Debian Multimedia Project
Summary
Jack
JACK (Jack Audio Connection Kit) and ALSA related packages

This metapackage will install pro audio JACK (Jack Audio Connection Kit) and ALSA related packages.

Description

For a better overview of the project's availability as a Debian package, each head row has a color code according to this scheme:

If you discover a project which looks like a good candidate for Debian Multimedia to you, or if you have prepared an unofficial Debian package, please do not hesitate to send a description of that project to the Debian Multimedia mailing list

Links to other tasks

Debian Multimedia Jack packages

Official Debian packages with high relevance

A2jmidid
レガシーな ALSA MIDI を JACK MIDI システムから見えるようにするデーモン
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本プロジェクトの主目的はレガシーで JACK 化されていないアプリケーションを JACK MIDI 機能付きのシステムで簡単に使えるようにすることです。 a2jmidid は自動的ブリッジングを実装するデーモンです。全ての ALSA シーケンサ ポートを JACK MIDI ポートにすることができます。ALSA シーケンサポートが入出 力ポートの場合、入力用と出力用の二つの JACK MIDI ポートが得られます。

Aj-snapshot
make snapshots of JACK connections
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Aj-snapshot is a small program that can be used to make snapshots of the connections made between JACK and/or ALSA clients. Because JACK can provide both audio and MIDI support to programs, aj-snapshot can store both types of connections for JACK. ALSA, on the other hand, only provides routing facilities for MIDI clients. Aj-snapshot is meant to be used from the command line.

Alsa-tools
Console based ALSA utilities for specific hardware
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A collection of console-based utilities for specific sound hardware:

 as10k1 - An assembler for the EMU10K1 (EMU10K2) DSP chip
 hda-verb - send HD-audio commands to Intel HDA devices
 sbiload - OPL2/3 FM instrument loader for the ALSA sequencer
 us428control - Controller utility for Tascam US-X2Y
Alsa-tools-gui
GUI based ALSA utilities for specific hardware
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A collection of GUI based ALSA utilities for specific sound hardware:

 echomixer - control tool for Echoaudio soundcards
 envy24control - control tool for Envy24 (ice1712) based soundcards
 hdajackretask - retask jacks on HDA Intel hardware
 hdspconf - GUI program to control the Hammerfall HDSP Alsa Settings.
 hdspmixer - tool to control the advanced routing features of the
             RME Hammerfall DSP.
 rmedigicontrol - control tool for RME Digi32 and RME Digi96 soundcards
Screenshots of package alsa-tools-gui
Alsa-utils
ALSA の設定や利用のためのユーティリティ群
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含まれているツール:

  • alsactl: ALSA サウンドドライバ用高度なコントロール
  • alsaloop: PCM キャプチャと再生デバイス間のループバック作成
  • alsamixer: curses 版ミキサ
  • alsaucm: ALSA ユースケースマネージャ
  • amixer: コマンドライン版ミキサ
  • amidi: ALSA RawMIDI ポートとの間で読み書き
  • aplay, arecord: コマンドライン版再生・録音ツール
  • aplaymidi, arecordmidi: コマンドライン版 MIDI 再生・録音ツール
  • aconnect, aseqnet, aseqdump: コマンドライン版 MIDI シーケンサ制御ツール
  • iecset: IEC958 ステータスビットの設定とダンプ
  • speaker-test: スピーカーテストトーンジェネレータ

ALSA は Advanced Linux Sound Architecture の略称です。

Other screenshots of package alsa-utils
VersionURL
1.0.24.2-0ubuntu6https://screenshots.debian.net/screenshots/000/007/137/large.png
Screenshots of package alsa-utils
Faad
freeware Advanced Audio Decoder player
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FAAD2 is the fastest ISO AAC audio decoder available. FAAD2 correctly decodes all MPEG-4 and MPEG-2 MAIN, LOW, LTP, LD and ER object type AAC files.

This package contains a command line interface to play AAC or MP4 files.

Flac
Free Lossless Audio Codec - command line tools
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FLAC stands for Free Lossless Audio Codec. Grossly oversimplified, FLAC is similar to MP3, but lossless. The FLAC project consists of:

  • The stream format
  • libFLAC, which implements a reference encoder, stream decoder, and file decoder
  • flac, which is a command-line wrapper around libFLAC to encode and decode .flac files
  • Input plugins for various music players (Winamp, XMMS, and more in the works)

This package contains the command-line tools flac (used for encoding and decoding FLACs) and metaflac (used for manipulating FLAC metadata.)

