faq.docbook

Amarok是一款在LINUX或其他类UNIX操作系统中运行的音频播放器软件。 经过两年开发后

<chapter id="faq">
<title>Questions and Answers</title>

<sect1 id="faq1">
<title>What is &amarok;?</title>

<qandaset id="what-is">
<qandaentry>

<question>
<para>What is &amarok;?</para>
</question>

<answer>
<para>&amarok; is a music player for Unix systems (eg. Linux). More information can be found in a <ulink url="http://amarok.kde.org/amarokwiki/index.php/What_is_Amarok%3F">summary of its features</ulink> and the <ulink url="http://amarok.kde.org/index.php?set_albumName=Screenshots&amp;option=com_gallery&amp;Itemid=60&amp;include=view_album.php">screenshot gallery</ulink>.</para>
</answer>

</qandaentry>
</qandaset>

</sect1>

<sect1 id="faq2">
<title>Installation</title>

<qandaset id="installation-faq">


<qandaentry>
<question>
<para>Can I use &amarok; without KDE?</para>
</question>

<answer>
<para>&amarok; only requires KDElibs, none of the other KDE stuff. So you have to have KDElibs installed properly (including all the binaries that come with it, as &amarok; needs some of these to find plugins and for the script plugins). We have written an entry for <ulink url="http://amarok.kde.org/amarokwiki/index.php/KDElibs_without_aRts">how to compile a minimal KDElibs</ulink>, which you may find useful.</para>
<para>For some features to work correctly, such as the on-screen display, require your window manager to support the relevant freedesktop.org standards. So GNOME will work well, but fluxbox will have some trouble. We are committed to supporting &amarok; on all platforms. We use KDElibs and Qt because they provide an excellent development environment.</para>
</answer>
</qandaentry>


</qandaset>
</sect1>


<sect1 id="faq3">
<title>Troubleshooting</title>

<qandaset id="troubleshooting">

<qandaentry>
<question>
<para>&amarok; crashes during the Collection scan, always at the same point. What's happenning?</para>
</question>

<answer>
<para>It's likely that one file in your Collection triggers a bug in the TagLib library, and makes &amarok; crash. You can identify this file by looking at ~/.kde/share/apps/amarok/collection_scan.log. You should report this crash to the TagLib bug database on <ulink url="http://bugs.kde.org/">bugs.kde.org</ulink> and attach the broken file. Afterward you can remove the file from your Collection and repeat the scanning.</para>
</answer>
</qandaentry>

<qandaentry>
<question>
<para>&amarok; crashes when I play a certain track, everytime, what's wrong?</para>
</question>

<answer>
<para>This usually means TagLib is crashing while reading that track's tags. Report the bug against TagLib at <ulink url="http://bugs.kde.org/">bugs.kde.org</ulink>.</para>
</answer>
</qandaentry>


<qandaentry>
<question>
<para>&amarok; crashes often, what can I do?</para>
</question>

<answer>
<para>Upgrade your ALSA libs and utils to the latest version, or use OSS, or OSS emulation.</para>
<para>If you use MySQL as the database backend, try the SQLite one, it is slightly more mature (the &amarok; code, not the db itself) </para>
<para> Try a different audio-engine.</para>
<para>Make sure that all the libraries that &amarok; uses were compiled with the same GCC version as &amarok; itself. The situation when &amarok; is compiled using GCC 3.4.x and linked against taglib which was compiled using GCC 3.3.x can lead to crashes during tag editing.</para>
<para>If you're using KDE with artsd, try disabling "auto suspend if idle after..." in the sound system settings or at least don't use a value of 1 second since that will interfere every time amarok switches songs.</para>
<para>Otherwise, forward us the backtraces when the email pops-up (you'll see). If you get a crash often you will get it fixed for sure if you forward a really good backtrace to us. See the next sections for assistance there.</para>
</answer>
</qandaentry>


<qandaentry>
<question>
<para>How can I obtain a decent backtrace?</para>
</question>

<answer>
<para>See the <ulink url="http://amarok.kde.org/amarokwiki/index.php/Debugging_HowTo">Debugging HowTo</ulink>.</para>
</answer>
</qandaentry>


<qandaentry>
<question>
<para>&amarok; is not using the tags I know are in my files!</para>
</question>

