source: multimedia/libdriv/alsa-utils.xml@ 04be25f

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Last change on this file since 04be25f was 04be25f, checked in by Bruce Dubbs <bdubbs@…>, 18 years ago

Touchup to alsa-utils explanation

git-svn-id: svn://svn.linuxfromscratch.org/BLFS/trunk/BOOK@6014 af4574ff-66df-0310-9fd7-8a98e5e911e0
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1<?xml version="1.0" encoding="ISO-8859-1"?>
2<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN"
3 "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd" [
4 <!ENTITY % general-entities SYSTEM "../../general.ent">
5 %general-entities;
6
7 <!ENTITY alsa-utils-download-http "&alsa-download-http;/utils/alsa-utils-&alsa-utils-version;.tar.bz2">
8 <!ENTITY alsa-utils-download-ftp "&alsa-download-ftp;/utils/alsa-utils-&alsa-utils-version;.tar.bz2">
9 <!ENTITY alsa-utils-md5sum "ba9b8010120701d0f6daf061d392cfa2">
10 <!ENTITY alsa-utils-size "972 KB">
11 <!ENTITY alsa-utils-buildsize "6.8 MB">
12 <!ENTITY alsa-utils-time "0.1 SBU">
13]>
14
15<sect1 id="alsa-utils" xreflabel="ALSA Utilities-&alsa-utils-version;">
16 <?dbhtml filename="alsa-utils.html"?>
17
18 <sect1info>
19 <othername>$LastChangedBy$</othername>
20 <date>$Date$</date>
21 <keywordset>
22 <keyword role="package">alsa-utils-&alsa-utils-version;.tar</keyword>
23 <keyword role="ftpdir">alsa-utils</keyword>
24 </keywordset>
25 </sect1info>
26
27 <title>ALSA Utilities-&alsa-utils-version;</title>
28
29 <indexterm zone="alsa-utils">
30 <primary sortas="a-ALSA-Utilities">ALSA Utilities</primary>
31 </indexterm>
32
33 <sect2 role="package">
34 <title>Introduction to ALSA Utilities</title>
35
36 <para>The <application>ALSA Utilities</application> package contains
37 various utilities which are useful for controlling your sound card.</para>
38
39 <bridgehead renderas="sect3">Package Information</bridgehead>
40 <itemizedlist spacing="compact">
41 <listitem>
42 <para>Download (HTTP): <ulink url="&alsa-utils-download-http;"/></para>
43 </listitem>
44 <listitem>
45 <para>Download (FTP): <ulink url="&alsa-utils-download-ftp;"/></para>
46 </listitem>
47 <listitem>
48 <para>Download MD5 sum: &alsa-utils-md5sum;</para>
49 </listitem>
50 <listitem>
51 <para>Download size: &alsa-utils-size;</para>
52 </listitem>
53 <listitem>
54 <para>Estimated disk space required: &alsa-utils-buildsize;</para>
55 </listitem>
56 <listitem>
57 <para>Estimated build time: &alsa-utils-time;</para>
58 </listitem>
59 </itemizedlist>
60
61 <bridgehead renderas="sect3">ALSA Utilities Dependencies</bridgehead>
62
63 <bridgehead renderas="sect4">Required</bridgehead>
64 <para role="required"><xref linkend="alsa-lib"/></para>
65
66 <para condition="html" role="usernotes">User Notes:
67 <ulink url="&blfs-wiki;/alsa-utils"/></para>
68
69 </sect2>
70
71 <sect2 role="installation">
72 <title>Installation of ALSA Utilities</title>
73
74 <para>Install <application>ALSA Utilities</application> by
75 running the following commands:</para>
76
77<screen><userinput>./configure &amp;&amp;
78make</userinput></screen>
79
80 <para>This package does not come with a test suite.</para>
81
82 <para>Now, as the <systemitem class="username">root</systemitem> user:</para>
83
84<screen role="root"><userinput>make install</userinput></screen>
85
86 </sect2>
87
88 <sect2 role="configuration">
89 <title>Configuring ALSA Utilities</title>
90
91 <sect3 id="alsa-utils-config">
92 <title>Config Files</title>
93
94 <para><filename>/etc/asound.state</filename></para>
95
96 <indexterm zone="alsa-utils alsa-utils-config">
97 <primary sortas="e-etc-asound.state">/etc/asound.state</primary>
98 </indexterm>
99
100 </sect3>
101
102 <sect3 id="alsa-utils-init">
103 <title>Configuration Information</title>
104
105 <para> Use a bootscript to store the values at shutdown.</para>
106
107 <indexterm zone="alsa-utils alsa-utils-init">
108 <primary sortas="f-alsa">alsa</primary>
109 </indexterm>
110
111 <para>As the <systemitem class="username">root</systemitem> user,
112 install the init script <filename>/etc/rc.d/init.d/alsa</filename> included
113 in the <xref linkend="bootscripts"/> package.</para>
114
115<screen role="root"><userinput>make install-alsa</userinput></screen>
116
117 <para>Note that all channels of your sound card are muted by default.
