<sub>

The sub element indicates that the text in the alias attribute value replaces the contained text for pronunciation.

<?xml version="1.0"?>
<speak version="1.0" xmlns="http://www.w3.org/2001/10/synthesis"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://www.w3.org/2001/10/synthesis
                   http://www.w3.org/TR/speech-synthesis/synthesis.xsd"
         xml:lang="en-US">

 <sub alias="World Wide Web Consortium">W3C</sub>
</speak>

Attributes

alias

The string to be spoken instead of the enclosed string.

Children

none

Parents

<audio>, <emphasis>, <p>, <prosody>, <s>, <speak>, and <voice>.

Source: Speech Synthesis Markup Language (SSML) Version 1.0