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142 lines
7.3 KiB
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<HTML>
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<TITLE>The Synthesis ToolKit in C++ (STK)</TITLE>
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<img src="princeton.gif"> <img src="ccrma.gif"><P>
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<a class="qindex" href="index.html">Home</a> <a class="qindex" href="information.html">Information</a> <a class="qindex" href="classes.html">Classes</a> <a class="qindex" href="download.html">Download</a> <a class="qindex" href="usage.html">Usage</a> <a class="qindex" href="maillist.html">Mail List</a> <a class="qindex" href="system.html">Requirements</a> <a class="qindex" href="tutorial.html">Tutorial</a></CENTER>
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<!-- Generated by Doxygen 1.2.8.1 -->
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<h1>Delay Class Reference</h1>STK non-interpolating delay line class.
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<a href="#_details">More...</a>
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<p>
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<code>#include <<a class="el" href="Delay_8h-source.html">Delay.h</a>></code>
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<p>
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<p>Inheritance diagram for Delay::
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<p><center><img src="classDelay.gif" usemap="#Delay_map" border="0"></center>
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<map name="Delay_map">
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<area href="classFilter.html" alt="Filter" shape="rect" coords="32,56,86,80">
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<area href="classStk.html" alt="Stk" shape="rect" coords="32,0,86,24">
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<area href="classDelayA.html" alt="DelayA" shape="rect" coords="0,168,54,192">
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<area href="classDelayL.html" alt="DelayL" shape="rect" coords="64,168,118,192">
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</map>
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<a href="classDelay-members.html">List of all members.</a><table border=0 cellpadding=0 cellspacing=0>
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<tr><td colspan=2><br><h2>Public Methods</h2></td></tr>
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<tr><td nowrap align=right valign=top><a name="a0" doxytag="Delay::Delay"></a>
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</td><td valign=bottom><a class="el" href="classDelay.html#a0">Delay</a> ()</td></tr>
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<tr><td> </td><td><font size=-1><em>Default constructor creates a delay-line with maximum length of 4095 samples and zero delay.</em></font><br><br></td></tr>
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<tr><td nowrap align=right valign=top><a name="a1" doxytag="Delay::Delay"></a>
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</td><td valign=bottom><a class="el" href="classDelay.html#a1">Delay</a> (long theDelay, long maxDelay)</td></tr>
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<tr><td> </td><td><font size=-1><em>Overloaded constructor which specifies the current and maximum delay-line lengths.</em></font><br><br></td></tr>
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<tr><td nowrap align=right valign=top><a name="a2" doxytag="Delay::~Delay"></a>
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virtual </td><td valign=bottom><a class="el" href="classDelay.html#a2">~Delay</a> ()</td></tr>
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<tr><td> </td><td><font size=-1><em>Class destructor.</em></font><br><br></td></tr>
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<tr><td nowrap align=right valign=top><a name="a3" doxytag="Delay::clear"></a>
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void </td><td valign=bottom><a class="el" href="classDelay.html#a3">clear</a> ()</td></tr>
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<tr><td> </td><td><font size=-1><em>Clears the internal state of the delay line.</em></font><br><br></td></tr>
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<tr><td nowrap align=right valign=top>void </td><td valign=bottom><a class="el" href="classDelay.html#a4">setDelay</a> (long theDelay)</td></tr>
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<tr><td> </td><td><font size=-1><em>Set the delay-line length.</em> <a href="#a4">More...</a><em></em></font><br><br></td></tr>
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<tr><td nowrap align=right valign=top><a name="a5" doxytag="Delay::getDelay"></a>
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long </td><td valign=bottom><a class="el" href="classDelay.html#a5">getDelay</a> (void) const</td></tr>
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<tr><td> </td><td><font size=-1><em>Return the current delay-line length.</em></font><br><br></td></tr>
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<tr><td nowrap align=right valign=top><a name="a6" doxytag="Delay::energy"></a>
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MY_FLOAT </td><td valign=bottom><a class="el" href="classDelay.html#a6">energy</a> (void) const</td></tr>
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<tr><td> </td><td><font size=-1><em>Calculate and return the signal energy in the delay-line.</em></font><br><br></td></tr>
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<tr><td nowrap align=right valign=top>MY_FLOAT </td><td valign=bottom><a class="el" href="classDelay.html#a7">contentsAt</a> (long tapDelay) const</td></tr>
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<tr><td> </td><td><font size=-1><em>Return the value at <em>tapDelay</em> samples from the delay-line input.</em> <a href="#a7">More...</a><em></em></font><br><br></td></tr>
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<tr><td nowrap align=right valign=top><a name="a8" doxytag="Delay::lastOut"></a>
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MY_FLOAT </td><td valign=bottom><a class="el" href="classDelay.html#a8">lastOut</a> (void) const</td></tr>
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<tr><td> </td><td><font size=-1><em>Return the last computed output value.</em></font><br><br></td></tr>
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<tr><td nowrap align=right valign=top><a name="a9" doxytag="Delay::tick"></a>
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virtual MY_FLOAT </td><td valign=bottom><a class="el" href="classDelay.html#a9">tick</a> (MY_FLOAT sample)</td></tr>