<answer>
<para>If Konqueror or other apps are displaying different Title, Artist, Album or Genre information than &amarok; is picking up when it creates your collection, it may be reading the older ID3v1 format tags rather than the newer ID3v2 tags. This can be due to your <guilabel>Encodings</guilabel> setting: Go to <menuchoice><guimenu>Settings</guimenu> <guimenuitem>Configure &amarok;</guimenuitem></menuchoice>, and then find the Encodings section of the Settings panel. Uncheck all checkboxes to "Do not decode the following as latin1". Rescan your collection to pick up the ID3v2 tags. </para>
</answer>
</qandaentry>


<qandaentry>
<question>
<para>&amarok; is not displaying my utf-8 id3v2 tags properly!</para>
</question>

<answer>
<para>This is because most applications put utf8 data into id3v2 tags but do not specify the encoding as unicode. This perl script will fix that.</para>
<programlisting>
#!/usr/bin/perl
die "File $ARGV[0] doesn't exist" unless -f $ARGV[0];
use MP3::Mplib;
my $mp3 = MP3::Mplib->new($ARGV[0]);
my $v2tag = $mp3->get_v2tag;
print "Error writing tags of $ARGV[0]\n" unless $mp3->set_v2tag($v2tag,&amp;UTF8);
</programlisting>
<note><para>This script requires the perl module MP3::Mplib which can be installed by issuing this command 
<command>perl -MCPAN -e 'install MP3::Mplib'</command></para></note>
</answer>
</qandaentry>

<qandaentry>
<question>
<para>Why do my statusbar icons always look active?</para>
</question>

<answer>
<para>&amarok; statusbar icons(Random/Repeat/Append) look constantly Active on KDE 3.4.0. This is a known bug in KDE 3.4.0. The icon effects are sometimes forgotten. Simple fix kcontrol  <menuchoice><guimenu>Appearance</guimenu><guisubmenu>Icons</guisubmenu><guimenuitem>Advanced</guimenuitem></menuchoice>, set disabled state to "Gray" and "Semi-transparent". Note that sometimes you must click on the icon 3 times before it has an effect after making this change. </para>
</answer>
</qandaentry>


<qandaentry>
<question>
<para>Why does &amarok; complain about undefined symbols and then refuses to start?</para>
</question>

<answer>
<para>if you get this error : "amarokapp: symbol lookup error: amarokapp: undefined symbol: _ZN11KSystemTray9setPixmapERK7QPixmap", then check that amarokapp uses the correct libqt (check with : ldd `which amarokapp` | grep qt). </para>
<para>To fix it, you might have to remove any conflicting libqt and/or edit /etc/ld.so.conf so it pick up the correct version first.</para>
</answer>
</qandaentry>


</qandaset>
</sect1>


<sect1 id="faq5">
<title>General Usage</title>

<qandaset id="general-use">


<qandaentry>
<question>
<para>Where can I get support for &amarok;?</para>
</question>

<answer>
<para>There are several options. Often times problems you have with the initial install of &amarok; are best answered by experts of your particular Unix or Linux distribution. You may seek help from fellow users and developers at the <ulink url="http://amarok.kde.org/index.php?option=com_simpleboard">&amarok; forum</ulink> and the <ulink url="irc://irc.freenode.net/amarok">IRC channel</ulink> at irc.freenode.net channel #amarok.</para>
<note><para><ulink url="http://bugs.kde.org">Bugzilla</ulink> is not a place to seek support. Please do enter a bug if you are serious about helping fix a bug in &amarok; itself.</para></note>
</answer>
</qandaentry>


<qandaentry>
<question>
<para>When I start &amarok;, I see an empty playlist. How do I actually get tracks in there?</para>
</question>

<answer>
<para>Simple. Use the File Browser on the left side to navigate to the desired directory. Then drag the files into the Playlist part on the right.</para>
</answer>
</qandaentry>


<qandaentry>
<question>
<para>Where is the"Home" tab?</para>
</question>

<answer>
<para>To avoid interface-clutter "Home" tab has been transformed into "Statistics" tool, available under <menuchoice><guimenu>Tools</guimenu><guimenuitem>Statistics</guimenuitem></menuchoice>.</para>
</answer>
</qandaentry>


<qandaentry>
<question>
<para>Is there a way to set up amount of information that "Context" borwser shows?</para>
</question>

<answer>
<para>Yes, use the right mouse button menu anywhere on "Context" browser to modify it.</para>
</answer>
</qandaentry>


<qandaentry>
<question>
<para>Why are the stars and numbers in the "Context" browser are out of sync?</para>
</question>

