source: multimedia/libdriv/alsa-utils.xml@ 56229a7e

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1<?xml version="1.0" encoding="ISO-8859-1"?>
2<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
3 "http://www.oasis-open.org/docbook/xml/4.5/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 "c4628bae7632937eac2de4cf2a3de82e">
10 <!ENTITY alsa-utils-size "1.2 MB">
11 <!ENTITY alsa-utils-buildsize "15 MB">
12 <!ENTITY alsa-utils-time "0.1 SBU">
13]>
14
15<sect1 id="alsa-utils" xreflabel="alsa-utils-&alsa-utils-version;">
16 <?dbhtml filename="alsa-utils.html"?>
17
18 <sect1info>
19 <othername>$LastChangedBy$</othername>
20 <date>$Date$</date>
21 </sect1info>
22
23 <title>alsa-utils-&alsa-utils-version;</title>
24
25 <indexterm zone="alsa-utils">
26 <primary sortas="a-alsa-utils">alsa-utils</primary>
27 </indexterm>
28
29 <sect2 role="package">
30 <title>Introduction to ALSA Utilities</title>
31
32 <para>
33 The <application>ALSA Utilities</application> package contains
34 various utilities which are useful for controlling your sound
35 card.
36 </para>
37
38 &lfs91_checked;
39
40 <bridgehead renderas="sect3">Package Information</bridgehead>
41 <itemizedlist spacing="compact">
42 <listitem>
43 <para>
44 Download (HTTP): <ulink url="&alsa-utils-download-http;"/>
45 </para>
46 </listitem>
47 <listitem>
48 <para>
49 Download (FTP): <ulink url="&alsa-utils-download-ftp;"/>
50 </para>
51 </listitem>
52 <listitem>
53 <para>
54 Download MD5 sum: &alsa-utils-md5sum;
55 </para>
56 </listitem>
57 <listitem>
58 <para>
59 Download size: &alsa-utils-size;
60 </para>
61 </listitem>
62 <listitem>
63 <para>
64 Estimated disk space required: &alsa-utils-buildsize;
65 </para>
66 </listitem>
67 <listitem>
68 <para>
69 Estimated build time: &alsa-utils-time;
70 </para>
71 </listitem>
72 </itemizedlist>
73
74 <bridgehead renderas="sect3">ALSA Utilities Dependencies</bridgehead>
75
76 <bridgehead renderas="sect4">Required</bridgehead>
77 <para role="required">
78 <xref linkend="alsa-lib"/>
79 </para>
80
81 <bridgehead renderas="sect4">Optional</bridgehead>
82 <para role="optional">
83 <xref linkend="fftw"/>,
84 <xref linkend="libsamplerate"/>,
85 <xref linkend="xmlto"/>, and
86 <ulink url="http://hightek.org/dialog/">Dialog</ulink>
87 </para>
88
89 <para condition="html" role="usernotes">User Notes:
90 <ulink url="&blfs-wiki;/alsa-utils"/>
91 </para>
92 </sect2>
93
94 <sect2 role="installation">
95 <title>Installation of ALSA Utilities</title>
96
97 <para>
98 Install <application>ALSA Utilities</application> by
99 running the following commands:
100 </para>
101
102<screen><userinput>./configure --disable-alsaconf \
103 --disable-bat \
104 --disable-xmlto \
105 --with-curses=ncursesw &amp;&amp;
106make</userinput></screen>
107
108 <para>
109 This package does not come with a test suite.
110 </para>
111
112 <para>
113 Now, as the <systemitem class="username">root</systemitem> user:
114 </para>
115
116<screen role="root"><userinput>make install</userinput></screen>
117
118 </sect2>
119
120 <sect2 role="commands">
121 <title>Command Explanations</title>
122
123 <para>
124 <parameter>--disable-alsaconf</parameter>: This switch disables building
125 the <command>alsaconf</command> configuration tool which is incompatible
126 with <application>Udev</application>.
127 </para>
128
129 <para>
130 <parameter>--disable-xmlto</parameter>: Omit this switch if you have
131 installed <xref linkend="xmlto"/> and wish to regenerate the man pages.
132 </para>
133
134 <para>
135 <parameter>--disable-bat</parameter>: Omit this switch if you have
136 installed <xref linkend="fftw"/> and wish to
137 install the Basic Audio Tester (BAT).
138 </para>
139
140 <para>
141 <parameter>--with-curses=ncursesw</parameter>: This switch forces the
142 use of wide-character ncurses libraries.
143 </para>
144
145 </sect2>
146
147 <sect2 role="configuration">
148 <title>Configuring ALSA Utilities</title>
149
150 <sect3 id="alsa-utils-config">
151 <title>Config Files</title>
152
153 <para>
154 <filename>/var/lib/alsa/asound.state</filename>
155 </para>
156
157 <indexterm zone="alsa-utils alsa-utils-config">
158 <primary sortas="e-var-lib-alsa-asound.state">/var/lib/alsa/asound.state</primary>
159 </indexterm>
160
161 </sect3>
162
163 <sect3>
164 <title>Configuration Information</title>
165
166 <para>
167 Note that all channels of your sound card are muted by default.
168 You can use the <command>alsamixer</command> program to change
169 this. Use <command>speaker-test</command> to check that your
170 settings have been applied correctly. You should hear
171 <quote>pink noise</quote> on your speakers.
