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253 lines
10 KiB
253 lines
10 KiB
<?xml version="1.0" encoding="UTF-8"?>
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<!-- ***********************************************************************
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Stylesheet for transforming XHTML into SSML markup.
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============
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Copyright : (C) 2005 by Gary Cramblitt
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============
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Original author: Gary Cramblitt <garycramblitt@comcast.net>
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***************************************************************************
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***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; version 2 of the License. *
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* *
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*************************************************************************** -->
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<!-- ***********************************************************************
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The rendering is roughly based on the stylesheet from Appendix A of the
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CSS2 specification, http://www.w3.org/TR/REC-CSS2/sample.html
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@media speech {
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H1, H2, H3,
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H4, H5, H6 { voice-family: paul, male; stress: 20; richness: 90 }
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H1 { pitch: x-low; pitch-range: 90 }
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H2 { pitch: x-low; pitch-range: 80 }
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H3 { pitch: low; pitch-range: 70 }
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H4 { pitch: medium; pitch-range: 60 }
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H5 { pitch: medium; pitch-range: 50 }
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H6 { pitch: medium; pitch-range: 40 }
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LI, DT, DD { pitch: medium; richness: 60 }
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DT { stress: 80 }
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PRE, CODE, TT { pitch: medium; pitch-range: 0; stress: 0; richness: 80 }
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EM { pitch: medium; pitch-range: 60; stress: 60; richness: 50 }
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STRONG { pitch: medium; pitch-range: 60; stress: 90; richness: 90 }
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DFN { pitch: high; pitch-range: 60; stress: 60 }
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S, STRIKE { richness: 0 }
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I { pitch: medium; pitch-range: 60; stress: 60; richness: 50 }
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B { pitch: medium; pitch-range: 60; stress: 90; richness: 90 }
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U { richness: 0 }
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A:link { voice-family: harry, male }
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A:visited { voice-family: betty, female }
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A:active { voice-family: betty, female; pitch-range: 80; pitch: x-high }
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}
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As SSML does not seem to offer an equivalent for "stress" and "richness".
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They are mapped to rate and volume respectively.
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H1 { male; pitch: x-low; range: x-high; rate: slow; volume: x-loud}
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H2 { male; pitch: x-low; range: high; rate: slow; volume: x-loud }
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H3 { male; pitch: low; range: high; rate: slow; volume: x-loud }
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H4 { male; pitch: medium; range: medium; rate: slow; volume: x-loud }
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H5 { male; pitch: medium; range: low; rate: slow; volume: x-loud }
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H6 { male; pitch: medium; range: x-low; rate: slow; volume: x-loud }
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LI, DD { pitch: medium; }
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DT { pitch: medium; rate: x-fast }
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PRE, CODE, TT { pitch: medium; range: x-low; rate: slow; volume: loud }
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EM { pitch: medium; range: medium; rate: medium; volume: loud }
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STRONG { pitch: medium; range: medium; rate: x-fast; volume: x-loud }
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DFN { pitch: high; range: medium; rate: medium }
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S, STRIKE { volume: x-soft }
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I { pitch: high; range: medium; rate: fast; volume: medium }
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B { pitch: high; range: medium; rate: x-fast; volume: x-loud }
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U { volume: medium }
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A { female }
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*********************************************************************** -->
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<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
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<xsl:output method="xml" indent="no"/>
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<!-- root -->
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<xsl:template match="/">
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<xsl:apply-templates/>
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</xsl:template>
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<!-- html -->
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<!-- local-name() must be used in order to ignore namespaces. -->
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<xsl:template match="*[local-name()='html' or local-name()='HTML']">
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<xsl:apply-templates/>
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</xsl:template>
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<!-- Ignore header, speak the body of xhtml document. -->
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<xsl:template match="*[local-name()='head' or local-name()='HEAD']"/>
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<xsl:template match="*[local-name()='body' or local-name()='BODY']">
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<xsl:element name="speak">
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<xsl:copy-of select="/html/@lang"/>
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<xsl:copy-of select="/HTML/@lang"/>
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<xsl:apply-templates/>
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</xsl:element>
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</xsl:template>
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<!-- Paragraph -->
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<xsl:template match="*[local-name()='p' or local-name()='P']">
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<p><xsl:apply-templates/></p>
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</xsl:template>
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<!-- H1 { pitch: x-low; range: x-high; rate: slow; volume: x-loud } -->
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<xsl:template match="*[local-name()='h1' or local-name()='H1']">
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<voice gender="male"><prosody pitch="x-low" range="x-high" rate="slow" volume="x-loud">
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<xsl:apply-templates/>
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</prosody></voice>
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</xsl:template>
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<!-- H2 { male; pitch: x-low; range: high; rate: slow; volume: x-loud } -->
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<xsl:template match="*[local-name()='h2' or local-name()='H2']">
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<voice gender="male"><prosody pitch="x-low" range="high" rate="slow" volume="x-loud">
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<xsl:apply-templates/>
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</prosody></voice>
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</xsl:template>
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<!-- H3 { male; pitch: low; range: high; rate: slow; volume: x-loud } -->
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<xsl:template match="*[local-name()='h3' or local-name()='H3']">
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<voice gender="male"><prosody pitch="low" range="high" rate="slow" volume="x-loud">
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<xsl:apply-templates/>
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</prosody></voice>
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</xsl:template>
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<!-- H4 { male; pitch: medium; range: medium; rate: slow; volume: x-loud } -->
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<xsl:template match="*[local-name()='h4' or local-name()='H4']">
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<voice gender="male"><prosody pitch="medium" range="medium" rate="slow" volume="x-loud">
