<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>hrtfreverb</title>
<link rel="stylesheet" type="text/css" href="csound.css" />
<meta name="generator" content="DocBook XSL Stylesheets V1.76.1" />
<link rel="home" href="index.html" title="The Canonical Csound Reference Manual" />
<link rel="up" href="OpcodesTop.html" title="Orchestra Opcodes and Operators" />
<link rel="prev" href="hrtfmove2.html" title="hrtfmove2" />
<link rel="next" href="hrtfstat.html" title="hrtfstat" />
</head>
<body>
<div class="navheader">
<table width="100%" summary="Navigation header">
<tr>
<th colspan="3" align="center">hrtfreverb</th>
</tr>
<tr>
<td width="20%" align="left"><a accesskey="p" href="hrtfmove2.html">Prev</a> </td>
<th width="60%" align="center">Orchestra Opcodes and Operators</th>
<td width="20%" align="right"> <a accesskey="n" href="hrtfstat.html">Next</a></td>
</tr>
</table>
<hr />
</div>
<div class="refentry" title="hrtfreverb">
<a id="hrtfreverb"></a>
<div class="titlepage"></div>
<a id="Indexhrtfreverb" class="indexterm"></a>
<div class="refnamediv">
<h2>
<span class="refentrytitle">hrtfreverb</span>
</h2>
<p>hrtfreverb —
A binaural, dynamic FDN based diffuse-field reverberator. The opcode works independently as an efficient, flexible reverberator.
</p>
</div>
<div class="refsect1" title="Description">
<a id="idp26120272"></a>
<h2>Description</h2>
<p>
A frequency-dependent, efficient reverberant field is created based on low and high frequency desired reverb times. The opcode is designed to work with <a class="link" href="hrtfearly.html" title="hrtfearly"><em class="citetitle">hrtfearly</em></a>, ideally using its outputs as inputs. However, <a class="link" href="hrtfreverb.html" title="hrtfreverb"><em class="citetitle">hrtfreverb</em></a> can be used as a standalone tool. Stability is enforced.
</p>
<p>
It is, however, designed for use with <a class="link" href="hrtfearly.html" title="hrtfearly"><em class="citetitle">hrtfearly</em></a> to provide spatially accurate reverberation with user definable source trajectories. Accurate interaural coherence is also provided.
</p>
</div>
<div class="refsect1" title="Syntax">
<a id="idp26122872"></a>
<h2>Syntax</h2>
<pre class="synopsis">aleft, aright, idel <span class="command"><strong>hrtfreverb</strong></span> asrc, ilowrt60, ihighrt60, ifilel, ifiler [,isr, imfp, iorder]</pre>
</div>
<div class="refsect1" title="Initialization">
<a id="idp26124056"></a>
<h2>Initialization</h2>
<p>
<span class="emphasis"><em>ilowrt60</em></span> - low frequency reverb time.
</p>
<p>
<span class="emphasis"><em>ihighrt60</em></span> - high frequency reverb time.
</p>
<p>
<span class="emphasis"><em>ifilel</em></span> - left HRTF spectral data file.
</p>
<p>
<span class="emphasis"><em>ifiler</em></span> - right HRTF spectral data file.
</p>
<div class="note" title="Note" style="margin-left: 0.5in; margin-right: 0.5in;">
<table border="0" summary="Note">
<tr>
<td rowspan="2" align="center" valign="top" width="25">
<img alt="[Note]" src="images/note.png" />
</td>
<th align="left">Note</th>
</tr>
<tr>
<td align="left" valign="top">
<p>Spectral datafiles (based on the MIT HRTF database) are available in 3 different sampling rates: 44.1, 48 and 96 kHz and are labelled accordingly. Input and processing <span class="emphasis"><em>sr</em></span> should match datafile <span class="emphasis"><em>sr</em></span>. Files should be in the current directory or the SADIR (see <a class="link" href="CommandEnvironment.html" title="Csound Environment Variables"><em class="citetitle">Environment Variables</em></a>).