Flake
Alternative encoder for the Free Lossless Audio Codec
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The purpose of Flake is to be an alternative to the FLAC reference encoder with the goal of increasing encoding speed and implementing experimental features.

Flake encodes WAV audio files into lossless FLAC files.

Gjacktransport
access to the JACK's transport mechanism as touchable slider
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G. JACK Transport is a standalone application that provides access to the Jack Audio Connection Kit's, JACK transport mechanism via a dynamic graphical slider.

In other words: this software allows to seek Audio/Video media files when they are played along jack transport. Intended for audio-engineers or A/V editors that work with Ardour, Ecasound, Hydrogen, Xjadeo, etc.

Additionally it provides G. JACK Clock, a "Big Clock" display for jack-transport.

Jaaa
audio signal generator and spectrum analyser
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Jaaa (JACK and ALSA Audio Analyser) is an audio signal generator and spectrum analyser designed to make accurate measurements.

Jaaa allows you select on of the four inputs, 'Min' and 'Max' the min and max displayed frequencies. There can be up to two markers which helps accurately read off values in the display.

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Jack-midi-clock
JACK client that sends MIDI beat clock pulses
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A simple and robust command-line tool to send MIDI beat clock that accurately follows JACK Transport.

It also features an instumentation tool to parse and dump incoming MCLK messages.

Jack-stdio
program to pipe audio-data from and to JACK
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jack-stdout is a small tool that writes JACK audio-sample data to buffered standard output. jack-stdin reads raw audio data from standard input and writes it to a JACK audio port.

By default jack-stdout writes 16 bit signed integer raw audio data (much like mpg123 -s at JACK's samplerate, but it can output signed/unsigned 8/16/24/32 bit integer and 32bit floating-point data, both big/little endian.

Jack-tools
various JACK tools: dl, record, scope, osc, plumbing, udp, play, transport
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jack-tools is a collection of small tools for the JACK Audio Connection Kit.

JACK allows the connection of multiple applications to an audio device, as well as allowing them to share audio between themselves.

jack-dl loads dsp algorithms from shared libraries. Commands are sent as OSC packets over a UDP connection.

jack-record is a light-weight JACK capture client to write an arbitrary number of channels to disk.

jack-scope draws either a time domain signal trace or a self correlation trace. Multiple input channels are superimposed, each channel is drawn in a different color. jack-scope accepts OSC packets for interactive control of drawing parameters.

jack-osc publishes the transport state of the local JACK server as OSC packets over a UDP connection. jack-osc allows any OSC enabled application to act as a JACK transport client, receiving sample accurate pulse stream timing data, and monitoring and initiating transport state change.

jack-plumbing maintains a set of port connection rules and manages these as clients register ports with JACK. Port names are implicitly bounded regular expressions and support sub-expression patterns.

jack-udp is a UDP audio transport mechanism for JACK. jack-udp is obsolete: use net driver instead.

jack-play is a light-weight JACK sound file player. It creates as many output ports as there are channels in the input file.

jack-transport is a JACK session manager. It reads configuration information from a system wide and a user specific configuration file and manages sessions involving the JACK daemon proper and optionally a set of secondary jack daemons.

Jackd
JACK Audio Connection Kit (default server package)
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JACK is a low-latency sound server, allowing multiple applications to connect to one audio device, and to share audio between themselves.

This dummy package depends on the current default JACK implementation.

Jackd1
JACK Audio Connection Kit (server and example clients)
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JACK is a low-latency sound server, allowing multiple applications to connect to one audio device, and to share audio between themselves.

This package contains the daemon jackd as well as some example clients.

Jackd2
JACK Audio Connection Kit (server and example clients)
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JACK is a low-latency sound server, allowing multiple applications to connect to one audio device, and to share audio between themselves.

This package contains the daemon jackd as well as some example clients.

Jackmeter
a basic command line meter for the JACK audio system
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Jack Meter is a command line audio meter for the JACK audio system. This allows the user to check signal levels on remote computers without the need for graphical systems.

Jacktrip
high-quality system for audio network performances
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JackTrip is a Linux and Mac OS X-based system used for multi-machine network performance over the Internet. It supports any number of channels (as many as the computer/network can handle) of bidirectional, high quality, uncompressed audio signal streaming.

You can use it between any combination of Linux and Mac OS X systems (i.e., one end using Linux can connect to the other using Mac OS X).

It is currently being developed and actively tested at CCRMA by the SoundWIRE group.

