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1 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
2 <html>
3 <head>
4 <link rel="stylesheet" type="text/css" href="index.css">
5 <title>The Linux Sampler Project</title>
6
7 <meta http-equiv="content-type"
8 content="text/html; charset=ISO-8859-1">
9
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96
97 </head>
98
99 <body>
100
101 <div id="mainwindow"><img name="LinuxSampler" src="gfx/lsbackground.jpg" alt="LinuxSampler">
102
103 <h1><span class="hidden">The LinuxSampler Project</span></h1>
104
105 <table border=0 cellspacing=0 cellpadding=0><tr><th colspan=2 align=left>
106 <img name="h1blank" src="gfx/h1blank.png" alt="blank"><span class="hidden">about</span></th></tr>
107 <tr><td valign=top>
108 <a id="news" href="index.php" onmouseover="javascript:if(document.images)document.news.src = newsover.src" onmouseout="javascript:if(document.images)document.news.src = newsout.src"><img name="news" src="gfx/mnews.png" alt="news"></a>
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121 </td><td valign=top width="100%">
122 <div id="contents">
123
124 <h2>FAQ</h2>
125 <p class="default">
126 Here is a collection of frequently asked questions. Please read them before asking on
127 the mailing list.
128 </p>
129
130 <h3>linuxsampler? qsampler? libgig? liblscp? hu?</h3>
131 <p class="default">
132 There are currently four subprojects in the LinuxSampler project; linuxsampler,
133 qsampler, libgig and liblscp. linuxsampler is the core of the sampler, it includes the
134 sampler engines and audio and MIDI drivers. linuxsampler itself is decoupled from any
135 user interface. It offers a network server (LSCP server) to allow to be controlled by
136 an arbitrary user frontend from an arbitrary place over a netwrok connection or
137 locally from the same machine as well.
138 qsampler is the first GUI frontend written for linuxsampler, it is written with the Qt
139 GUI library and thus can be compiled for various architectures and operating systems
140 without modifications on the source code.
141 libgig is a C++ library written for loading Gigasampler files and DLS Level 1 and 2
142 files. libgig is used by linuxsampler to load Gigasampler files and it <b>can</b> be
143 used by qsampler to retrieve additional informations about Gigasampler files. liblscp
144 is a C library written as a wrapper around the LSCP network protocol, thus to control
145 linuxsampler. It was originally designed to be used on both sides, that is on server /
146 backend side (linuxsampler) and on client / frontend side (e.g. qsampler). But it's now
147 only used on client side by qsampler at the moment.
148 </p>
149
150 <h3>What do I need to compile and install?</h3>
151 <p class="default">
152 You should compile and install at least linuxsampler. As a beginner you should
153 defintely as well compile and install qsampler, liblscp and libgig. qsampler is a
154 convenient GUI frontend for linuxsampler. qsampler depends on liblscp, so you have to
155 compile and install liblscp before starting to build qsampler. It is recommended to
156 install libgig as well, you don't have to actually because libgig is at the moment
157 statically included with linuxsampler, but qsampler <b>can</b> use it to retrieve
158 additional informations from Gigasampler files.
159 </p>
160
161 <h3>How do I checkout from CVS?</h3>
162 <p class="default">
163 The procedure of checking out the newest version from CVS is described on the
164 <a href="downloads.html">Downloads</a> site.
165 </p>
166
167 <h3>How do I compile from CVS?</h3>
168 <p class="default">
169 The procedure for compiling from CVS is the same for all subprojects, that is no matter
170 if you are compiling linuxsampler, qsampler, libgig or liblscp from CVS, you have to
171 have the autotools (automake, autoconf and libtool) installed and compile it that way:
172 </p>
173 <table class="default" border="0" cellpadding="1" cellspacing="5">
174 <tr>
175 <td><pre class="code">1
176 2
177 3</pre>
178 </td>
179 <td width="100%">
180 <pre class="code">make -f Makefile.cvs
181 ./configure
182 make</pre>
183 </td>
184 </tr>
185 </table>
186
187 <h3>Can I use linuxsampler without a GUI as well?</h3>
188 <p class="default">
189 Yes, but unfortunately there is no console based frontend frontend for linuxsampler (yet).
190 You have to write LSCP scripts and send it to the running linuxsampler application.
191 You can send a LSCP script to linuxsampler on the console with the following command:
192 </p>
193 <table class="default" border="0" cellpadding="1" cellspacing="5">
194 <tr>
195 <td><pre class="code">1</pre>
196 </td>
197 <td width="100%">
198 <pre class="code">cat yourscript.lscp | netcat -t localhost 8888</pre>
199 </td>
200 </tr>
201 </table>
202 <p class="default">
203 Of course you can also replace localhost by the IP address of the machine where
204 linuxsampler is running. Alternatively you can also make a telnet connection (port 8888)
205 to linuxsampler's LSCP server and type commands manually.
206 </p>
207
208
209 <h3>Are there example LSCP script files somewhere?</h3>
210 <p class="default">
211 Yes, have a look on the <a href="documentation.html">Documentation</a> site for some
212 common LSCP script examples. For details about LSCP read the
213 <a href="api/draft-linuxsampler-protocol.html">LSCP reference</a>. Be welcome to ask
214 questions for details about LSCP on the mailing list.
215 </p>
216
217 <a name="dropouts"></a>
218 <h3>I get dropouts (click sounds, noise), what can I do about it?</h3>
219 <p class="default">
220 In order to achieve good results under Linux you need to have a
221 <a href="http://www.linuxdj.com/audio/lad/resourceslatency.php3">patched kernel</a>.
222 There are different patches available depending on what version (2.4.x or 2.6.x) of kernel you use.
223 The <a href="http://jackit.sourceforge.net/docs/faq.php">JACK FAQ site</a> is also a good resource
224 how to configure a realtime stable kernel. But note; LinuxSampler currently has not support for
225 libcap yet, that means if you are still using a 2.4.x Linux kernel you most probably have to run
226 LinuxSampler with root priviliges (support for libcap is planned though). As a rule of thumb: if
227 you don't get warnings like "cannot mlockall() memory" you are safe to run it as ordinary user as well.
228 </p>
229
230 </div>
231 </td></tr></table>
232
233 </div>
234
235 </body>
236 </html>

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