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	<id>https://wiki.videolan.org/index.php?action=history&amp;feed=atom&amp;title=Documentation%3AModules%2Falsa</id>
	<title>Documentation:Modules/alsa - Revision history</title>
	<link rel="self" type="application/atom+xml" href="https://wiki.videolan.org/index.php?action=history&amp;feed=atom&amp;title=Documentation%3AModules%2Falsa"/>
	<link rel="alternate" type="text/html" href="https://wiki.videolan.org/index.php?title=Documentation:Modules/alsa&amp;action=history"/>
	<updated>2026-11-04T21:25:24Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
	<generator>MediaWiki 1.43.11</generator>
	<entry>
		<id>https://wiki.videolan.org/index.php?title=Documentation:Modules/alsa&amp;diff=61405&amp;oldid=prev</id>
		<title>DoesItReallyMatter: Move shortcut(s) to template</title>
		<link rel="alternate" type="text/html" href="https://wiki.videolan.org/index.php?title=Documentation:Modules/alsa&amp;diff=61405&amp;oldid=prev"/>
		<updated>2019-05-16T05:46:29Z</updated>

		<summary type="html">&lt;p&gt;Move shortcut(s) to template&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 05:46, 16 May 2019&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l8&quot;&gt;Line 8:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 8:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;HDMI support is planned for VLC 4.0.0 through the &amp;lt;code&amp;gt;--alsa-passthrough&amp;lt;/code&amp;gt; option.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;HDMI support is planned for VLC 4.0.0 through the &amp;lt;code&amp;gt;--alsa-passthrough&amp;lt;/code&amp;gt; option.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-added&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;The audio output module has no shortcut. The access module has a shortcut of &amp;lt;code&amp;gt;alsa&amp;lt;/code&amp;gt;.&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-added&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== Options ==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== Options ==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;=== Audio output ===&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;=== Audio output ===&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{Module|name=alsa|type=Audio output|os=Linux|description=[[ALSA]] audio output}}&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{Module|name=alsa|type=Audio output|os=Linux|description=[[ALSA]] audio output&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;|sc=none&lt;/ins&gt;}}&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{Option&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{Option&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;|name=alsa-audio-device&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;|name=alsa-audio-device&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l29&quot;&gt;Line 29:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 27:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;=== Access ===&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;=== Access ===&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{Module|name=alsa|type=Access|first_version=1.0.0|os=Linux|description=[[ALSA]] audio capture}}&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{Module|name=alsa|type=Access|first_version=1.0.0|os=Linux|description=[[ALSA]] audio capture&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;|sc=alsa&lt;/ins&gt;}}&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{Option&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{Option&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;|name=alsa-stereo&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;|name=alsa-stereo&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>DoesItReallyMatter</name></author>
	</entry>
	<entry>
		<id>https://wiki.videolan.org/index.php?title=Documentation:Modules/alsa&amp;diff=60080&amp;oldid=prev</id>
		<title>DoesItReallyMatter: Create page marked up/adapted from source code/changelog</title>
		<link rel="alternate" type="text/html" href="https://wiki.videolan.org/index.php?title=Documentation:Modules/alsa&amp;diff=60080&amp;oldid=prev"/>
		<updated>2019-03-21T06:53:57Z</updated>

		<summary type="html">&lt;p&gt;Create page marked up/adapted from source code/changelog&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;{{docmod|oss}} and alsa audio capture support were removed from {{docmod|v4l}} and {{docmod|v4l2}} in VLC 1.0.0, but accesses were provided as sub-modules. To emulate old behaviour, use &amp;lt;code&amp;gt;--input-slave oss://&amp;lt;/code&amp;gt; or &amp;lt;code&amp;gt;--input-slave alsa://&amp;lt;/code&amp;gt;.&lt;br /&gt;
&lt;br /&gt;
In the module options below &amp;lt;var&amp;gt;AOUT_CHANS_FRONT&amp;lt;/var&amp;gt; and other variables are defined in {{VLCSourceFile|include/vlc_es.h}}. The values are not defined here because of their complexity.&lt;br /&gt;
&lt;br /&gt;
Audio channels in VLC 2.0.1 must be configured manually (bugs) but &amp;lt;code&amp;gt;--alsa-audio-channels&amp;lt;/code&amp;gt; defaults to stereo.&lt;br /&gt;
&lt;br /&gt;
The access module option &amp;lt;code&amp;gt;--alsa-format&amp;lt;/code&amp;gt; has been deprecated since VLC 2.1.0.&lt;br /&gt;
&lt;br /&gt;
HDMI support is planned for VLC 4.0.0 through the &amp;lt;code&amp;gt;--alsa-passthrough&amp;lt;/code&amp;gt; option.&lt;br /&gt;
&lt;br /&gt;
The audio output module has no shortcut. The access module has a shortcut of &amp;lt;code&amp;gt;alsa&amp;lt;/code&amp;gt;.&lt;br /&gt;
&lt;br /&gt;
== Options ==&lt;br /&gt;
=== Audio output ===&lt;br /&gt;
{{Module|name=alsa|type=Audio output|os=Linux|description=[[ALSA]] audio output}}&lt;br /&gt;
{{Option&lt;br /&gt;
|name=alsa-audio-device&lt;br /&gt;
|value=string&lt;br /&gt;
|default=default&lt;br /&gt;
|description=Audio output device (using ALSA syntax)&lt;br /&gt;
}}&lt;br /&gt;
{{Option&lt;br /&gt;
|name=alsa-audio-channels&lt;br /&gt;
|value=integer&lt;br /&gt;
|default=&amp;lt;var&amp;gt;AOUT_CHANS_FRONT&amp;lt;/var&amp;gt;&lt;br /&gt;
|description=Channels available for audio output. If the input has more channels than the output, it will be down-mixed. This parameter is ignored when digital pass-through is active&lt;br /&gt;
}}&lt;br /&gt;
{{Clear}}&lt;br /&gt;
&lt;br /&gt;
=== Access ===&lt;br /&gt;
{{Module|name=alsa|type=Access|first_version=1.0.0|os=Linux|description=[[ALSA]] audio capture}}&lt;br /&gt;
{{Option&lt;br /&gt;
|name=alsa-stereo&lt;br /&gt;
|value=boolean&lt;br /&gt;
|default=enabled&lt;br /&gt;
|description=Stereo&lt;br /&gt;
}}&lt;br /&gt;
{{Option&lt;br /&gt;
|name=alsa-samplerate&lt;br /&gt;
|value=integer&lt;br /&gt;
|default=48000&lt;br /&gt;
|description=[[Sample rate]] (Hertz)&lt;br /&gt;
|select=192000, 176400, 96000, 88200, 48000, 44100, 32000, 22050, 24000, 16000, 11025, 8000, 4000&lt;br /&gt;
}}&lt;br /&gt;
{{Clear}}&lt;br /&gt;
&lt;br /&gt;
== Source code ==&lt;br /&gt;
* {{VLCSourceFile|modules/audio_output/alsa.c}}&lt;br /&gt;
* {{VLCSourceFile|modules/access/alsa.c}}&lt;br /&gt;
&lt;br /&gt;
{{Documentation footer}}&lt;/div&gt;</summary>
		<author><name>DoesItReallyMatter</name></author>
	</entry>
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