Jalv
tool to run LV2 plugins as stand-alone applications
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jalv is a stand-alone version of lv2jack that supports plugin UIs via libsuil. It allows one to run an LV2 plugin as a JACK application.

This package contains a replacement for the lv2jack utility, which was previously provided by the lilv-utils package.

Jmeters
multichannel audio level meter
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A jmeters is multichannel audio level meter for Jack Audio Connection Kit. It uses the same pixmaps as meterbridge. The main difference to meterbridge is that jmeters has the correct ballistics for both the VU and the PPM.

Jnoise
white and pink noise generator
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Jnoise is a small command line JACK app generating both white and pink noise. Both noise sources produce have a Gaussion amplitude distribution, and output a signal at -20dB RMS ref. a full scale sine wave.

Jnoisemeter
audio test signals meter
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A jnoisemeter is a small app designed to measure audio test signals and in particular noise signals.

The simplest use is to measure the S/N ratio of your sound card. If you can calibrate the input levels of your soundcard it can also be used (with some external hardware) to measure noise levels of any type of audio equipment, including preamps and microphones.

Kmetronome
ALSA MIDI Metronome
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KMetronome is a MIDI based metronome using the ALSA sequencer.

The intended audience are musicians and music students. Like the solid, real metronomes it is a tool to keep the rhythm while playing musical instruments.

It uses MIDI for sound generation instead of digital audio, allowing low CPU usage and very accurate timing thanks to the ALSA sequencer

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Libclalsadrv2
ALSA driver C++ access library
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C++ wrapper around the ALSA API.

This package includes the shared library object.

Linuxptp
Precision Time Protocol (PTP, IEEE1588) implementation for Linux
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Linuxptp is an implementation of the Precision Time Protocol (PTP) according to IEEE standard 1588 for Linux. Features include:

  • support for hardware and software time stamping via the Linux SO_TIMESTAMPING socket option.
  • support for the Linux PTP Hardware Clock (PHC) subsystem by using the clock_gettime family of calls, including the new clock_adjtimex system call
  • implementation of Boundary Clock (BC) and Ordinary Clock (OC)
  • transport over UDP/IPv4, UDP/IPv6, and raw Ethernet (Layer 2)
  • support for IEEE 802.1AS-2011 in the role of end station

PTP provides higher precision and faster synchronization than NTP even without hardware support. With hardware support, sub-microsecond accuracy can be expected. Whereas NTP is intended for WAN use, PTP is designed for LAN environments and makes use of UDP multicast.

Mudita24
ALSA GUI control tool for Envy24 (ice1712) soundcards
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Mudita24 is a modification of the Linux alsa-tools' envy24control: an application controlling the digital mixer, channel gains and other hardware settings for sound cards based on the VIA Ice1712 chipset aka Envy24. Unlike most ALSA mixer controls, this application displays a level meter for each input and output channel and maintains peak level indicators. This is based on Envy24's hardware peak metering feature.

Mudita24 provides alternate name to avoid confusion with "envy24control 0.6.0" until changes in this version propagate upstream. As balance to the "Envy", this project needed some Mudita "In Buddhism the third of the four divine abidings is mudita, taking joy in the good fortune of another. This virtue is considered the antidote to envy and the opposite of schadenfreude."

This utility is preferable to alsamixer for those with ice1712-based cards: M-Audio Delta 1010, Delta 1010LT, Delta DiO 2496, Delta 66, Delta 44, Delta 410 and Audiophile 2496. Terratec EWS 88MT, EWS 88D, EWX 24/96, DMX 6Fire, Phase 88. Hoontech Soundtrack DSP 24, Soundtrack DSP 24 Value, Soundtrack DSP 24 Media 7.1. Event Electronics EZ8. Digigram VX442. Lionstracs, Mediastaton. Terrasoniq TS 88. Roland/Edirol DA-2496.

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Patchage
modular patch bay for Jack audio and Alsa Midi
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Patchage provides a graphical interface to connect jack and midi inputs and outputs. Each application is represented as one box with inputs on the left and output on the right. Boxes can be moved around and arranged to have a clear display of the current setup.

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Projectm-data
Advanced Milkdrop-compatible music visualization library - data
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libprojectm is an iterative music visualization library which uses OpenGL for hardware acceleration. It is compatible with Milkdrop presets.

This package contains the presets which are distributed with projectM.

Projectm-jack
projectM JackAudio module
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projectM is an iterative music visualization library which uses OpenGL for hardware acceleration. It is compatible with Milkdrop presets.