118 You can use the <command>alsamixer</command> program from the
119 <application>ALSA Utilities</application> to change this.</para>
120
121 <para>The first time the <filename>alsactl</filename> program is run from
122 the <application>udev</application> rule below, it will complain that
123 there is no state in <filename>/etc/asound.state</filename>. You can
124 prevent this by running the following commands as the <systemitem
125 class="username">root</systemitem> user:</para>
126
127<screen role="root"><userinput>touch /etc/asound.state &amp;&amp;
128alsactl store</userinput></screen>
129
130 <para>The volume settings will be restored from the saved state by
131 <application>Udev</application> when the device is detected (during boot
132 or when plugged in for USB devices).</para>
133
134<!--
135 <para> While still the
136 <systemitem class="username">root</systemitem> user, create the
137 <filename>/etc/udev/scripts/alsa-restore</filename> script with
138 the following commands:</para>
139
140<screen role="root"><userinput>install -v -d -m754 /etc/udev/scripts &amp;&amp;
141cat &gt; /etc/udev/scripts/alsa-restore &lt;&lt; "EOF"
142#!/bin/sh -e
143# Begin /etc/udev/scripts/alsa-restore
144# $1 is (the numbered device "%n") passed in by udev/kernel.
145
146 rc=1
147
148 if [ -f /usr/sbin/alsactl ]; then
149 /usr/sbin/alsactl restore "${1}"
150 rc=$?
151 fi
152
153 exit $rc
154
155# End /etc/udev/scripts/alsa-restore
156EOF
157chmod -v 754 /etc/udev/scripts/alsa-restore</userinput></screen>
158-->
159
160 <para>As the <systemitem class="username">root</systemitem> user, install
161 a new <application>Udev</application> rules file to create the audio
162 device nodes and run the restore script:</para>
163
164<screen role="root"><userinput>cat &gt; /etc/udev/rules.d/15-alsa.rules &lt;&lt; "EOF"
165# Give the audio group ownership of sound devices
166SUBSYSTEM=="sound", GROUP="audio"
167SUBSYSTEM=="snd", GROUP="audio"
168
169# ALSA Devices
170# When a sound device is detected, restore the volume settings
171KERNEL=="controlC[0-9]*", ACTION=="add", RUN+="/usr/sbin/alsactl restore %n"
172KERNEL="hw[CD0-9]*", NAME="snd/%k"
173KERNEL="pcm[CD0-9cp]*", NAME="snd/%k"
174KERNEL="midiC[D0-9]*", NAME="snd/%k"
175KERNEL="timer", NAME="snd/%k"
176KERNEL="seq", NAME="snd/%k"
177EOF
178chmod 644 /etc/udev/rules.d/15-alsa.rules</userinput></screen>
179
180 </sect3>
181
182 </sect2>
183
184 <sect2 role="content">
185 <title>Contents</title>
186
187 <segmentedlist>
188 <segtitle>Installed Programs</segtitle>
189 <segtitle>Installed Libraries</segtitle>
190 <segtitle>Installed Directories</segtitle>
191
192 <seglistitem>
193 <seg>aconnect, alsaconf, alsactl, alsamixer, amidi,
194 amixer, aplay, aplaymidi, arecord, arecordmidi, aseqnet,
195 aseqdump, iecset, and speaker-test</seg>
196 <seg>None</seg>
197 <seg>None</seg>
198 </seglistitem>
199 </segmentedlist>
200
201 <variablelist>
202 <bridgehead renderas="sect3">Short Descriptions</bridgehead>
203 <?dbfo list-presentation="list"?>
204 <?dbhtml list-presentation="table"?>
205
206 <varlistentry id="aconnect">
207 <term><command>aconnect</command></term>
208 <listitem>
209 <para>is a utility for connecting and disconnecting two existing
210 ports in the ALSA sequencer system.</para>
211 <indexterm zone="alsa-utils aconnect">
212 <primary sortas="b-aconnect">aconnect</primary>
213 </indexterm>
214 </listitem>
215 </varlistentry>
216
217 <varlistentry id="alsaconf">
218 <term><command>alsaconf</command></term>
219 <listitem>
220 <para>is a configuration tool which tries to detect the sound cards
221 on your system and write a suitable configuration file for ALSA.
