlcuded, and now CD Index support as well. cdcd also supports CD-ROM changers on GNU/Linux 2.1 or 2.2 systems. You can run cdcd with a command as the argument (eg cdcd play), which is a great way to use cdcd and cron together to make a CD alarm clock. If you run cdcd without arguments you will be given the cdcd command prompt.

Cdda2wav

Cdda2wav is a program recording audio tracks digitally (CDDA) from compact disc drives or burners into wav files, making possible lossless copies of audio tracks. It is currently distributed as part of the 'cdrtools' package. Features include:

the ability to record tracks into separate files
the ability to save audio samples in a variety of formats and calculate MD-5 checksums for the sampled data
real-time scheduling (where available)
ability to undo pre-emphasis on-the-fly
can extract title information from CD Extra and CD-Text discs (with appropriate hardware)
can calculate CDDB disc id for title lookups in the internet

Cdparanoia: Cdparanoia is a Compact Disc Digital Audio (CDDA) extraction tool, commonly known as a 'ripper'. It is built on top of the Paranoia library (included in the cdparanoia source distribution). The cdparanoia package reads audio from the CDROM directly as data, with no analog step between, and writes the data to a file or pipe in WAV, AIFC or raw 16 bit linear PCM. 'cdparanoia' contains few-to-no 'extra' features; it concentrates on the ripping process and knowing as much as possible about the hardware performing it. Cdparanoia will read correct audio data from inexpensive drives prone to misalignment, frame jitter and loss of streaming during atomic reads, and can read and repair data from damaged CDs. It has no compile time configuration, and will autodetect the CDROM, its type, its interface and other aspects of the ripping process at runtime.

Cdrdao: 'cdrdao' creates audio or mixed mode CD-Rs in disk-at-once (DAO) mode driven by a description file. In DAO mode, users can create non standard track pre-gaps with lengths other than 2 seconds and contain nonzero audio data. This lets users divide live recordings into tracks where 2 second gaps would be irritating and create hidden tracks or track intros as found on commercial CDs.

Cdrom: Cdrom is a small/lightweight CD-ROM/DVD-ROM drive controlling utility. It supports several features like automatic mounting/unmounting (if needed), speed control, drive capability, CD status, and more. The author notes that cdrom was programmed under Linux 2.4, and has not been tested with newer kernel versions, including the 2.6 branch.

Cdrtools: !!!WARNING!!!! This download probably has serious licence issues. For saver options look at the details tab. cdrtools (formerly cdrecord) creates home-burned CDs with a CDR/CDRW recorder. It works as a burn engine for several applications. It supports CD recorders from many different vendors; all SCSI-3/mmc- and ATAPI/mmc-compliant drives should also work. Supported features include IDE/ATAPI, parallel port, and SCSI drives, audio CDs, data CDs, and mixed CDs, full multi-session support, CDRWs (rewritable), TAO, DAO, RAW, and human-readable error messages. cdrtools includes remote SCSI support and can access local or remote CD writers.

CherryMusic

CherryMusic is a music streaming server based on CherryPy and jPlayer. It plays the music inside your PC, smartphone, tablet, toaster or whatever device has a HTML5 compliant browser installed. Current features:

Stream your music inside the browser (locally or remote)
Browse and search your music
Completely AJAX based (no page reloads on click, therefore fast)
Create and share playlists
Multiple user authentication
HTTPS support
Automatic album cover art fetching
See CHANGES for all the features

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