This package contains an application to visualize JackAudio streams.

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Projectm-pulseaudio
projectM PulseAudio module
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projectM is an iterative music visualization library which uses OpenGL for hardware acceleration. It is compatible with Milkdrop presets.

This package contains an application to visualize PulseAudio streams.

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Qasconfig
ALSA configuration browser
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QasTools is a collection of desktop applications for the Linux sound system ALSA.

The applications included are:

  • QasConfig - browser for the ALSA configuration tree
  • QasHctl - mixer for ALSA's High level Control Interface
  • QasMixer - desktop mixer with features similar to alsamixer

ALSA's configuration resides in a tree structure which gets built from the contents of the files /etc/asound.conf and ~/.asoundrc. QasConfig is a simple browser for this configuration tree and can help to analyze and debug an ALSA setup.

Qashctl
mixer for ALSA's High level Control Interface
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QasTools is a collection of desktop applications for the Linux sound system ALSA.

The applications included are:

  • QasConfig - browser for the ALSA configuration tree
  • QasHctl - mixer for ALSA's High level Control Interface
  • QasMixer - desktop mixer with features similar to alsamixer

QasHctl is a mixer application for ALSA's "High level Control Interface". This interface allows more complex interaction than the "Simple Mixer Interface" which is used by alsamixer and QasMixer.

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Qasmixer
ALSA mixer for the desktop
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QasTools is a collection of desktop applications for the Linux sound system ALSA.

The applications included are:

  • QasConfig - browser for the ALSA configuration tree
  • QasHctl - mixer for ALSA's High level Control Interface
  • QasMixer - desktop mixer with features similar to alsamixer

QasMixer is a desktop mixer application for ALSA's "Simple Mixer Interface" and offers features similar to alsamixer. It also features a system tray icon with basic mixer functionality.

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Qjackctl
User interface for controlling the JACK sound server
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Qjackctl offers a user interface for controlling the JACK sound server daemon. At the same time it figures as a JACK patch bay and monitoring tool.

The package is enhanced by the following packages: qjackrcd
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VersionURL
0.3.6-1+b1https://screenshots.debian.net/screenshots/000/005/913/large.png
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Qjackrcd
Qt4 application to record JACK server outputs
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QJackRcd is a simple stereo recorder for Jack with few features as silence processing for automatic pause, file splitting, background file post-processing. It can be used with QJackCtl.

Features:

  • QT simple GUI with disk usage and vumeter.
  • Jack support for recording, jack transport support.
  • Silence compressing with auto pause and optional file splitting.
  • Background WAV post processing for format conversion and signal processing.
  • Automatic connection with first launched jack source facility.
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Qmidinet
MIDI Network Gateway via UDP/IP Multicast
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QmidiNet is a MIDI network gateway application that sends and receives MIDI data (ALSA Sequencer) over the network, using UDP/IP multicast. It was inspired by multimidicast (http://llg.cubic.org/tools) and designed to be compatible with ipMIDI for Windows (http://nerds.de).

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Rotter
JACK client for transmission recording and audio logging
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Rotter is a Recording of Transmission / Audio Logger for JACK. It was designed for use by radio stations, who are legally required to keep a recording of all their output. Rotter runs continuously, writing to a new file every hour.

Rtirq-init
startup script for realtime-preempt enabled kernels
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This package contains a script to prioritize IRQ thread handlers on a kernel patched with realtime-preempt patch from Ingo Molnar. The script takes advantage of the fact that realtime kernels use threads for IRQs management, and as such these threads (like any other thread running on your system) can be given maximum priority in an effort to minimize the latency of audio peripherals.

The script identifies the audio devices present on the machine and raises the priority of the threads that handle the IRQs of such devices.

Rtkit
Realtime Policy and Watchdog Daemon
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RealtimeKit is a D-Bus system service that changes the scheduling policy of user processes/threads to SCHED_RR (i.e. realtime scheduling mode) on request. It is intended to be used as a secure mechanism to allow real-time scheduling to be used by normal user processes.

Silentjack
silence detector for the JACK audio system
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SilentJack listens, using the JACK audio system, for silence. When silence is detected, it runs the command specified. Once the command has been run, a grace period is observed before resuming the silence detection.

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Sndio-tools
Small audio and MIDI framework from OpenBSD, basic tools
Maintainer: Peter Piwowarski
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Sndio is a small, simple audio and MIDI framework, developed by the OpenBSD project. It provides a lightweight audio and MIDI server and a well-documented userspace API to access the server or audio hardware in a uniform way. Sndio is designed to work well for both desktop and professional music applications, and supports features found in more complex sound systems such as per-application volume control, software mixing, and network transparency.

