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| author | Tim E. Real <termtech@rogers.com> | 2013-02-22 06:51:28 +0000 |
|---|---|---|
| committer | Tim E. Real <termtech@rogers.com> | 2013-02-22 06:51:28 +0000 |
| commit | 0f0ae515af4b242e7a3afc9a7631bf0f27f46d87 (patch) | |
| tree | 5303ea8748e1b8135de7e271bee0127753073938 /muse2/doc/html/split/documentation/node13.html | |
| parent | 48b9d2ea9961f935bacabc75a2fbd5cc141010ae (diff) | |
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| -rw-r--r-- | muse2/doc/html/split/documentation/node13.html | 222 |
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diff --git a/muse2/doc/html/split/documentation/node13.html b/muse2/doc/html/split/documentation/node13.html new file mode 100644 index 00000000..4c92aa47 --- /dev/null +++ b/muse2/doc/html/split/documentation/node13.html @@ -0,0 +1,222 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> + +<!--Converted with LaTeX2HTML 2008 (1.71) +original version by: Nikos Drakos, CBLU, University of Leeds +* revised and updated by: Marcus Hennecke, Ross Moore, Herb Swan +* with significant contributions from: + Jens Lippmann, Marek Rouchal, Martin Wilck and others --> +<HTML> +<HEAD> +<TITLE>Understanding the effects rack</TITLE> +<META NAME="description" CONTENT="Understanding the effects rack"> +<META NAME="keywords" CONTENT="documentation"> +<META NAME="resource-type" CONTENT="document"> +<META NAME="distribution" CONTENT="global"> + +<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=utf-8"> +<META NAME="Generator" CONTENT="LaTeX2HTML v2008"> +<META HTTP-EQUIV="Content-Style-Type" CONTENT="text/css"> + +<LINK REL="STYLESHEET" HREF="documentation.css"> + +<LINK REL="previous" HREF="node12.html"> +<LINK REL="up" HREF="node12.html"> +</HEAD> + +<BODY > + +<DIV CLASS="navigation"><!--Navigation Panel--> +<IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" + SRC="/usr/share/latex2html/icons/next_g.png"> +<A NAME="tex2html356" + HREF="node12.html"> +<IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" + SRC="/usr/share/latex2html/icons/up.png"></A> +<A NAME="tex2html352" + HREF="node12.html"> +<IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" + SRC="/usr/share/latex2html/icons/prev.png"></A> +<A NAME="tex2html358" + HREF="node1.html"> +<IMG WIDTH="65" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="contents" + SRC="/usr/share/latex2html/icons/contents.png"></A> +<BR> +<B> Up:</B> <A NAME="tex2html357" + HREF="node12.html">Appendix</A> +<B> Previous:</B> <A NAME="tex2html353" + HREF="node12.html">Appendix</A> + <B> <A NAME="tex2html359" + HREF="node1.html">Contents</A></B> +<BR> +<BR></DIV> +<!--End of Navigation Panel--> + +<H1><A NAME="SECTION00410000000000000000"> +Understanding the effects rack</A> +</H1> +One must carefully consider how many audio inputs and outputs a plugin +has, and how may channels the particular audio track has (1 mono or +2 stereo), and how MusE uses the plugins in the rack. + +<P> +MusE will try to internally create as many independent copies +(instances) of a plugin as necessary, to satisfy the number of channels +in the audio track. +Basically it divides the number of track channels by the number of +plugin audio inputs or outputs to determine how many copies to make. +First it examines the number of plugin audio outputs, and if there are +none, it will examine the number of audio inputs, and if there are +none, it will simply use just one plugin copy. + +<P> +For mono tracks with plugins having more than one audio input or +output, MusE uses the first input or output and ignores the rest. + +<P> +For stereo tracks: + +<P> +<TABLE CELLPADDING=3 BORDER="1"> +<TR><TD ALIGN="CENTER">plugin inputs</TD> +<TD ALIGN="CENTER">outputs</TD> +<TD ALIGN="CENTER">copies</TD> +<TD ALIGN="CENTER">track in route channels</TD> +<TD ALIGN="CENTER">track out route channels</TD> +</TR> +<TR><TD ALIGN="CENTER">0</TD> +<TD