222 This program is incompatible with udev and hotplug.</para>
223 <indexterm zone="alsa-utils alsaconf">
224 <primary sortas="b-alsaconf">alsaconf</primary>
225 </indexterm>
226 </listitem>
227 </varlistentry>
228
229 <varlistentry id="alsactl">
230 <term><command>alsactl</command></term>
231 <listitem>
232 <para>is used to control advanced settings for the
233 ALSA sound card drivers.</para>
234 <indexterm zone="alsa-utils alsactl">
235 <primary sortas="b-alsactl">alsactl</primary>
236 </indexterm>
237 </listitem>
238 </varlistentry>
239
240 <varlistentry id="alsamixer">
241 <term><command>alsamixer</command></term>
242 <listitem>
243 <para>is an ncurses-based mixer program for use with the
244 ALSA sound card drivers.</para>
245 <indexterm zone="alsa-utils alsamixer">
246 <primary sortas="b-alsamixer">alsamixer</primary>
247 </indexterm>
248 </listitem>
249 </varlistentry>
250
251 <varlistentry id="amidi">
252 <term><command>amidi</command></term>
253 <listitem>
254 <para>is used to read from and write to ALSA
255 RawMIDI ports.</para>
256 <indexterm zone="alsa-utils amidi">
257 <primary sortas="b-amidi">amidi</primary>
258 </indexterm>
259 </listitem>
260 </varlistentry>
261
262 <varlistentry id="amixer">
263 <term><command>amixer</command></term>
264 <listitem>
265 <para> allows command-line control of the mixers for the
266 ALSA sound card drivers.</para>
267 <indexterm zone="alsa-utils amixer">
268 <primary sortas="b-amixer">amixer</primary>
269 </indexterm>
270 </listitem>
271 </varlistentry>
272
273 <varlistentry id="aplay">
274 <term><command>aplay</command></term>
275 <listitem>
276 <para>is a command-line soundfile player for the
277 ALSA sound card drivers.</para>
278 <indexterm zone="alsa-utils aplay">
279 <primary sortas="b-aplay">aplay</primary>
280 </indexterm>
281 </listitem>
282 </varlistentry>
283
284 <varlistentry id="aplaymidi">
285 <term><command>aplaymidi</command></term>
286 <listitem>
287 <para>is a command-line utility that plays the specified
288 MIDI file(s) to one or more ALSA sequencer ports.</para>
289 <indexterm zone="alsa-utils aplaymidi">
290 <primary sortas="b-aplaymidi">aplaymidi</primary>
291 </indexterm>
292 </listitem>
293 </varlistentry>
294
295 <varlistentry id="arecord">
296 <term><command>arecord</command></term>
297 <listitem>
298 <para>is a command-line soundfile recorder for the
299 ALSA sound card drivers.</para>
300 <indexterm zone="alsa-utils arecord">
301 <primary sortas="b-arecord">arecord</primary>
302 </indexterm>
303 </listitem>
304 </varlistentry>
305
306 <varlistentry id="arecordmidi">
307 <term><command>arecordmidi</command></term>
308 <listitem>
309 <para>is a command-line utility that records a standard
310 MIDI file from one or more ALSA sequencer ports.</para>
311 <indexterm zone="alsa-utils arecordmidi">
312 <primary sortas="b-arecordmidi">arecordmidi</primary>
313 </indexterm>
314 </listitem>
315 </varlistentry>
316
317 <varlistentry id="aseqdump">
318 <term><command>aseqdump</command></term>
319 <listitem>
320 <para>is a command-line utility that prints the sequencer events it
321 receives as text.</para>
322 <indexterm zone="alsa-utils aseqdump">
323 <primary sortas="b-aseqdump">aseqdump</primary>
324 </indexterm>
325 </listitem>
326 </varlistentry>
327
328 <varlistentry id="aseqnet">
329 <term><command>aseqnet</command></term>
330 <listitem>
331 <para>is an ALSA sequencer client which sends
332 and receives event packets over a network.</para>
333 <indexterm zone="alsa-utils aseqnet">
334 <primary sortas="b-aseqnet">aseqnet</primary>
335 </indexterm>
336 </listitem>
337 </varlistentry>
338
339 <varlistentry id="iecset">
340 <term><command>iecset</command></term>
341 <listitem>
342 <para>is a small utility to set or dump the IEC958 (or so-called
343 <quote>S/PDIF</quote>) status bits of the specified sound
344 card via the ALSA control API.</para>
345 <indexterm zone="alsa-utils iecset">
346 <primary sortas="b-iecset">iecset</primary>
347 </indexterm>
348 </listitem>
349 </varlistentry>
350
351 <varlistentry id="speaker-test">
352 <term><command>speaker-test</command></term>
353 <listitem>
354 <para>is a command-line speaker test tone generator for ALSA.</para>
355 <indexterm zone="alsa-utils speaker-test">
356 <primary sortas="b-speaker-test">speaker-test</primary>
357 </indexterm>
358 </listitem>
359 </varlistentry>
360
361 </variablelist>
362
363 </sect2>
364
365</sect1>
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