How can the volume and voice tags be disregarded in SAPI-XML?

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In SAPI-XML, the volume and voice tags can be disregarded by simply not including them in the XML file. If they are included, they can be removed by manually editing the XML file or by using programming language to remove them during the processing of the file. For example, in Python, one could use an XML parser to extract only the necessary text content from the file while disregarding any volume or voice tags.