<speak>

Top-level element required in a standalone SSML document.

Syntax

Attributes

Attribute	Data Type	Required?	Default	Description
version	CDATA	yes	NA	VoiceXML version.
xml:base	URI	no	NA	Base URI, used to resolve relative URIs in the document.
xml:lang	CDATA	no	NA	Language variant of the document.
xmlns	CDATA	no	NA	Designated namespace for VoiceXML.
xmlns:xsi	CDATA	no	NA	Used with the xsi:schemalocation attribute to indicate the location of the schema for the VoiceXML namespace.
xsi:schemalocation	CDATA	no	NA	Used with the xmlns:xsi attribute to indicate the location of the schema for the VoiceXML namespace.

Details

In-line SSML fragments are permitted in VoiceXML 2.0 documents. In this case, the <prompt> element is used in place of the <speak> element, allowing the same SSML child elements and attributes, except xmlns, xmlns:xsi, and xsi:schemaLocation.

The <speak> element describes how the enclosed text should be spoken. Whether or not a certain element has an effect depends on the capabilities of the TTS engine in use. In some cases, only certain attributes of an element have an effect, and even then, the level of control may not be as high as described in the specification.

For information about the elements and attributes supported by the current set of TTS engines, see SSML Support.

Parents

None.

Children

Example

<?xml version="1.0"?>
<vxml version="2.1" xmlns="http://www.w3.org/2001/vxml">
    <var name="num_messages" expr="3"/>
    <form>
        <block>
            <media type="application/ssml+xml">
                <speak version="1.0" xml:lang="en-GB">
                    Welcome to your Video Mail account!
                    You have <value expr="num_messages"/> messages.
                </speak>
            </media>
        </block>
    </form>
</vxml>