172 </para>
173
174 <para>
175 The <filename>alsactl</filename> program is normally run from a
176 standard <application>udev</application> rule. The first time it
177 is run, it will complain that there is no state in
178 <filename>/var/lib/alsa/asound.state</filename>. You can prevent
179 this by running the following commands as the
180 <systemitem class="username">root</systemitem> user:
181 </para>
182
183<screen role="root"><userinput>alsactl -L store</userinput></screen>
184
185 <para>
186 The volume settings should be restored from the saved state by
187 <application>Udev</application> when the device is detected
188 (during boot or when plugged in for USB devices).
189 </para>
190
191 <para>
192 All sound devices are not accessible for any user except
193 <systemitem class="username">root</systemitem> and members of the
194 <systemitem class="groupname">audio</systemitem> group. Add any
195 users that might use the sound devices to that group:
196 </para>
197
198<screen role="root"><userinput>usermod -a -G audio <replaceable>&lt;username&gt;</replaceable></userinput></screen>
199
200 <note>
201 <para>
202 You may need to log out and back in again to refresh your group
203 memberships. '<command>su <replaceable>&lt;username&gt;</replaceable></command>'
204 should work as well.
205 </para>
206 </note>
207
208 </sect3>
209
210 <sect3 id="alsa-utils-init" revision="sysv">
211 <title>Boot Script</title>
212
213 <indexterm zone="alsa-utils alsa-utils-init">
214 <primary sortas="f-alsa">alsa</primary>
215 </indexterm>
216
217 <para>
218 To automatically store and restore volume settings (if udev rule doesn't
219 work for you) when the system is rebooted, install the
220 <filename>/etc/rc.d/init.d/alsa</filename> boot script from the
221 <xref linkend="bootscripts" revision="sysv"/>
222 <xref linkend="systemd-units" revision="systemd"/> package.
223 </para>
224
225<screen role="root"><userinput>make install-alsa</userinput></screen>
226
227 </sect3>
228
229 </sect2>
230
231 <sect2 role="content">
232 <title>Contents</title>
233
234 <segmentedlist>
235 <segtitle>Installed Programs</segtitle>
236 <segtitle>Installed Libraries</segtitle>
237 <segtitle>Installed Directories</segtitle>
238
239 <seglistitem>
240 <seg>
241 aconnect, alsactl, alsaloop, alsamixer, alsatplg,
242 alsaucm, amidi, amixer, aplay, aplaymidi, arecord (symlink),
243 arecordmidi, aseqdump, aseqnet, axfer, iecset, and speaker-test
244 </seg>
245 <seg>
246 None
247 </seg>
248 <seg>
249 /usr/share/sounds/alsa and /var/lib/alsa
250 </seg>
251 </seglistitem>
252 </segmentedlist>
253
254 <variablelist>
255 <bridgehead renderas="sect3">Short Descriptions</bridgehead>
256 <?dbfo list-presentation="list"?>
257 <?dbhtml list-presentation="table"?>
258
259 <varlistentry id="aconnect">
260 <term><command>aconnect</command></term>
261 <listitem>
262 <para>
263 is a utility for connecting and disconnecting two
264 existing ports in the ALSA sequencer system.
265 </para>
266 <indexterm zone="alsa-utils aconnect">
267 <primary sortas="b-aconnect">aconnect</primary>
268 </indexterm>
269 </listitem>
270 </varlistentry>
271
272 <varlistentry id="alsactl">
273 <term><command>alsactl</command></term>
274 <listitem>
275 <para>
276 is used to control advanced settings for ALSA sound card drivers.
277 Use this if alsamixer cannot utilize all of your sound card's
278 features.
279 </para>
280 <indexterm zone="alsa-utils alsactl">
281 <primary sortas="b-alsactl">alsactl</primary>
282 </indexterm>
283 </listitem>
284 </varlistentry>
285
286 <varlistentry id="alsaloop">
287 <term><command>alsaloop</command></term>
288 <listitem>
289 <para>
290 allows creation of a PCM loopback between a PCM capture
291 device and a PCM playback device.
292 </para>
293 <indexterm zone="alsa-utils alsaloop">
294 <primary sortas="b-alsaloop">alsaloop</primary>
295 </indexterm>
296 </listitem>
297 </varlistentry>
298
299 <varlistentry id="alsamixer">
300 <term><command>alsamixer</command></term>
301 <listitem>
302 <para>
303 is an Ncurses based mixer program for use with
304 the ALSA sound card drivers.
