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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 1.43 2004/11/21 12:35:06 neysx Exp $ --> 2<!-- $Header: /var/cvsroot/gentoo/xml/htdocs/doc/en/alsa-guide.xml,v 1.44 2004/12/02 13:02:18 swift Exp $ -->
3<!DOCTYPE guide SYSTEM "/dtd/guide.dtd"> 3<!DOCTYPE guide SYSTEM "/dtd/guide.dtd">
4 4
5<guide link="/doc/en/alsa-guide.xml"> 5<guide link="/doc/en/alsa-guide.xml">
6<title>Gentoo Linux ALSA Guide</title> 6<title>Gentoo Linux ALSA Guide</title>
7<author title="Author"> 7<author title="Author">
8 <mail link="zu@pandora.be">Vincent Verleye</mail> 8 <mail link="zu@pandora.be">Vincent Verleye</mail>
9</author> 9</author>
10<author title="Author"> 10<author title="Author">
11 <mail link="g2boojum@gentoo.org">Grant Goodyear</mail> 11 <mail link="g2boojum@gentoo.org">Grant Goodyear</mail>
12</author> 12</author>
13<author title="Author"> 13<author title="Author">
14 <mail link="agenkin@gentoo.org">Arcady Genkin</mail> 14 <mail link="agenkin@gentoo.org">Arcady Genkin</mail>
15</author> 15</author>
16<author title="Author"> 16<author title="Author">
17 <mail link="eradicator@gentoo.org">Jeremy Huddleston</mail> 17 <mail link="eradicator@gentoo.org">Jeremy Huddleston</mail>
28<author title="Editor"> 28<author title="Editor">
29 <mail link="blubber@gentoo.org">Tiemo Kieft</mail> 29 <mail link="blubber@gentoo.org">Tiemo Kieft</mail>
30</author> 30</author>
31<author title="Editor"> 31<author title="Editor">
32 <mail link="erwin@gentoo.org">Erwin</mail> 32 <mail link="erwin@gentoo.org">Erwin</mail>
33</author> 33</author>
34 34
35<abstract> 35<abstract>
36This guide will show you how to set up the Advanced Linux Sound Architecture 36This guide will show you how to set up the Advanced Linux Sound Architecture
37(ALSA) on Gentoo Linux. In addition to the Gentoo Linux Desktop Configuration 37(ALSA) on Gentoo Linux. In addition to the Gentoo Linux Desktop Configuration
38Guide, this guide is supposed to give you more information on this subject. 38Guide, this guide is supposed to give you more information on this subject.
39</abstract> 39</abstract>
40 40
41<license/> 41<license/>
42 42
43<version>1.5.5</version> 43<version>1.5.6</version>
44<date>2004-10-31</date> 44<date>2004-12-02</date>
45 45
46<chapter> 46<chapter>
47<title>The Advanced Linux Sound Architecture</title> 47<title>The Advanced Linux Sound Architecture</title>
48<section> 48<section>
49<title>What is ALSA?</title> 49<title>What is ALSA?</title>
50<body> 50<body>
51 51
52<p> 52<p>
53ALSA is the <e>Advanced Linux Sound Architecture</e>, a project dedicated to the 53ALSA is the <e>Advanced Linux Sound Architecture</e>, a project dedicated to the
54development of a high-quality Linux sound subsystem. It has replaced OSS 54development of a high-quality Linux sound subsystem. It has replaced OSS
55(<e>Open Sound System</e>) as default sound subsystem in the 2.6 kernel series. 55(<e>Open Sound System</e>) as default sound subsystem in the 2.6 kernel series.
56</p> 56</p>
57 57
58<p> 58<p>
59ALSA provides efficient support for all types of audio interfaces, is fully 59ALSA provides efficient support for all types of audio interfaces, is fully
263channels. If you receive an error, doublecheck that your soundcard module is 263channels. If you receive an error, doublecheck that your soundcard module is
264started. 264started.
265</p> 265</p>
266 266
267<p> 267<p>
268Now unmute the <e>Master</e> and <e>PCM</e> channels. If this isn't sufficient, 268Now unmute the <e>Master</e> and <e>PCM</e> channels. If this isn't sufficient,
269also unmute the <e>Center</e> and <e>Surround</e> channels. 269also unmute the <e>Center</e> and <e>Surround</e> channels.
270</p> 270</p>
271 271
272<pre caption="Unmuting the sound channels"> 272<pre caption="Unmuting the sound channels">
273# <i>amixer set Master 100 unmute</i> 273# <i>amixer set Master 100 unmute</i>
274# <i>amixer set PCM 100 unmute</i> 274# <i>amixer set PCM 100 unmute</i>
275<comment>(Only if the above isn't sufficient:)</comment> 275<comment>(Only if the above isn't sufficient:)</comment>
276# <i>amixer set Center 100 unmute</i> 276# <i>amixer set Center 100 unmute</i>
277# <i>amixer set Surround 100 unmute</i> 277# <i>amixer set Surround 100 unmute</i>
278# <i>amixer set Headphone 100 unmute</i>
278</pre> 279</pre>
279 280
280<p> 281<p>
281To check if your sound works, play a wave file (using <c>aplay</c>), mp3 (using 282To check if your sound works, play a wave file (using <c>aplay</c>), mp3 (using
282<c>mpg123</c> or even <c>mplayer</c>) or any other sound file for that matter. 283<c>mpg123</c> or even <c>mplayer</c>) or any other sound file for that matter.
283</p> 284</p>
284 285
285<p> 286<p>
286To fine-tune the sound channel settings you can use the <c>alsamixer</c> 287To fine-tune the sound channel settings you can use the <c>alsamixer</c>
287application. 288application.
288</p> 289</p>
289 290
290</body> 291</body>
291</section> 292</section>
292</chapter> 293</chapter>

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