Jack - Revision history

Andre Castro at 11:43, 4 April 2020

2020-04-04T11:43:27Z

← Older revision		Revision as of 13:43, 4 April 2020
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			https://jackaudio.org/assets/images/logo.png

	=Jack=		=Jack=
	~~Steps to getting jack to run~~		'''https://jackaudio.org/'''

	==Disable pulseaudio==		JACK (JACK Audio Connection Kit) refers to an API and two implementations of this API, jack1 and jack2. It provides a basic infrastructure for audio applications to communicate with each other and with audio hardware. Through JACK, users are enabled to build powerful systems for signal processing and music production.
	a less drastic measure
			<blockquote>
			Have you ever wanted to take the audio output of one piece of software and send it to another? How about taking the output of that same program and send it to two others, then record the result in the first program? Or maybe you’re a programmer who writes real-time audio and music applications and who is looking for a cross-platform API that enables not only device sharing but also inter-application audio routing, and is incredibly easy to learn and use? If so, JACK may be what you’ve been looking for.
			</blockquote>



			= getting jack to run =

			==Disable pulseaudio (less drastic measure)==
	http://jackaudio.org/pulseaudio_and_jack		http://jackaudio.org/pulseaudio_and_jack

	==Remove pulseaudio==		==Remove pulseaudio (drastic measure)==
			'''Note: This is not advice currently in GNU/Linux distro, as Firefox makes use to Pulse audio to output audio
			''' [[User:Andre Castro\|Andre Castro]] ([[User talk:Andre Castro\|talk]]) 13:43, 4 April 2020 (CEST)

	Pulseaudio, like Jack is a sound server, and the two don't co-exist very well, so we might want to remove it		Pulseaudio, like Jack is a sound server, and the two don't co-exist very well, so we might want to remove it

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	</pre>		</pre>
	Reboot		Reboot


	==Install required alsa tools==		==Install required alsa tools==
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	==Test Alsa==		==Test Alsa==
	~~mplayer~~ someaudiofile.mp3		Note: we are using mpv as media-player. Download it with
			* Debian/Ubuntu: <code>apt install mpv</code>
			* Mac: <code>brew install mpv</code>

			mpv someaudiofile.mp3
	While the file is playing, and specially if you aren't hearing any sound, open the alsamixer		While the file is playing, and specially if you aren't hearing any sound, open the alsamixer
	alsamixer		alsamixer
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	<span style="background:red">		<span style="background:red">
	if ~~mplayer~~ doesn't seem to be playing, then maybe it is because you - the user - are not in the audio group		if mpv doesn't seem to be playing, then maybe it is because you - the user - are not in the audio group
	sudo adduser yourname audio		sudo adduser yourname audio

	Reboot		Reboot
	and try again to play something through ~~mplayer~~		and try again to play something through mpv
	</span>		</span>

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	start jack (Play button) in qjackctl		start jack (Play button) in qjackctl

	if jack starts without problems, you can test jack by using ~~mplayer~~ with jack as audio output ( -ao jack )		if jack starts without problems, you can test jack by using mpv with jack as audio output ( -ao jack )
	~~mplayer~~ someaudiofile.mp3 -ao jack		mpv someaudiofile.mp3 -ao jack
	sound or no sound?		sound or no sound?

	----		----

Castrobot: /* Test Alsa */

2014-10-12T10:40:20Z

Test Alsa

← Older revision		Revision as of 12:40, 12 October 2014
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	<span style="background:red">		<span style="background:red">
	if mplayer doesn't seem to be playing, then maybe it is ~~becuase~~ you - the user - are not in the audio group		if mplayer doesn't seem to be playing, then maybe it is because you - the user - are not in the audio group
	sudo adduser yourname audio		sudo adduser yourname audio

Andre Castro: /* Test Alsa */

2014-02-25T19:34:02Z

Test Alsa

← Older revision		Revision as of 21:34, 25 February 2014
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	and check if the output volume (Master, PCM) is up and if the channels are not muted (MM on the bottom mutes. If sound select the channel and unmute w/ 'm' key)		and check if the output volume (Master, PCM) is up and if the channels are not muted (MM on the bottom mutes. If sound select the channel and unmute w/ 'm' key)
	http://www.matusiak.eu/media/uploads/linuxaudio_alsamixer_ok.png		http://www.matusiak.eu/media/uploads/linuxaudio_alsamixer_ok.png


	<span style="background:red">		<span style="background:red">
	if mplayer doesn't seem to be playing, then maybe it is becuase you - the user - are not in the audio group		if mplayer doesn't seem to be playing, then maybe it is becuase you - the user - are not in the audio group

Andre Castro at 19:33, 25 February 2014

2014-02-25T19:33:36Z

← Older revision		Revision as of 21:33, 25 February 2014
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	=Jack=		=Jack=
	Steps to getting jack to run		Steps to getting jack to run

