2022-04-12 22:02:59 -03:00
|
|
|
<!DOCTYPE html>
|
2022-04-12 21:54:18 -03:00
|
|
|
|
|
|
|
|
<!--Converted with LaTeX2HTML 2002-2-1 (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>
|
2022-04-12 22:02:59 -03:00
|
|
|
|
|
|
|
|
<meta name="viewport" content="width=device-width, initial-scale=1.0">
|
|
|
|
|
|
|
|
|
|
|
2022-04-12 21:54:18 -03:00
|
|
|
<TITLE>Control streams in block diagrams</TITLE>
|
|
|
|
|
<META NAME="description" CONTENT="Control streams in block diagrams">
|
|
|
|
|
<META NAME="keywords" CONTENT="book">
|
|
|
|
|
<META NAME="resource-type" CONTENT="document">
|
|
|
|
|
<META NAME="distribution" CONTENT="global">
|
|
|
|
|
|
|
|
|
|
<META NAME="Generator" CONTENT="LaTeX2HTML v2002-2-1">
|
|
|
|
|
<META HTTP-EQUIV="Content-Style-Type" CONTENT="text/css">
|
|
|
|
|
|
|
|
|
|
<LINK REL="STYLESHEET" HREF="book.css">
|
|
|
|
|
|
|
|
|
|
<LINK REL="next" HREF="node46.html">
|
|
|
|
|
<LINK REL="previous" HREF="node44.html">
|
|
|
|
|
<LINK REL="up" HREF="node40.html">
|
|
|
|
|
<LINK REL="next" HREF="node46.html">
|
|
|
|
|
</HEAD>
|
|
|
|
|
|
|
|
|
|
<BODY >
|
|
|
|
|
<!--Navigation Panel-->
|
2022-04-12 23:32:40 -03:00
|
|
|
<A ID="tex2html1217"
|
2022-04-12 21:54:18 -03:00
|
|
|
HREF="node46.html">
|
|
|
|
|
<IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next"
|
2022-04-12 22:02:59 -03:00
|
|
|
SRC="next.png"></A>
|
2022-04-12 23:32:40 -03:00
|
|
|
<A ID="tex2html1211"
|
2022-04-12 21:54:18 -03:00
|
|
|
HREF="node40.html">
|
|
|
|
|
<IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up"
|
2022-04-12 22:02:59 -03:00
|
|
|
SRC="up.png"></A>
|
2022-04-12 23:32:40 -03:00
|
|
|
<A ID="tex2html1205"
|
2022-04-12 21:54:18 -03:00
|
|
|
HREF="node44.html">
|
|
|
|
|
<IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous"
|
2022-04-12 22:02:59 -03:00
|
|
|
SRC="prev.png"></A>
|
2022-04-12 23:32:40 -03:00
|
|
|
<A ID="tex2html1213"
|
2022-04-12 21:54:18 -03:00
|
|
|
HREF="node4.html">
|
|
|
|
|
<IMG WIDTH="65" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="contents"
|
2022-04-12 22:02:59 -03:00
|
|
|
SRC="contents.png"></A>
|
2022-04-12 23:32:40 -03:00
|
|
|
<A ID="tex2html1215"
|
2022-04-12 21:54:18 -03:00
|
|
|
HREF="node201.html">
|
|
|
|
|
<IMG WIDTH="43" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="index"
|
2022-04-12 22:02:59 -03:00
|
|
|
SRC="index.png"></A>
|
2022-04-12 21:54:18 -03:00
|
|
|
<BR>
|
2022-04-12 23:32:40 -03:00
|
|
|
<B> Next:</B> <A ID="tex2html1218"
|
2022-04-12 21:54:18 -03:00
|
|
|
HREF="node46.html">Event detection</A>
|
2022-04-12 23:32:40 -03:00
|
|
|
<B> Up:</B> <A ID="tex2html1212"
|
2022-04-12 21:54:18 -03:00
|
|
|
HREF="node40.html">Audio and control computations</A>
|
2022-04-12 23:32:40 -03:00
|
|
|
<B> Previous:</B> <A ID="tex2html1206"
|
2022-04-12 21:54:18 -03:00
|
|
|
HREF="node44.html">Converting from audio signals</A>
|
2022-04-12 23:32:40 -03:00
|
|
|
<B> <A ID="tex2html1214"
|
2022-04-12 21:54:18 -03:00
|
|
|
HREF="node4.html">Contents</A></B>
|
2022-04-12 23:32:40 -03:00
|
|
|
<B> <A ID="tex2html1216"
|
2022-04-12 21:54:18 -03:00
|
|
|
HREF="node201.html">Index</A></B>
|
|
|
|
|
<BR>
|
|
|
|
|
<BR>
|
|
|
|
|
<!--End of Navigation Panel-->
|
|
|
|
|
|
2022-04-12 23:32:40 -03:00
|
|
|
<H1><A ID="SECTION00750000000000000000">
|
2022-04-12 21:54:18 -03:00
|
|
|
Control streams in block diagrams</A>
|
|
|
|
|
</H1>
|
|
|
|
|
|
|
|
|
|
<P>
|
|
|
|
|
|
2022-04-12 23:32:40 -03:00
|
|
|
<DIV ALIGN="CENTER"><A ID="fig03.06"></A><A ID="3627"></A>
|
2022-04-12 21:54:18 -03:00
|
|
|
<TABLE>
|
|
|
|
|
<CAPTION ALIGN="BOTTOM"><STRONG>Figure 3.6:</STRONG>
|
|
|
|
|
Conversion between control and audio: (a) control to signal; (b)
|
|
|
|
|
signal to control by snapshots.</CAPTION>
|
|
|
|
|
<TR><TD><IMG
|
|
|
|
|
WIDTH="346" HEIGHT="160" BORDER="0"
|
|
|
|
|
SRC="img330.png"
|
|
|
|
|
ALT="\begin{figure}\psfig{file=figs/fig03.06.ps}\end{figure}"></TD></TR>
|
|
|
|
|
</TABLE>
|
|
|
|
|
</DIV>
|
|
|
|
|
|
|
|
|
|
<P>
|
|
|
|
|
Figure <A HREF="#fig03.06">3.6</A> shows how control streams are expressed in block diagrams,
|
|
|
|
|
using control-to-signal and signal-to-control conversion as examples. Control
|
|
|
|
|
streams are represented using dots (as opposed to audio signals which appear
|
|
|
|
|
as solid arrows).
|
|
|
|
|
|
|
|
|
|
<P>
|
|
|
|
|
The <I>signal</I> block converts from a numeric control stream to an audio
|
|
|
|
|
signal. The exact type of conversion isn't specified at this level of
|
|
|
|
|
detail; in the Pd examples the choice of conversion operator
|
|
|
|
|
will determine this.
|
|
|
|
|
|
|
|
|
|
<P>
|
|
|
|
|
The <I>snapshot</I> block converts from audio signals back to numeric
|
|
|
|
|
control streams. In addition to the audio signal, a separate, control input
|
|
|
|
|
is needed to specify the time sequence at which the audio signal is sampled.
|
|
|
|
|
|
|
|
|
|
<P>
|
|
|
|
|
<BR><HR>
|
|
|
|
|
<ADDRESS>
|
|
|
|
|
Miller Puckette
|
|
|
|
|
2006-12-30
|
|
|
|
|
</ADDRESS>
|
|
|
|
|
</BODY>
|
|
|
|
|
</HTML>
|