This package contains command-line tools useful in conjunction with a local or remote sndio server.

Sndiod
Small audio and MIDI framework from OpenBSD, sound server
Maintainer: Peter Piwowarski
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Sndio is a small, simple audio and MIDI framework, developed by the OpenBSD project. It provides a lightweight audio and MIDI server and a well-documented userspace API to access the server or audio hardware in a uniform way. Sndio is designed to work well for both desktop and professional music applications, and supports features found in more complex sound systems such as per-application volume control, software mixing, and network transparency.

This package contains the sndiod sound server.

Volti
control audio volume from system tray/notification area
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Volti is a lightweight GTK+ application for controlling audio volume from system tray/notification area.

Features:

  • no PulseAudio, GStreamer, Phonon etc. only ALSA is needed
  • internal mixer application, either choosing any mixer app is possible
  • left click opens volume scale (slider)
  • scroll wheel on tray icon changes volume, increment in percents is configurable
  • configurable middle click to toggle 'mute' or 'show mixer'
  • nice tooltip with card and volume info
  • support for multimedia keys
  • support desktop notifications on keys events
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Vorbis-tools
several Ogg Vorbis tools
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vorbis-tools contains oggenc (an encoder), ogg123 (a playback tool), ogginfo (displays ogg information), oggdec (decodes ogg files), vcut (ogg file splitter), and vorbiscomment (ogg comment editor).

ogg123 can play both Ogg Vorbis and FLAC audio streams.

Zita-ajbridge
alsa to jack bridge
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This package provides two applications, zita-a2j and zita-j2a. They allow one to use an ALSA device as a Jack client, to provide additional capture (a2j) or playback (j2a) channels.

Functionally these are equivalent to the alsa_in and alsa_out clients that come with Jack, but they provide much better audio quality. The resampling ratio will typically be stable within 1 PPM and change only very smoothly. Delay will be stable as well even under worse case conditions, e.g. the Jack client running near the end of the cycle.

Zita-alsa-pcmi-utils
Two simple demo programs zita-alsa-pcmi library
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Two simple demo programs are provided. alsa_delay a ALSA version of jack_delay. And alsa_loopback

Zita-bls1
binaural stereo signals converter
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zita-bls1 - The Blumlein Shuffler convert binaural stereo signals into a form suitable for reproduction using a convential stereo speaker pair.

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Zita-lrx
Command line jack application providing crossover filters
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Command line jack application providing 2, 3, or 4-band, 4th order crossover filters. The filter type is continuously variable between Linkwitz-Riley (-6dB at the xover frequency) and Butterworth(-3 dB at the xover frequency). Outputs are exactly phase matched in the crossover regions.

The application supports up to 16 channels.

Configuration is by a text file using 'OSC' style syntax (similar to Ambdec and Jconvolver). Apart from the basic filter parameters, the following can be set:

  • Channel labels (used for naming Jack ports).
  • Frequency band names (used in output port names).
  • Optional output autoconnections.
  • For each channel: gain and delay (in ms).
  • For each frequency band: gain and delay.
Zita-mu1
organise stereo monitoring for Jack Audio Connection Kit
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zita-mu1 is a simple Jack application used to organise stereo monitoring.

Main features:

  • Four stereo inputs.
  • K20 RMS/peak meters and stereo correlation meter.
  • Two monitoring outputs with individual volume controls.
  • Left / Right / Mono and Dim swithes.
  • Output of unmodified selected input, e.g. for metering.
  • Talkback level controls and buttons with automatic dimming of speakers.
Zita-njbridge
Jack clients to transmit multichannel audio over a local IP network
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Command line Jack clients to transmit full quality multichannel audio over a local IP network, with adaptive resampling.

Main features:

  • One-to-one (UDP) or one-to-many (multicast).
  • Sender and receiver(s) can each have their own sample rate and period size.
  • Up to 64 channels, 16 or 24 bit or float samples.
  • Receiver(s) can select any combination of channels.
  • Low latency, optional additional buffering.
  • High quality jitter-free resampling.
  • Graceful handling of xruns, skipped cycles, lost packets and freewheeling.
  • IP6 fully supported.
  • Requires zita-resampler, no other dependencies.