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<tr><td> </td><td><font size=-1><em>Input one sample to the delay-line and return one output.</em></font><br><br></td></tr>
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<tr><td nowrap align=right valign=top><a name="a10" doxytag="Delay::tick"></a>
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virtual MY_FLOAT* </td><td valign=bottom><a class="el" href="classDelay.html#a10">tick</a> (MY_FLOAT *vector, unsigned int vectorSize)</td></tr>
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<tr><td> </td><td><font size=-1><em>Input <em>vectorSize</em> samples to the delay-line and return an equal number of outputs in <em>vector</em>.</em></font><br><br></td></tr>
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</table>
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<hr><a name="_details"></a><h2>Detailed Description</h2>
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STK non-interpolating delay line class.
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<p>
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This protected <a class="el" href="classFilter.html">Filter</a> subclass implements a non-interpolating digital delay-line. A fixed maximum length of 4095 and a delay of zero is set using the default constructor. Alternatively, the delay and maximum length can be set during instantiation with an overloaded constructor.
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<p>
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A non-interpolating delay line is typically used in fixed delay-length applications, such as for reverberation.
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<p>
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by Perry R. Cook and Gary P. Scavone, 1995 - 2002.
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<p>
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<hr><h2>Member Function Documentation</h2>
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<a name="a4" doxytag="Delay::setDelay"></a><p>
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<table width="100%" cellpadding="2" cellspacing="0" border="0">
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<tr>
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<td class="md">
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<table cellpadding="0" cellspacing="0" border="0">
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<tr>
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<td nowrap valign="top"><b>
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void Delay::setDelay (
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</b></td>
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<td valign="bottom"><b>
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long <em>theDelay</em> )
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</b></td>
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</tr>
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</table>
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</td>
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</tr>
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</table>
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<table cellspacing=5 cellpadding=0 border=0>
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<tr>
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<td>
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</td>
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<td>
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<p>
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Set the delay-line length.
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<p>
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The valid range for <em>theDelay</em> is from 0 to the maximum delay-line length. </td>
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</tr>
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</table>
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<a name="a7" doxytag="Delay::contentsAt"></a><p>
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<table width="100%" cellpadding="2" cellspacing="0" border="0">
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<tr>
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<td class="md">
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<table cellpadding="0" cellspacing="0" border="0">
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<tr>
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<td nowrap valign="top"><b>
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MY_FLOAT Delay::contentsAt (
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</b></td>
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<td valign="bottom"><b>
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long <em>tapDelay</em> ) const
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</b></td>
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</tr>
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</table>
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</td>
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</tr>
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</table>
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<table cellspacing=5 cellpadding=0 border=0>
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<tr>
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<td>
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</td>
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<td>
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<p>
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Return the value at <em>tapDelay</em> samples from the delay-line input.
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<p>
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The valid range for <em>tapDelay</em> is 1 to the delay-line length. </td>
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</tr>
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</table>
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<hr>The documentation for this class was generated from the following file:<ul>
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<li><a class="el" href="Delay_8h-source.html">Delay.h</a></ul>
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<HR>
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<table>
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<tr><td><A HREF="http://www-ccrma.stanford.edu/software/stk/"><I>The Synthesis ToolKit in C++ (STK)</I></A></td></tr>
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<tr><td>©1995-2002 Perry R. Cook and Gary P. Scavone. All Rights Reserved.</td></tr>
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</table>
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