"prosody" Element

Description

Designates the prosodic attributes (pitch, speed, volume) of the text surrounded with tags.

Syntax

<prosody
  pitch = "x-low" | "low" | "medium" | "high" | "x-high" | "default" | relative change (unit: Hz)
  contour = (X1%,pitch1)(X2%,pitch2)...(Xn%,pitchn)
  range = "x-low" | "low" | "medium" | "high" | "x-high" | "default" | relative change (unit: Hz)
  rate = "x-slow" | "slow" | "medium" | "fast" | "x-fast" | "default" | relative change
  duration = time interval (unit: s | ms)
  volume = "silent" | "x-soft" | "soft" | "medium" | "loud" | "x-loud" | "default" | relative change>
  child elements
</prosody>

Attributes

AttributeDescription
pitchPitch of the sound. Optional field.
contourContour of the sound pitch. Optional field.
rangeRange of the sound. Optional field.
rateSpeaking rate. Optional field.
durationDuration of the time it takes for the text to play. Optional field.
volumeVolume. Optional field.

Parent

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

Children

<audio>, <break>, <emphasis>, <mark>, <p>, <phoneme>, <prosody>, <say-as>, <sub>, <s>, <voice>, #TEXT, #CDATA-SECTION

Limitations/Restrictions

The contour, range, and duration attributes are not supported and are disregarded.

Prosody Attribute Values

Pitch:

  • Absolute: "x-high", "high", "medium", "low", "x-low", "default"
  • Relative: -99% to +99%

Rate:

  • Absolute: "x-fast", "fast", "medium", "slow", "x-slow", "default", or 0.5–4.0 (default: 1.0)
  • Relative: -99% to +99%

Volume:

  • Absolute: "silent", "x-soft", "soft", "medium", "loud", "x-loud", "default", or 0.0–100 (default: 50)
  • Relative: -99 to +99 or -99% to +99% (+50 and +50% have the same meaning)
  • Any value below 0 is set to 0, and any value above 100 is set to 100.

Example

<?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">

  <prosody pitch="high" rate="+50%">Hello, World!</prosody>
</speak>
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