<!DOCTYPE glossary PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd" [
+<!ENTITY % BOOK_ENTITIES SYSTEM "../../build/manual/ent/entities.ent">
+%BOOK_ENTITIES;
+
]>
<glossary>
<glossterm><acronym>ALSA</acronym></glossterm>
<glossdef>
<para>
- Abbreviation for Advanced Linux Sound Architecture. ALSA provides
+ Acronym of the Advanced Linux Sound Architecture. ALSA provides
audio and MIDI functionality to the Linux operating system.
</para>
<para>
</para>
</glossdef>
</glossentry>
+
+ <glossentry id="gt-dsp">
+ <glossterm><acronym>DSP</acronym></glossterm>
+ <glossdef>
+ <para>
+ Acronym of Digital Signal Processing, a very general term for processing
+ of any digital signal by digital means. In &ARDOUR_NAME;'s context, it generally
+ refers to the processing peformed on audio signals by &ARDOUR_NAME; and by plugins.
+ It is often talked of in terms of DSP `load', referring to the amount of CPU power
+ that Ardour is using for its signal processing. This load increases with the
+ number of tracks and plugins that a session uses. A computer will have an upper
+ limit to the amount of DSP it can perform, depending on its CPU and RAM speed and
+ many other factors.
+ </para>
+ </glossdef>
+ </glossentry>
</glossdiv>
<glossdiv>
<glossterm><acronym>HDR</acronym></glossterm>
<glossdef>
<para>
- Short for Hard Disk Recorder. Some reasonable definition here.
+ Acronym of Hard Disk Recorder. A general term for devices which record
+ audio onto hard disk; a HDR usually means some kind of standalone recording
+ unit such as the Alesis HD-24 and similar.
</para>
</glossdef>
</glossentry>
<glossterm><acronym>JACK</acronym></glossterm>
<glossdef>
<para>
- Initialism of Jack Audio Connection Kit. Some reasonable
+ Acronym of the Jack Audio Connection Kit. Some reasonable
definition here.
</para>
<para>
<glossterm><acronym>LADSPA</acronym> </glossterm>
<glossdef>
<para>
- Abbreviation of Linux Audio Developers Simple Plugin API. Some
- reasonable definition here.
+ Acronym of Linux Audio Developers Simple Plugin API. One standard
+ for writing plugins which &ARDOUR_NAME; can use. Many LADSPA plugins
+ are available; some free and open-source and others closed-source. See, for example:
+ <ulink url="http://plugin.org.uk/"/>
+ <ulink url="http://calf.sourceforge.net/"/>
</para>
<para>
<ulink url="http://ladspa.org"/>
<glossterm><acronym>MIDI</acronym> </glossterm>
<glossdef>
<para>
- Abbreviation for Musical Instrument Digital Interface. Some
- reasonable definition here.
+ Acronym of Musical Instrument Digital Interface. A standard for communicating note
+ and other information between keyboards, computers, sound modules and many other devices.
</para>
</glossdef>
</glossentry>
<glossterm>Playlist</glossterm>
<glossdef>
<para>
- some reasonable definition here.
+ A list of <glossterm linkend="gt-region">regions</glossterm>; each
+ <glossterm id="gt-track">track</glossterm> has one or more Playlists, one of which
+ is active; this specifies the regions that will be played back by the track.
</para>
</glossdef>
</glossentry>
<glossterm>plugin</glossterm>
<glossdef>
<para>
- some reasonable definition here.
+ A piece of software that can be used inside Ardour to process audio
+ or MIDI data. Common examples are equalisers, compressors or reverb
+ processors using the <glossterm linkend="gt-ladspa">LADSPA</glossterm>,
+ <glossterm linkend="gt-lv2">LV2</glossterm> or <glossterm linkend="gt-vst">VST</glossterm>
+ standards.
</para>
</glossdef>
</glossentry>