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1<?xml version='1.0' encoding="UTF-8"?> 1<?xml version='1.0' encoding="UTF-8"?>
2<!-- $Header: /var/cvsroot/gentoo/xml/htdocs/doc/en/alsa-guide.xml,v 1.55 2005/07/14 09:05:36 swift Exp $ --> 2<!-- $Header: /var/cvsroot/gentoo/xml/htdocs/doc/en/alsa-guide.xml,v 1.56 2005/07/14 09:11:02 neysx Exp $ -->
3 3
4<!DOCTYPE guide SYSTEM "/dtd/guide.dtd"> 4<!DOCTYPE guide SYSTEM "/dtd/guide.dtd">
5 5
6<guide link="/doc/en/alsa-guide.xml"> 6<guide link="/doc/en/alsa-guide.xml">
7<title>Gentoo Linux ALSA Guide</title> 7<title>Gentoo Linux ALSA Guide</title>
8 8
9<author title="Author"> 9<author title="Author">
10 <mail link="fox2mike@gentoo.org">Shyam Mani</mail> 10 <mail link="fox2mike@gentoo.org">Shyam Mani</mail>
11</author> 11</author>
12 12
13<abstract> 13<abstract>
14This document helps a user setup ALSA on Gentoo Linux. 14This document helps a user setup ALSA on Gentoo Linux.
15</abstract> 15</abstract>
16 16
17<!-- The content of this document is licensed under the CC-BY-SA license --> 17<!-- The content of this document is licensed under the CC-BY-SA license -->
18<!-- See http://creativecommons.org/licenses/by-sa/2.5 --> 18<!-- See http://creativecommons.org/licenses/by-sa/2.5 -->
19<license/> 19<license/>
20 20
21<version>2.4</version> 21<version>2.5</version>
22<date>2005-07-14</date> 22<date>2005-07-14</date>
23 23
24<chapter> 24<chapter>
25<title>Introduction</title> 25<title>Introduction</title>
26<section> 26<section>
27<title>What is ALSA?</title> 27<title>What is ALSA?</title>
28<body> 28<body>
29 29
30<p> 30<p>
31ALSA, which stands for <e>Advanced Linux Sound Architecture</e>, provides 31ALSA, which stands for <e>Advanced Linux Sound Architecture</e>, provides
32audio and MIDI (<e>Musical Instrument Digital Interface</e>) functionality to 32audio and MIDI (<e>Musical Instrument Digital Interface</e>) functionality to
33the Linux operating system. ALSA is the default sound subsystem in the 2.6 33the Linux operating system. ALSA is the default sound subsystem in the 2.6
34kernel thereby replacing OSS (<e>Open Sound System</e>), which was used in the 34kernel thereby replacing OSS (<e>Open Sound System</e>), which was used in the
352.4 kernels. 352.4 kernels.
36</p> 36</p>
447It will then adjust your volume settings to optimum levels, run 447It will then adjust your volume settings to optimum levels, run
448<c>modules-update</c> and start the <path>/etc/init.d/alsasound</path> service. 448<c>modules-update</c> and start the <path>/etc/init.d/alsasound</path> service.
449Once <c>alsaconf</c> exits, you can proceed with setting up the ALSA initscript. 449Once <c>alsaconf</c> exits, you can proceed with setting up the ALSA initscript.
450</p> 450</p>
451 451
452</body> 452</body>
453</section> 453</section>
454<section id="initscript"> 454<section id="initscript">
455<title>ALSA Initscript</title> 455<title>ALSA Initscript</title>
456<body> 456<body>
457 457
458<p> 458<p>
459We're now almost all setup. Whichever method you chose to install ALSA, you'll 459We're now almost all setup. Whichever method you chose to install ALSA, you'll
460need to have something load your modules or initialize ALSA and restore your 460need to have something load your modules or initialize ALSA and restore your
461volume settings when your system comes up. The ALSA Initscript handles all of 461volume settings when your system comes up. The ALSA Initscript handles all of
462this for you and is called <c>alsasound</c>. Add it to the boot run-level. 462this for you and is called <c>alsasound</c>. Add it to the boot runlevel.
463</p> 463</p>
464 464
465<pre caption="Adding ALSA to default"> 465<pre caption="Adding ALSA to the boot runlevel">
466# <i>rc-update add alsasound boot</i> 466# <i>rc-update add alsasound boot</i>
467 * alsasound added to runlevel boot 467 * alsasound added to runlevel boot
468 * rc-update complete. 468 * rc-update complete.
469</pre> 469</pre>
470 470
471<p> 471<p>
472Next, just check the <path>/etc/conf.d/alsasound</path> file and ensure that 472Next, just check the <path>/etc/conf.d/alsasound</path> file and ensure that
473SAVE_ON_STOP variable is set to yes. This saves your sound settings when you 473SAVE_ON_STOP variable is set to yes. This saves your sound settings when you
474shutdown your system. 474shutdown your system.
475</p> 475</p>
476 476
477</body> 477</body>
478</section> 478</section>
479<section> 479<section>
480<title>Audio Group</title> 480<title>Audio Group</title>

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