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<xsl:apply-templates/>
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</prosody></voice>
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</xsl:template>
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<!-- H5 { male; pitch: medium; range: low; rate: slow; volume: x-loud } -->
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<xsl:template match="*[local-name()='h5' or local-name()='H5']">
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<voice gender="male"><prosody pitch="low" range="low" rate="slow" volume="x-loud">
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<xsl:apply-templates/>
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</prosody></voice>
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</xsl:template>
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<!-- H6 { male; pitch: medium; range: x-low; rate: slow; volume: x-loud } -->
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<xsl:template match="*[local-name()='h6' or local-name()='H6']">
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<voice gender="male"><prosody pitch="medium" range="x-low" rate="slow" volume="x-loud">
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<xsl:apply-templates/>
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</prosody></voice>
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</xsl:template>
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<!-- LI, DD { pitch: medium; } -->
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<xsl:template match="*[local-name()='li' or local-name()='LI']">
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<prosody pitch="medium">
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<xsl:apply-templates/>
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</prosody>
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</xsl:template>
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<xsl:template match="*[local-name()='dd' or local-name()='DD']">
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<prosody pitch="medium">
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<xsl:apply-templates/>
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</prosody>
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</xsl:template>
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<!-- DT { pitch: medium; rate: x-fast } -->
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<xsl:template match="*[local-name()='dt' or local-name()='DT']">
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<prosody pitch="medium" rate="x-fast">
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<xsl:apply-templates/>
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</prosody>
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</xsl:template>
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<!-- PRE, CODE, TT { pitch: medium; range: x-low; rate: slow; volume: loud } -->
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<xsl:template match="*[local-name()='pre' or local-name()='PRE']">
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<prosody pitch="medium" range="x-low" rate="slow" volume="loud">
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<xsl:apply-templates/>
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</prosody>
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</xsl:template>
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<xsl:template match="*[local-name()='code' or local-name()='CODE']">
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<prosody pitch="medium" range="x-low" rate="slow" volume="loud">
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<xsl:apply-templates/>
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</prosody>
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</xsl:template>
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<xsl:template match="*[local-name()='tt' or local-name()='TT']">
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<prosody pitch="medium" range="x-low" rate="slow" volume="loud">
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<xsl:apply-templates/>
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</prosody>
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</xsl:template>
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<!-- EM { pitch: medium; range: medium; rate: medium; volume: loud } -->
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<xsl:template match="*[local-name()='em' or local-name()='EM']">
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<prosody pitch="medium" range="medium" rate="medium" volume="loud">
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<xsl:apply-templates/>
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</prosody>
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</xsl:template>
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<!-- STRONG { pitch: medium; range: medium; rate: x-fast; volume: x-loud } -->
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<xsl:template match="*[local-name()='strong' or local-name()='STRONG']">
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<prosody pitch="medium" range="medium" rate="x-fast" volume="x-loud">
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<xsl:apply-templates/>
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</prosody>
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</xsl:template>
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<!-- DFN { pitch: high; range: medium; rate: medium } -->
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<xsl:template match="*[local-name()='dfn' or local-name()='DFN']">
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<prosody pitch="high" range="medium" rate="medium">
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<xsl:apply-templates/>
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</prosody>
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</xsl:template>
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<!-- S, STRIKE { volume: x-soft } -->
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<xsl:template match="*[local-name()='s' or local-name()='S']">
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<prosody volume="x-soft">
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<xsl:apply-templates/>
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</prosody>
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</xsl:template>
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<xsl:template match="*[local-name()='strike' or local-name()='STRIKE']">
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<prosody volume="x-soft">
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<xsl:apply-templates/>
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</prosody>
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</xsl:template>
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<!-- I { pitch: high; range: medium; rate: fast; volume: medium } -->
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<xsl:template match="*[local-name()='i' or local-name()='I']">
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<prosody pitch="high" range="medium" rate="fast" volume="medium">
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<xsl:apply-templates/>
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</prosody>
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</xsl:template>
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<!-- B { pitch: high; range: medium; rate: x-fast; volume: x-loud } -->
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<xsl:template match="*[local-name()='b' or local-name()='B']">
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<prosody pitch="high" range="medium" rate="x-fast" volume="x-loud">
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<xsl:apply-templates/>
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</prosody>
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</xsl:template>
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<!-- U { volume: medium } -->
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<xsl:template match="*[local-name()='u' or local-name()='U']">
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<prosody pitch="medium">
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<xsl:apply-templates/>
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</prosody>
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</xsl:template>
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<!-- A { female } -->
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<xsl:template match="*[local-name()='a' or local-name()='A']">
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<voice gender="female">
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<xsl:apply-templates/>
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</voice>
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</xsl:template>
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<!-- HREF attribute -->
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<xsl:template match="@href">
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<prosody volume="soft">Address</prosody>
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<prosody rate="x-fast">
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<xsl:value-of select="."/>
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</prosody>
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</xsl:template>
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<!-- Ignore scripts. -->
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<xsl:template match="*[local-name()='script' or local-name()='SCRIPT']"/>
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<!-- Ignore styles. -->
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<xsl:template match="*[local-name()='style' or local-name()='STYLE']"/>
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</xsl:stylesheet>
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