			==Disable pulseaudio==
			a less drastic measure
			http://jackaudio.org/pulseaudio_and_jack

	==Remove pulseaudio==		==Remove pulseaudio==
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	and check if the output volume (Master, PCM) is up and if the channels are not muted (MM on the bottom mutes. If sound select the channel and unmute w/ 'm' key)		and check if the output volume (Master, PCM) is up and if the channels are not muted (MM on the bottom mutes. If sound select the channel and unmute w/ 'm' key)
	http://www.matusiak.eu/media/uploads/linuxaudio_alsamixer_ok.png		http://www.matusiak.eu/media/uploads/linuxaudio_alsamixer_ok.png
			<span style="background:red">
			if mplayer doesn't seem to be playing, then maybe it is becuase you - the user - are not in the audio group
			sudo adduser yourname audio

			Reboot
			and try again to play something through mplayer
			</span>

	==Start Jack==		==Start Jack==

Andre Castro at 15:16, 25 February 2014

2014-02-25T15:16:38Z

← Older revision		Revision as of 17:16, 25 February 2014
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	Reboot		Reboot

	===Install required alsa tools==		==Install required alsa tools==
	<pre>		<pre>
	sudo apt-get install alsa-base alsa-tools alsa-tools-gui alsa-utils alsa-oss alsamixergui libalsaplayer0		sudo apt-get install alsa-base alsa-tools alsa-tools-gui alsa-utils alsa-oss alsamixergui libalsaplayer0

Andre Castro at 15:06, 25 February 2014

2014-02-25T15:06:18Z

← Older revision		Revision as of 17:06, 25 February 2014
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	=Jack=		=Jack=
			Steps to getting jack to run

	==Remove pulseaudio==		==Remove pulseaudio==
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	rm -r ~/.pulse		rm -r ~/.pulse
	</pre>		</pre>
			Reboot

	~~Reboot, and install all the~~ required alsa tools		===Install required alsa tools==
	<pre>		<pre>
	sudo apt-get install alsa-base alsa-tools alsa-tools-gui alsa-utils alsa-oss alsamixergui libalsaplayer0		sudo apt-get install alsa-base alsa-tools alsa-tools-gui alsa-utils alsa-oss alsamixergui libalsaplayer0
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	While the file is playing, and specially if you aren't hearing any sound, open the alsamixer		While the file is playing, and specially if you aren't hearing any sound, open the alsamixer
	alsamixer		alsamixer
			and check if the output volume (Master, PCM) is up and if the channels are not muted (MM on the bottom mutes. If sound select the channel and unmute w/ 'm' key)
	http://www.matusiak.eu/media/uploads/linuxaudio_alsamixer_ok.png		http://www.matusiak.eu/media/uploads/linuxaudio_alsamixer_ok.png
	~~check if~~ the ~~output volume~~ (~~Master, PCM~~) ~~is up and~~ if ~~the channels are not muted~~ (~~MM in the bottom~~. If sound ~~select the channel and unmute w/ 'm' key)~~

			==Start Jack==
			the easy way is to use qjackctrl to start and manage jack connections
			qjackctrl
			start jack (Play button) in qjackctl

			if jack starts without problems, you can test jack by using mplayer with jack as audio output ( -ao jack )
			mplayer someaudiofile.mp3 -ao jack
			sound or no sound?

			----

Andre Castro: Created page with "=Jack= ==Remove pulseaudio== Pulseaudio, like Jack is a sound server, and the two don't co-exist very well, so we might want to remove it from: http://crunchbang.org/forums..."

2014-02-25T14:25:29Z

Created page with "=Jack= ==Remove pulseaudio== Pulseaudio, like Jack is a sound server, and the two don't co-exist very well, so we might want to remove it from: http://crunchbang.org/forums..."

New page

=Jack=

==Remove pulseaudio==
Pulseaudio, like Jack is a sound server, and the two don't co-exist very well, so we might want to remove it

from: http://crunchbang.org/forums/viewtopic.php?id=23930
<pre>
sudo killall pulseaudio
sudo apt-get purge pulseaudio pulseaudio-utils gstreamer0.10-pulseaudio libpulse-browse0 paman pavumeter pavucontrol
sudo mv /etc/asound.conf /etc/asound.conf-bak
rm ~/.pulse-cookie
rm -r ~/.pulse
</pre>

Reboot, and install all the required alsa tools
<pre>
sudo apt-get install alsa-base alsa-tools alsa-tools-gui alsa-utils alsa-oss alsamixergui libalsaplayer0
</pre>

==Test Alsa==
mplayer someaudiofile.mp3
While the file is playing, and specially if you aren't hearing any sound, open the alsamixer
alsamixer
http://www.matusiak.eu/media/uploads/linuxaudio_alsamixer_ok.png
check if the output volume (Master, PCM) is up and if the channels are not muted (MM in the bottom. If sound select the channel and unmute w/ 'm' key)