Official Debian packages with lower relevance

Bitmeter
diagnosis tool for JACK audio software
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JACK Bitmeter is a diagnosis tool for JACK audio software. As its name might suggest, the bitmeter operates at the bare metal of JACK's I/O layer, looking at the 32 binary digits in each individual sample.

Think of bitmeter like the cable detector in your toolbox. You cannot use a cable detector to drive screws into wood, or to undo bolts, or measure the length of a copper pipe, but it's the perfect tool for detecting hidden cables in walls before you drill. You will rarely need bitmeter, in fact most JACK users will never use it at all, but having it and never needing it is much better than needing it and not having it.

Pnmixer
Simple mixer application for system tray
Maintainer: Arnaud Rebillout
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PNMixer is a simple mixer application designed to run in your system tray. It integrates nicely into desktop environments that don't have a panel that supports applets and therefore can't run a mixer applet. In particular it's been used quite a lot with fbpanel and tint2, but should run fine in any system tray.

PNMixer is designed to work on systems that use ALSA for sound management. Any other sound driver like OSS or FFADO, or sound server like PulseAudio or Jack, are currently not supported (patches welcome).

Debian packages in contrib or non-free

Midisport-firmware
Firmware loader for M-Audio's MidiSport devices
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This package allows you to use M-Audio's USB MIDI and Audio interfaces with Linux. These devices require a firmware download before an operating system driver (e.g. ALSA's snd-usb-audio) can access them.

Supported devices:

  • MidiSport 1x1
  • MidiSport 2x2
  • MidiSport 4x4
  • MidiSport 8x8
  • KeyStation (old models: 49, 61)
  • Oxygen
  • Radium49
  • Radium61
  • Uno The loader is not required for the MidiSport 2x4 and for newer KeyStation models (49e, 61es, Pro 88).

No known packages available but some record of interest (WNPP bug)

Audio-science-hpi - wnpp
AudioScience device driver, firmware and utilities
Homepage not available
License: GPL
Debian package not available

This driver allows AudioScience cards to be controlled using the HPI API.

Carla - wnpp
audio plugin host supporting LADSPA, DSSI, LV2, VST2/3 & AU formats
License: GPL-2+
Debian package not available

Carla is an audio plugin host, with support for many audio drivers and plugin formats. It has some nice features like automation of parameters via MIDI CC (and send output back as MIDI too) and full OSC control.

Carla currently supports LADSPA (including LRDF), DSSI, LV2, VST2/3 and AU plugin formats, plus GIG, SF2 and SFZ file support. It uses JACK as the default and preferred audio driver but also supports native drivers like ALSA, DirectSound or CoreAudio.

Jack-oscrolloscope - wnpp
Simple waveform viewer for JACK
License: GPL
Debian package not available

The waveform is displayed in realtime, so you can always see the signal the instant it comes through JACK's input port.

Jack-smf-utils - wnpp
two utilities - jack-smf-player and jack-smf-recorder
License: GPL
Debian package not available

A set of two utilities whose purpose is to play and record MIDI streams from/to Standard MIDI Files (i.e. the files with .mid extension) using JACK MIDI.

Jackmix - wnpp
A matrix audio mixer for Jack using Qt
License: GPL
Debian package not available

JackMix is a matrix mixer allowing p input channels to be mixed into q output channles by a matrix of faders. It relys on the Jack framework to route these inputs and outputs.

This version of jackmix is enhanced for compatibility with an external MIDI control surface.

It is based on Arnold Krille's version 0.4.2

Ngjackpsa - wnpp
simple LADSPA hosts for the JACK Audio Connection Kit
License: GPL-2
Debian package not available

ng-jackspa is a set of simple user interfaces that host a LADSPA plugin, providing JACK ports for its audio inputs and outputs, and dynamic setting of its control inputs. Additionally, the plugin controls can be exported to or controlled by control voltages on standard JACK audio ports.

For a better description see the online documentation at http://home.gna.org/ngjackspa/.

Openlase - wnpp
-- Laser show software for soundcard operation
License: GPL-3+
Debian package not available

OpenLase is an open realtime laser show graphics toolkit. It can open, manipulate and save DXF, ILDA and WAVE. It pipes realtime laser show data through jack to the soundcard.

Pacmixer - wnpp
an alsamixer alike for PulseAudio
License: GPL
Debian package not available

pacmixer is an alsamixer alike for PulseAudio. It's a full-blown, terminal based mixers available for PA. It can be used to adjust channel and input/output volumes and settings for the PulseAudio sound server.

*Popularitycontest results: number of people who use this package regularly (number of people who upgraded this package recently) out of 203532