| Aural style sheets are provided for the blind and visually impaired communities. Page contents are read to the user. The aural style sheet "canvas" uses dimensional space to render sounds in specified sequences as page elements are displayed and selected. azimuth Usage | Enables you to position a sound. Designed for spatial audio, which requires binaural headphones or five-speaker home theater systems. | CSS2 Values | <angle> | [[left-side | far-left | left | center-left | center | center-right | right | far-right | right-side] || behind ]| leftwards | rightwards | inherit | Initial | center | Applies to | All elements. | Inherited | Yes. |
cue Usage | Shorthand property for cue-before and cue-after. Plays a sound before or after an element is rendered. | CSS2 Values | cue-before | cue-after | inherit | Initial | Not defined (shorthand property). | Applies to | All elements. | Inherited | No. |
cue-after, cue-before Usage | Plays a sound after (cue-after) or before (cue-before) an element is rendered. | CSS2 Values | <uri> | none | inherit Initial none | Applies to | All elements. | Inherited | No. |
elevation Usage | Enables you to position the angle of a sound. For use with spatial audio (binaural headphones or five-speaker home theater setups required). | CSS2 Values | <angle> | below | level | above | higher | lower | inherit | Initial | level | Applies to | All elements. | Inherited | Yes. |
pause Usage | A shorthand property for setting pause-before and pause-after in the same location in the style sheet. | CSS2 Values | <time> | <percentage> | inherit Initial Depends on browser. | Applies to | All elements. | Inherited | No. |
pause-after, pause-before Usage | Specifies a pause to be observed before or after speaking an element's content. | CSS2 Values | <time> | <percentage> | inherit | Initial | Depends on browser. | Applies to | All elements. | Inherited | No. |
pitch Usage | Specifies the average pitch (frequency) of the speaking voice. | CSS2 Values | <frequency> | x-low | low | medium | high | x-high | inherit | Initial | medium | Applies to | All elements. | Inherited | Yes. | Notes | Average pitch for the standard male voice is around 120Hz; for the female voice, it is around 210Hz. |
pitch-range Usage | Specifies variation in average pitch. Used to vary inflection and add animation to the voice. | CSS2 Values | <number> | inherit | Initial | 50 | Applies to | All elements. | Inherited | Yes. |
play-during Usage | Specifies a sound to be played as a background while an element's content is spoken. | CSS2 Values | <uri> | mix? | repeat? | auto | none | inherit | Initial | auto | Applies to | All elements. | Inherited | No. |
richness Usage | Specifies the richness, or brightness, of the speaking voice. | CSS2 Values | <number> | inherit | Initial | 50 | Applies to | All elements. | Inherited | Yes. |
speak Usage | Specifies whether text will be rendered aurally, and in what manner. | CSS2 Values | normal | none | spell-out | inherit | Initial | normal | Applies to | All elements. | Inherited | Yes. |
speak-header Usage | Specifies whether table headers are spoken before every cell, or only before a cell when it is associated with a different header than a previous cell. | CSS2 Values | once | always | inherit | Initial | once | Applies to | Elements that have header information. | Inherited | Yes. |
speak-numeral Usage | Speaks numbers as individual digits (100 is spoken as "one zero zero") or as a continuous full number (100 is spoken as "one hundred"). | CSS2 Values | digits | continuous | inherit | Initial | continuous | Applies to | All elements. | Inherited | Yes. |
speak-punctuation Usage | Speaks punctuation literally (period, comma, and so on) or naturally as various pauses. | CSS2 Values | code | none | inherit Initial none | Applies to | All elements. | Inherited | Yes. |
speech-rate Usage | Specifies the speaking rate of the voice. | CSS2 Values | <number> | x-slow | slow | medium | fast | x-fast | faster | slower | inherit | Initial | medium | Applies to | All elements. | Inherited | Yes. |
stress Usage | Specifies the height of local peaks in the intonation of a voice. Controls the amount of inflection within stress markers. | CSS2 Values | <number> | inherit | Initial | 50 | Applies to | All elements. | Inherited | Yes. | Notes | A companion to the pitch-range property. |
voice-family Usage | Specifies a comma-separated list of voice family names. | CSS2 Values | <specific-voice> | <generic-voice> | inherit | Initial | Depends on browser. | Applies to | All elements. | Inherited | Yes. |
volume Usage | Specifies the median volume of a waveform. Ranges from 0 (minimum audible volume level) to 100 (maximum comfortable level). | CSS2 Values | <number> | <percentage> | silent | x-soft | soft | medium | loud | x-loud | inherit | Initial | medium | Applies to | All elements. | Inherited | Yes. | Notes | silent renders no sound at all. x-soft = 0, soft = 25, medium = 50, loud = 75, and x-loud = 100. |
|