ALIGN="CENTER">0</TD> +<TD ALIGN="CENTER">1</TD> +<TD ALIGN="CENTER">0</TD> +<TD ALIGN="CENTER">0</TD> +</TR> +<TR><TD ALIGN="CENTER">0</TD> +<TD ALIGN="CENTER">1</TD> +<TD ALIGN="CENTER">2</TD> +<TD ALIGN="CENTER">0</TD> +<TD ALIGN="CENTER">2</TD> +</TR> +<TR><TD ALIGN="CENTER">0</TD> +<TD ALIGN="CENTER">>=2</TD> +<TD ALIGN="CENTER">1</TD> +<TD ALIGN="CENTER">0</TD> +<TD ALIGN="CENTER">2</TD> +</TR> +<TR><TD ALIGN="CENTER">1</TD> +<TD ALIGN="CENTER">0</TD> +<TD ALIGN="CENTER">2</TD> +<TD ALIGN="CENTER">2</TD> +<TD ALIGN="CENTER">0</TD> +</TR> +<TR><TD ALIGN="CENTER">1</TD> +<TD ALIGN="CENTER">1</TD> +<TD ALIGN="CENTER">2</TD> +<TD ALIGN="CENTER">2</TD> +<TD ALIGN="CENTER">2</TD> +</TR> +<TR><TD ALIGN="CENTER">1</TD> +<TD ALIGN="CENTER">>=2</TD> +<TD ALIGN="CENTER">1</TD> +<TD ALIGN="CENTER">1 (L only)</TD> +<TD ALIGN="CENTER">2</TD> +</TR> +<TR><TD ALIGN="CENTER">>=2</TD> +<TD ALIGN="CENTER">0</TD> +<TD ALIGN="CENTER">1</TD> +<TD ALIGN="CENTER">2</TD> +<TD ALIGN="CENTER">0</TD> +</TR> +<TR><TD ALIGN="CENTER">>=2</TD> +<TD ALIGN="CENTER">1</TD> +<TD ALIGN="CENTER">2</TD> +<TD ALIGN="CENTER">2</TD> +<TD ALIGN="CENTER">2</TD> +</TR> +<TR><TD ALIGN="CENTER">>=2</TD> +<TD ALIGN="CENTER">>=2</TD> +<TD ALIGN="CENTER">1</TD> +<TD ALIGN="CENTER">2</TD> +<TD ALIGN="CENTER">2</TD> +</TR> +</TABLE> + +<P> +Notice that on a stereo track with a plugin having one audio input and +two audio outputs, only the first track input route channel is used +(left only). + +<P> +These same rules apply to inter-plugin audio when more than one plugin +is in the rack chain. Extra audio outputs of one plugin may be ignored +by the next plugin if not used. + +<P> +Currently specialized plugins with many inputs and/or outputs are not +really useful in MusE. + +<P> +Nor are so-called 'realtime' control plugins which use audio inputs +and outputs for control signals. + +<P> +Loud noise alert! Beware of using such plugins in an audio effects +rack. + +<P> +Example: Consider a stereo Audio Input track with these effect rack + LADSPA plugins: + +<P> + +<UL> +<LI>comb_splitter Comb Splitter by Steve Harris +</LI> +<LI>tap_stereo_echo Tap Stereo Echo by Tom Szilagyi +</LI> +</UL> + +<P> +The Comb Splitter has one audio input and two audio outputs. +The Stereo Echo has two audio inputs and two audio outputs. + +<P> +The stereo Audio Input track will therefore ignore its second +input route connection. It will process the left input only, +separating it into stereo with the Comb Splitter, passing the +split stereo signal into the Stereo Echo, finally producing +stereo output available at the Audio Input track's output routes. + +<P> +One improvement would be not creating unused redundant plugin copies +between plugins in stereo tracks. +For example, for a plugin having one audio input and one audio output, +feeding a plugin having one audio input and two audio outputs, +the extra copy of the first plugin is redundant and not required, +but currently it is created anyway. + +<DIV CLASS="navigation"><HR> +<!--Navigation Panel--> +<IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" + SRC="/usr/share/latex2html/icons/next_g.png"> +<A NAME="tex2html356" + HREF="node12.html"> +<IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" + SRC="/usr/share/latex2html/icons/up.png"></A> +<A NAME="tex2html352" + HREF="node12.html"> +<IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" + SRC="/usr/share/latex2html/icons/prev.png"></A> +<A NAME="tex2html358" + HREF="node1.html"> +<IMG WIDTH="65" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="contents" + SRC="/usr/share/latex2html/icons/contents.png"></A> +<BR> +<B> Up:</B> <A NAME="tex2html357" + HREF="node12.html">Appendix</A> +<B> Previous:</B> <A NAME="tex2html353" + HREF="node12.html">Appendix</A> + <B> <A NAME="tex2html359" + HREF="node1.html">Contents</A></B> </DIV> +<!--End of Navigation Panel--> + +</BODY> +</HTML> |