Note
Please see Azure Cognitive Services for Speech documentation for the latest supported speech solutions.
XML Header (Microsoft.Speech)
Specifies the XML version number, and optionally the character encodings, as part of a grammar document's XML declaration on the first line of the document. This header must appear on the first line of all XML documents; therefore, all XML Grammar documents must have the XML header at the top. It is an accepted convention to use the .grxml file extension for XML-based grammar documents that conform to the Speech Recognition Grammar Specification Version 1.0 specification.
Example
The following examples demonstrate XML headers with and without the character encoding declaration.
<!-- With character encoding. -->
<?xml encoding="ISO-8859-1"?>
<grammar version="1.0" xmlns="http://www.w3.org/2001/06/grammar"
xml:lang="en-US" tag-format="semantics/1.0" ...>
...
</grammar>
<!-- Without character encoding. -->
<?xml?>
<grammar version="1.0" xmlns="http://www.w3.org/2001/06/grammar"
xml:lang="en-US" tag-format="semantics/1.0" ...>
...
</grammar>