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Stephen Chapman

Aural Controls

The CSS2 standard also contains a number of attributes that are used by talking browsers to define how the page should be read.

voice-family can be inherit (the default), male, female, child, or a specific voice.
volume can be a number, a percentage, or one ofsilent, x-soft, soft, medium, loud, or x-loud.
stress a number indicating the amount of stress to be applied.
azimuth (where the sound comes from) can be an angle, left-side, far-left, left, center-left, center, center-right, right, far-right, right-side, behind, leftwards, or rightwards.
elevation sets the vertical origin of the sound and can be an angle, below, level, above, higher, or lower.
speak determines whether the page will be read normal, not read none, or that the voice should spell-out the content.
speak-header indicates whether a table header should always be read before each cell or just once at the start.
speak-punctuation can be code to say the punctuation or none.
speak-numeral can be digits to read each digit separately or continuous.
pitch can be a frequency, x-low, low, medium, high, or x-high.
pitch-range is a number indicating how much the voice should vary in pitch.
speech-rate can be a number or one of x-slow, slow, medium, fast, x-fast, faster, or slower.
play-during specifies a sound to play while speaking. It can be one of: auto, none, a url, mix, or repeat.
richness a number indicating how rich or thin the voice will sound.
pause two numbers or percentages indicating the amount of time to pause before and after reading the content.
pause-before a number or percentage indicating the amount of time to pause before reading the content.
pause-after a number or percentage indicating the amount of time to pause after reading the content.
cue specifies sounds to play before and after reading the content.
cue-before specifies a sound to play before reading the content.
cue-after specifies a sound to play after reading the content.

Example

p {voice-family: male; richness: 80;}

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Aural Controls

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