</p>
</td>
</tr>
</table>
</div>
<div class="note" title="Note" style="margin-left: 0.5in; margin-right: 0.5in;">
<table border="0" summary="Note">
<tr>
<td rowspan="2" align="center" valign="top" width="25">
<img alt="[Note]" src="images/note.png" />
</td>
<th align="left">Note</th>
</tr>
<tr>
<td align="left" valign="top">
<p>HRTF Data files for use with
<a class="link" href="hrtfmove.html" title="hrtfmove"><em class="citetitle">hrtfmove</em></a>,
<a class="link" href="hrtfmove2.html" title="hrtfmove2"><em class="citetitle">hrtfmove2</em></a>,
<a class="link" href="hrtfstat.html" title="hrtfstat"><em class="citetitle">hrtfstat</em></a>,
<a class="link" href="hrtfreverb.html" title="hrtfreverb"><em class="citetitle">hrtfreverb</em></a>,
<a class="link" href="hrtfreverb.html" title="hrtfreverb"><em class="citetitle">hrtfreverb</em></a>
were updated for Csound 5.15 and later (the code was updated and is more efficient). Old datafiles are now deprecated.
</p>
</td>
</tr>
</table>
</div>
<p>
<span class="emphasis"><em>isr</em></span> - optional, default 44.1kHz, legal values: 44100, 48000 and 96000.
</p>
<p>
<span class="emphasis"><em>imfp</em></span> - optional, mean free path, defaults to that of a medium room. If used with <a class="link" href="hrtfearly.html" title="hrtfearly"><em class="citetitle">hrtfearly</em></a>, the mean free path of the room can be used to calculate the appropriate delay for the later reverb. Legal range: the mean free path of the smallest room allowed by hrtfearly (0.003876) 1.
</p>
<p>
<span class="emphasis"><em>iorder</em></span> - optional, order of early reflection processing. If used with <a class="link" href="hrtfearly.html" title="hrtfearly"><em class="citetitle">hrtfearly</em></a>, the order of early reflections can be used to calculate the appropriate delay on the later reverb.
</p>
<p>
<span class="emphasis"><em>asrc</em></span> - Input/source signal.
</p>
<p>
<span class="emphasis"><em>idel</em></span> - if used with <a class="link" href="hrtfearly.html" title="hrtfearly"><em class="citetitle">hrtfearly</em></a>, the appropriate delay for the later reverb, based on the room and order of processing.
</p>
</div>
<div class="refsect1" title="Example">
<a id="idp26135296"></a>
<h2>Example</h2>
<p>
See the <a class="link" href="hrtfearly.html" title="hrtfearly"><em class="citetitle">hrtfearly</em></a> manual page for a simple example of the <a class="link" href="hrtfearly.html" title="hrtfearly"><em class="citetitle">hrtfearly</em></a> and <span class="emphasis"><em>hrtfreverb</em></span> opcodes.
</p>
</div>
<div class="refsect1" title="See Also">
<a id="idp26137136"></a>
<h2>See Also</h2>
<p>
<a class="link" href="hrtfearly.html" title="hrtfearly"><em class="citetitle">hrtfearly</em></a>
<a class="link" href="hrtfmove.html" title="hrtfmove"><em class="citetitle">hrtfmove</em></a>,
<a class="link" href="hrtfmove2.html" title="hrtfmove2"><em class="citetitle">hrtfmove2</em></a>,
<a class="link" href="hrtfstat.html" title="hrtfstat"><em class="citetitle">hrtfstat</em></a>,
<a class="link" href="hrtfer.html" title="hrtfer"><em class="citetitle">hrtfer</em></a>.
</p>
</div>
<div class="refsect1" title="Credits">
<a id="idp26140136"></a>
<h2>Credits</h2>
<p>
</p>
<table border="0" summary="Simple list" class="simplelist">
<tr>
<td>Author: Brian Carty</td>
</tr>
<tr>
<td>Maynooth</td>
</tr>
<tr>
<td>2011</td>
</tr>
</table>
<p>
</p>
</div>
</div>
<div class="navfooter">
<hr />
<table width="100%" summary="Navigation footer">
<tr>
<td width="40%" align="left"><a accesskey="p" href="hrtfmove2.html">Prev</a> </td>
<td width="20%" align="center">
<a accesskey="u" href="OpcodesTop.html">Up</a>
</td>
<td width="40%" align="right"> <a accesskey="n" href="hrtfstat.html">Next</a></td>
</tr>
<tr>
<td width="40%" align="left" valign="top">hrtfmove2 </td>
<td width="20%" align="center">
<a accesskey="h" href="index.html">Home</a>
</td>
<td width="40%" align="right" valign="top"> hrtfstat</td>
</tr>
</table>
</div>
</body>
</html>
distrib
>
Mageia
>
5
>
x86_64
>
media
>
core-release
>
by-pkgid
>
b707d9a4ee443103660a75ccb6e51334
>
files
>
1794
