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JACK Audio Connection Kit

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2.6 series, whose initial latency performance had been disappointing compared to the older 2.4 series. Real-time tuning work culminated in numerous scheduling improvements to the mainline kernel and the creation of an -rt branch for more intrusive optimizations in the release 2.6.24, and later the
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as a complete drop-in replacement provider for JACK clients, mapping JACK API calls to equivalent PipeWire calls. If used as a replacement for ALSA and PulseAudio as well, it can unify the different sound servers and APIs that might be typically found on a machine, and allow better integration
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The JACK API is standardized by consensus, and two compatible implementations exist: jack1, which is implemented in plain C and has been in maintenance mode for a while, and jack2 (originally jackdmp), a re-implementation in C++ originally led by Stéphane Letz, which introduced multi-processor
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between different software. PipeWire also claims to add a number of features and fix a number of limitations compared to JACK. The use of PipeWire as the default implementation of JACK is the default on
378:, JACK daemon is an "audio daemon", i.e. it does mixing of audio from applications via software. For this it assumes to have exclusive access to the kernel's audio sub-system. 314:. Additionally, a dummy driver (useful if no sound output is desired, e.g. for offline rendering) and an Audio-over-UDP driver exist. One or both implementations can run on 804: 779: 408: 456: 427: 605: 789: 275: 247: 205: 258:
connections for both audio and MIDI data between applications. JACK was developed by a community of open-source developers led by
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requirements of JACK to achieve sufficiently low latencies were one of the driving forces behind the
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for professional audio software on Linux since its inception in 2002. The server is
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scalability and support for operating systems other than Linux.
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Professional sound server daemon for Unix-like operating systems
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Index


Original author(s)
Paul Davis
Developer(s)
Stable release
Repository
github.com/jackaudio/jack2
C
C++
Operating system
BSD
Linux
macOS
Solaris
Windows
iOS
Type
Sound server
License
GPL-2.0-or-later
LGPL-2.1-or-later
jackaudio.org
Edit this at Wikidata
recursive acronym
sound server
API
daemon
low-latency
Paul Davis
de facto standard

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