305 </para>
306 <indexterm zone="alsa-utils alsamixer">
307 <primary sortas="b-alsamixer">alsamixer</primary>
308 </indexterm>
309 </listitem>
310 </varlistentry>
311
312 <varlistentry id="alsaucm">
313 <term><command>alsaucm</command></term>
314 <listitem>
315 <para>
316 allows applications to access the hardware in an abstracted manner
317 </para>
318 <indexterm zone="alsa-utils alsaucm">
319 <primary sortas="b-alsaucm">alsaucm</primary>
320 </indexterm>
321 </listitem>
322 </varlistentry>
323
324 <varlistentry id="amidi">
325 <term><command>amidi</command></term>
326 <listitem>
327 <para>
328 is used to read from and write to ALSA
329 RawMIDI ports.
330 </para>
331 <indexterm zone="alsa-utils amidi">
332 <primary sortas="b-amidi">amidi</primary>
333 </indexterm>
334 </listitem>
335 </varlistentry>
336
337 <varlistentry id="amixer">
338 <term><command>amixer</command></term>
339 <listitem>
340 <para> allows command-line control of the mixers for the
341 ALSA sound card drivers.</para>
342 <indexterm zone="alsa-utils amixer">
343 <primary sortas="b-amixer">amixer</primary>
344 </indexterm>
345 </listitem>
346 </varlistentry>
347
348 <varlistentry id="aplay">
349 <term><command>aplay</command></term>
350 <listitem>
351 <para>
352 is a command-line soundfile player for the
353 ALSA sound card drivers.
354 </para>
355 <indexterm zone="alsa-utils aplay">
356 <primary sortas="b-aplay">aplay</primary>
357 </indexterm>
358 </listitem>
359 </varlistentry>
360
361 <varlistentry id="aplaymidi">
362 <term><command>aplaymidi</command></term>
363 <listitem>
364 <para>
365 is a command-line utility that plays the specified
366 MIDI file(s) to one or more ALSA sequencer ports.
367 </para>
368 <indexterm zone="alsa-utils aplaymidi">
369 <primary sortas="b-aplaymidi">aplaymidi</primary>
370 </indexterm>
371 </listitem>
372 </varlistentry>
373
374 <varlistentry id="arecord">
375 <term><command>arecord</command></term>
376 <listitem>
377 <para>
378 is a command-line soundfile recorder for the
379 ALSA sound card drivers.
380 </para>
381 <indexterm zone="alsa-utils arecord">
382 <primary sortas="b-arecord">arecord</primary>
383 </indexterm>
384 </listitem>
385 </varlistentry>
386
387 <varlistentry id="arecordmidi">
388 <term><command>arecordmidi</command></term>
389 <listitem>
390 <para>
391 is a command-line utility that records a standard
392 MIDI file from one or more ALSA sequencer ports.
393 </para>
394 <indexterm zone="alsa-utils arecordmidi">
395 <primary sortas="b-arecordmidi">arecordmidi</primary>
396 </indexterm>
397 </listitem>
398 </varlistentry>
399
400 <varlistentry id="aseqdump">
401 <term><command>aseqdump</command></term>
402 <listitem>
403 <para>
404 is a command-line utility that prints the sequencer events it
405 receives as text.
406 </para>
407 <indexterm zone="alsa-utils aseqdump">
408 <primary sortas="b-aseqdump">aseqdump</primary>
409 </indexterm>
410 </listitem>
411 </varlistentry>
412
413 <varlistentry id="aseqnet">
414 <term><command>aseqnet</command></term>
415 <listitem>
416 <para>
417 is an ALSA sequencer client which sends and
418 receives event packets over a network.
419 </para>
420 <indexterm zone="alsa-utils aseqnet">
421 <primary sortas="b-aseqnet">aseqnet</primary>
422 </indexterm>
423 </listitem>
424 </varlistentry>
425
426 <varlistentry id="axfer">
427 <term><command>axfer</command></term>
428 <listitem>
429 <para>
430 is a command-line recorder and player used to transfer audio frames
431 between sound devices and files.
432 </para>
433 <indexterm zone="alsa-utils axfer">
434 <primary sortas="b-axfer">axfer</primary>
435 </indexterm>
436 </listitem>
437 </varlistentry>
438
439 <varlistentry id="iecset">
440 <term><command>iecset</command></term>
441 <listitem>
442 <para>
443 is a small utility to set or dump the IEC958 (or so-called
444 <quote>S/PDIF</quote>) status bits of the specified sound
445 card via the ALSA control API.
446 </para>
447 <indexterm zone="alsa-utils iecset">
448 <primary sortas="b-iecset">iecset</primary>
449 </indexterm>
450 </listitem>
451 </varlistentry>
452
453 <varlistentry id="speaker-test">
454 <term><command>speaker-test</command></term>
455 <listitem>
456 <para>
457 is a command-line speaker test tone generator for ALSA.
458 </para>
459 <indexterm zone="alsa-utils speaker-test">
460 <primary sortas="b-speaker-test">speaker-test</primary>
461 </indexterm>
462 </listitem>
463 </varlistentry>
464
465 </variablelist>
466
467 </sect2>
468
469</sect1>
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