<prosody>

New in VoiceXML 2.0. Speech Synthesis Markup Language element that changes the prosody of speech output.

Syntax

Description

Controls how the enclosed text is spoken.

Currently only rate and volume attributes are implemented. For other attributes the text is spoken normally.

Attribute Description

pitch
Not implemented. The baseline pitch for the contained text in Hertz, a relative change or values high, medium, low, default.

contour
Not implemented. Sets the actual pitch contour for the contained text.

The pitch contour is defined as a set of targets at specified intervals in the speech output. In each pair of the form (interval,target), the first value is a percentage of the period of the contained text and the second value is the value of the pitch attribute (absolute, relative, relative semitone, or descriptive values are all permitted). Interval values outside 0% to 100% are ignored. If a value is not defined for 0% or 100% then the nearest pitch target is copied.

range
Not implemented. The pitch range (variability) for the contained text in Hertz, a relative change or values high, medium, low, default.

rate
The speaking rate for the contained text, a relative change or values fast, medium, slow, default.

duration
Not implemented. The desired time to take to read the element contents.

Express time interval as an unsigned number followed by s for time in seconds; ms for time in milliseconds.

volume
The volume for the contained text as a percentage (in the range 0.0 to 100.0), a relative change or values silent, soft, medium, loud, default.

Usage

Parents Children

<audio> <bevocal:whisper> <choice> <emphasis> <enumerate> <p> <paragraph> <prompt> <prosody> <s> <sentence> <voice> <audio> <break> <emphasis> <enumerate> <mark> <p> <paragraph> <phoneme> <prosody> <s> <say-as> <sentence> <value> <voice>

See Also

•	SSML 1.0 Specification: `<prosody>`
•	Related tags: `<break>`, `<emphasis>`, `<mark>`, `<paragraph>`, `<phoneme>`, `<say-as>`, `<sentence>`, `<voice>`

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`<prosody`
`pitch="high"\|"medium"\|"low"\|"default"\|`	Not implemented
`"number_of_Hertz"\|"relativeChange"`
`contour="targets_at_intervals"`	Not implemented
`range="high"\|"medium"\|"low"\|"default"\|`	Not implemented
`"number_of_Hertz"\|"relativeValue"`
`rate="fast"\|"medium"\|"slow"\|"default"\|`
`"relativeChange"`
`duration="time_interval"`	Not implemented
`volume="silent"\|"soft"\|"medium"\|"loud"\|`
`"default"\|"percent_volume"\|"relativeChange"`
`>`
`Text`
`</prosody>`

Attribute	Description
`pitch`	Not implemented. The baseline pitch for the contained text in Hertz, a relative change or values `high`, `medium`, `low`, `default`.
`contour`	Not implemented. Sets the actual pitch contour for the contained text. The pitch contour is defined as a set of targets at specified intervals in the speech output. In each pair of the form `(interval,target)`, the first value is a percentage of the period of the contained text and the second value is the value of the `pitch` attribute (absolute, relative, relative semitone, or descriptive values are all permitted). Interval values outside 0% to 100% are ignored. If a value is not defined for 0% or 100% then the nearest pitch target is copied.
`range`	Not implemented. The pitch range (variability) for the contained text in Hertz, a relative change or values `high`, `medium`, `low`, `default`.
`rate`	The speaking rate for the contained text, a relative change or values `fast`, `medium`, `slow`, `default`.
`duration`	Not implemented. The desired time to take to read the element contents. Express time interval as an unsigned number followed by `s` for time in seconds; `ms` for time in milliseconds.
`volume`	The volume for the contained text as a percentage (in the range 0.0 to 100.0), a relative change or values `silent`, `soft`, `medium`, `loud`, `default`.

Parents	Children
`<audio>` `<bevocal:whisper>` `<choice>` `<emphasis>` `<enumerate>` `<p>` `<paragraph>` `<prompt>` `<prosody>` `<s>` `<sentence>` `<voice>`	`<audio>` `<break>` `<emphasis>` `<enumerate>` `<mark>` `<p>` `<paragraph>` `<phoneme>` `<prosody>` `<s>` `<say-as>` `<sentence>` `<value>` `<voice>`