<answer>
<para>The meaning of those symbols has changed in Amarok 1.4 "Fast Forward": stars represents the user-defined rating, while numbers shows calculated score.</para>
</answer>
</qandaentry>


<qandaentry>
<question>
<para>Clicking on stars in "Context" browser does not work! How do I rate a song?</para>
</question>

<answer>
<para>To rate a track you need a "Rating" column in playlist. Click with the &RMB; on playlist title, and choose <menuchoice><guimenu>Add Column</guimenu><guimenuitem>Rating</guimenuitem></menuchoice>. Click anywhere inside "Rating" column to set up rating for a track. You can also use shortcuts [Win]+[1-5] to quickly rate a song, with Amarok running in the background.</para>
</answer>
</qandaentry>


<qandaentry>
<question>
<para>How do I remove tracks from the Playlist?</para>
</question>

<answer>
<para>Select the files you want to remove, and press Del key on your keyboard. Or right-click the selection and choose Remove Selected from pop up menu.</para>
</answer>
</qandaentry>


<qandaentry>
<question>
<para>How can I load a playlist?</para>
</question>

<answer>
<para>Just drag and drop the playlist file into the Playlist, like you would do with any other file. It's that simple! </para>
</answer>
</qandaentry>

<qandaentry>
<question>
<para>How can I save the current playlist?</para>
</question>

<answer>
<para>The Save playlist button is next to Add Media button in the Playlist Toolbar. Just click it!</para>
</answer>
</qandaentry>


<qandaentry>
<question>
<para>There are no visualizations in the visualizations dialog.</para>
</question>

<answer>
<para>You probably don't have xmms-config installed, reconfigure and build after installing the appropriate xmms-devel package. You also may want to install the latest version of <ulink url="http://libvisual.sourceforge.net/v2/">libvisual</ulink>, which has some ultra fancy visualizations.</para>
</answer>
</qandaentry>


<qandaentry>
<question>
<para>Where's the equalizer?</para>
</question>

<answer>
<para>The Equalizer Window can be found in the right mouse button menu. You can also find it in the Menubar by selecting <menuchoice><guimenu>Tools</guimenu> <guimenuitem>Equalizer</guimenuitem></menuchoice>.</para>
</answer>
</qandaentry>


</qandaset>

</sect1>


<sect1 id="faq6">
<title>Playback</title>

<qandaset id="playback-faq">


<qandaentry>
<question>
<para>What media types does &amarok; support?</para>
</question>

<answer>
<para>None. Yes, that's right! None! We have a backend independent approach, so the question you should be asking is "What media types does GStreamer/xine/aRts/NMM/MAS/KDEmm support?" So as you can guess we pretty much support absolutely every audio format you can think of. GStreamer can even decode text and PNG! </para>
<para>For more information, have a look at <ulink url="http://amarok.kde.org/amarokwiki/index.php/Audio_Engine_Comparison">Audio Engine Comparison</ulink>.</para>
</answer>
</qandaentry>


<qandaentry>
<question>
<para>Why can't &amarok; play MP3s?</para>
</question>

<answer>
<para>It can! Chances are you're using Fedora/RedHat linux, they don't ship with MP3 decoders by default (due to patenting issues). Solution: 
Alt-F2, gg:redhat mp3 kde, ENTER</para>
</answer>
</qandaentry>


<qandaentry>
<question>
<para>&amarok; won't play MP3's under SUSE Linux 9.3, what could I do?</para>
</question>

<answer>
<para>Open the "YaST Online Update" and install the 'Multimedia Option Pack 1' patch. Voila, &amarok; plays MP3's.</para>
</answer>
</qandaentry>


<qandaentry>
<question>
<para>With GStreamer-engine I'm getting 100% CPU usage while playing. How can I fix it?</para>
</question>

<answer>
<para>When using GStreamer-engine with alsasink, &amarok; requires the device to provide a mixer. Mixing allows multiple applications to access the device at the same time, and output sound simultaneously. This can either be achieved by using a soundcard with hardware-mixing (e.g. SBLive), or by using the "dmix" plugin for alsa, which provides software-mixing. See <ulink url="http://amarok.kde.org/amarokwiki/index.php/Setting_up_Dmix_for_ALSA">Setting up Dmix for ALSA</ulink>. </para>
<para>After installation you need to specify "dmix" as the sound device in the engine settings dialog.</para>
</answer>
</qandaentry>


<qandaentry>
<question>
<para>I can't get any media to play in &amarok;, why not?</para>
</question>

<answer>
<para>You need to test the sound frameworks at the commandline: </para>