/usr/share/help/kn/gnome-help/sound-usespeakers.page is in gnome-user-docs-kn 3.28.1-0ubuntu1.
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<page xmlns="http://projectmallard.org/1.0/" xmlns:its="http://www.w3.org/2005/11/its" type="topic" style="task" id="sound-usespeakers" xml:lang="kn">
<info>
<link type="guide" xref="media#sound"/>
<link type="seealso" xref="sound-usemic"/>
<revision pkgversion="3.7.1" version="0.2" date="2012-11-16" status="outdated"/>
<revision pkgversion="3.10" date="2013-11-01" status="review"/>
<revision pkgversion="3.13.92" date="2014-09-22" status="candidate"/>
<revision pkgversion="3.18" date="2015-09-30" status="final"/>
<credit type="author">
<name>Shaun McCance</name>
<email>shaunm@gnome.org</email>
</credit>
<credit type="editor">
<name>Michael Hill</name>
<email>mdhillca@gmail.com</email>
</credit>
<credit type="editor">
<name>Ekaterina Gerasimova</name>
<email>kittykat3756@gmail.com</email>
</credit>
<include xmlns="http://www.w3.org/2001/XInclude" href="legal.xml"/>
<desc>Connect speakers or headphones and select a default audio output
device.</desc>
</info>
<title>Use different speakers or headphones</title>
<p>You can use external speakers or headphones with your computer. Speakers
usually either connect using a circular TRS (<em>tip, ring, sleeve</em>) plug
or a USB.</p>
<p>If your speakers or headphones have a TRS plug, plug it into the
appropriate socket on your computer. Most computers have two sockets: one for
microphones and one for speakers. This socket is usually light green in color
or is accompanied by a picture of headphones. Speakers or headphones
plugged into a TRS socket are usually used by default. If not, see the
instructions below for selecting the default device.</p>
<p>Some computers support multi-channel output for surround sound. This
usually uses multiple TRS jacks, which are often color-coded. If you are
unsure which plugs go in which sockets, you can test the sound output in the
sound settings.</p>
<p>If you have USB speakers or headphones, or analog headphones plugged into
a USB sound card, plug them into any USB port. USB speakers act as separate
audio devices, and you may have to specify which speakers to use by
default.</p>
<steps>
<title>Select a default audio input device</title>
<item>
<p>Open the <gui xref="shell-introduction#activities">Activities</gui>
overview and start typing <gui>Sound</gui>.</p>
</item>
<item>
<p>Click on <gui>Sound</gui> to open the panel.</p>
</item>
<item>
<p>In the <gui>Output</gui> tab, select the device that you want to
use.</p>
</item>
</steps>
<p>Use the <gui style="button">Test Speakers</gui> button to check that all
speakers are working and are connected to the correct socket.</p>
</page>
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