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202 lines
7.1 KiB
202 lines
7.1 KiB
<?xml version="1.0" ?>
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<!DOCTYPE article PUBLIC "-//KDE//DTD DocBook XML V4.2-Based Variant V1.1//EN"
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"dtd/kdex.dtd" [
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<!ENTITY midi-kcontrol SYSTEM "midi.docbook">
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<!ENTITY % addindex "IGNORE">
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<!ENTITY % English "INCLUDE"> <!-- change language only here -->
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]>
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<article lang="&language;">
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<articleinfo>
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<authorgroup>
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<author>&Mike.McBride;</author>
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<author>&Jost.Schenck;</author>
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<!-- TRANS:ROLES_OF_TRANSLATORS -->
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</authorgroup>
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<date>2005-02-20</date>
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<releaseinfo>3.4</releaseinfo>
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<keywordset>
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<keyword>KDE</keyword>
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<keyword>KControl</keyword>
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<keyword>sound server</keyword>
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<keyword>sound</keyword>
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<keyword>aRts</keyword>
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</keywordset>
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</articleinfo>
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<sect1 id="sndserver">
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<title>Sound System</title>
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<para>This control module is used to configure the settings for the
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&arts; sound server (the &kde; sound server).</para>
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<sect2 id="sndserver-general">
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<title>&arts;</title>
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<para>The top option, labeled <guilabel>Enable the sound system</guilabel>,
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enables (or disables) the &arts; sound server entirely.</para>
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<tip>
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<para>You can find out more about &arts; in general by typing
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<userinput>help:/artsbuilder</userinput> into the &konqueror; location
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bar, or by finding the &arts-builder; documentation in &khelpcenter;.
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</para>
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</tip>
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<para>The rest of the panel consists of options for the &arts;
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sound server.</para>
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<variablelist>
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<varlistentry>
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<term><guilabel>Enable networked sound</guilabel></term>
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<listitem>
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<para>If this option is enabled, then sound requests from the network
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will be honored by the sound server. If this option is disabled, the sound
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server will only honor requests from the local computer.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><guilabel>Run with the highest possible priority (realtime priority)</guilabel></term>
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<listitem><para>Enabling this option will give the sound server priority over
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other applications, which will help alleviate any problems delivering
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uninterrupted sound.</para>
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<note><para>This option may require permissions you do not have as a regular
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user.</para>
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<para>This option also relies on certain real time support from your
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system which may not be available.</para>
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<para>If you do not have the necessary permissions, or your system does
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not have the real time support necessary, enabling this option will not
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cause problems.</para></note></listitem>
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</varlistentry>
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<varlistentry>
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<term><guilabel>Sound buffer:</guilabel></term>
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<listitem><para>This slider determines how quickly the sound server can use your
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computer's resources. The faster the response time, the higher the
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<acronym>CPU</acronym> load will be.</para>
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<tip><para>I would recommend that you start with the sound server set at
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250 ms, and use &kde; for a while. If you notice that the sound does
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not work correctly, increase the responsiveness one step at a time until
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the problems disappear.</para></tip>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><guilabel>Auto-suspend if idle after:</guilabel></term>
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<listitem>
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<para>Normally &arts; locks the sound card device, so that other
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applications cannot use it. If you enable this option, then if &arts;
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has been idle for the amount of time you set, it will suspend itself,
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allowing any application access to the sound hardware. If &arts;
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receives another request, it will unsuspend, and continue as normal.
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Enabling this option may cause a small delay when you start an &arts;
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application.</para>
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</listitem>
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</varlistentry>
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</variablelist>
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<para>At the bottom of this page are two buttons to allow you to test your
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settings, labelled <guibutton>Test Sound</guibutton> and <guilabel>Test
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MIDI</guilabel> respectively.</para>
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</sect2>
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<sect2 id="sndserver-soundio">
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<title>Hardware</title>
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<para>The first option you can configure in the
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<guilabel>Hardware</guilabel> panel is <guilabel>Select the audio
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device:</guilabel>. It tells &arts; which sound system to use for input and
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output of sound. Current choices are <acronym>ALSA</acronym> (Advanced
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&Linux; Sound Architecture), <acronym>OSS</acronym> (Open Sound System),
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<acronym>ESD</acronym> (Enlightenment Sound Daemon), no audio at all and
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autodetect. In most cases <quote>Autodetect</quote> will be perfect for
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you.</para>
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<para>Other options are:</para>
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<variablelist>
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<varlistentry>
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<term><guilabel>Full duplex</guilabel></term>
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<listitem><para>This option allows the sound server to play and record sound at
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the same time. This option should be enabled if you use applications (such as
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Internet telephones) which require simultaneous record and
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playback.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><guilabel>Use custom sampling rate:</guilabel></term>
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<listitem>
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<para>Normally, the sound server defaults to using a sampling rate of
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44100 Hz (<acronym>CD</acronym> quality), which is supported on almost all
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hardware. If you are using certain Yamaha soundcards, you might need to
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configure this to 48000 Hz here; if you are using old SoundBlaster cards, like
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SoundBlaster Pro, you might need to change this to 22050 Hz. All other values
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are possible too and may make sense in certain contexts (&ie; professional
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studio equipment).</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><guilabel>Quality:</guilabel></term>
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<listitem>
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<para>These settings allow you to configure the quality of the sounds that
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will be played.</para>
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<tip>
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<para>Note that a higher sound quality causes a higher <acronym>CPU</acronym>
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usage.</para>
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<para>If you find sound is slow, or using too much
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<acronym>CPU</acronym>, try reducing this setting.</para>
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</tip>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><guilabel>Override device location:</guilabel></term>
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<listitem>
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<para>Normally, the sound server defaults to using the device called
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<filename class="devicefile">/dev/dsp</filename> for sound output. This
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should work in most cases. An exception is, for instance, if you are using
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devfs, then you should use <filename
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class="devicefile">/dev/sound/dsp</filename> instead. Other alternatives
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are things like <filename class="devicefile">/dev/dsp0</filename> or
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<filename class="devicefile">/dev/dsp1</filename> if you have a
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soundcard that supports multiple outputs or you have multiple
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soundcards.</para>
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<tip>
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<para>If you often use non-&arts; aware applications, and you have a
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soundcard that supports it, try setting &arts; to use a different
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device than <filename class="devicefile">/dev/dsp</filename>. This
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way, other applications will be able to use the default device, while
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&arts; is still running, without giving any error messages.</para>
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</tip>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><guilabel>Other custom options:</guilabel></term>
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<listitem><para>There are some options offered by
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&arts; which may not be available in this control module, so you can add
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command line options here which will be passed directly to
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<application>artsd</application>. The options will be appended, so they
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will override the choices made in the
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<acronym>GUI</acronym>. To see the possible choices, open a &konsole;
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window, and type <userinput><command>artsd</command>
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<option>-h</option></userinput>.</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</sect2>
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&midi-kcontrol;
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</sect1>
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</article>
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