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-op-voice-rate property | -xv-voice-rate property

Browser support:
-op-voice-rate:
-xv-voice-rate:
Specifies the number of spoken words per minute.
Same as the voice-pitch-range property in the CSS3 declaration.
The -op-voice-rate and -xv-voice-rate properties are equivalent in Opera.
JavaScript page for this property: opVoiceRate | XvVoiceRate. You can find other example(s) there.

Possible values:

 One of the following values: 
fast
Fast. For instance 300 words per minute in English.
inherit
Takes the value of this property from the computed style of the parent element.
medium
Normal speech rate for the language. For instance 180 - 200 words per minute in English.
slow
Slow. For instance 120 words per minute in English.
speaking rate (positive integer)
Positive integer, number of spoken words per minute.
x-fast
Very fast. For instance 500 words per minute in English.
x-slow
Very slow. For instance 80 words per minute in English.
Default: medium.

Example HTML code 1:

This example illustrates the use of the -xv-voice-rate property:
<head>
    <style>
        .example {
            -xv-voice-rate: fast;
        }
    </style>
</head>
<body>
    <p class="example">300 words per minute in English.</p>
    Select the text in the document, right click and select speak
</body>
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