W3C : "W3C" 列的数字表示出属性由哪一个 CSS 标准定义（CSS1 照样 CSS2）。
| 属性 | 描绘 | 值 | W3C |
|---|---|---|---|
| azimuth | Sets where the sound/voices should come from (horizontally) |
|
2 |
| cue | A shorthand property for setting the cue-before and cue-after properties in one declaration |
|
2 |
| cue-after | Specifies a sound to be played after speaking an element's content to delimit it from other |
|
2 |
| cue-before | Specifies a sound to be played before speaking an element's content to delimit it from other |
|
2 |
| elevation | Sets where the sound/voices should come from (vertically) |
|
2 |
| pause | A shorthand property for setting the pause-before and pause-after properties in one declaration |
|
2 |
| pause-after | Specifies a pause after speaking an element's content |
|
2 |
| pause-before | Specifies a pause before speaking an element's content |
|
2 |
| pitch | Specifies the speaking voice |
|
2 |
| pitch-range | Specifies the variation in the speaking voice. (Monotone voice or animated voice?) |
|
2 |
| play-during | Specifies a sound to be played while speaking an element's content |
|
2 |
| richness | Specifies the richness in the speaking voice. (Rich voice or thin voice?) |
|
2 |
| speak | Specifies whether content will render aurally |
|
2 |
| speak-header | Specifies how to handle table headers. Should the headers be spoken before every cell, or only before a cell with a different header than the previous cell |
|
2 |
| speak-numeral | Specifies how to speak numbers |
|
2 |
| speak-punctuation | Specifies how to speak punctuation characters |
|
2 |
| speech-rate | Specifies the speed of the speaking |
|
2 |
| stress | Specifies the "stress" in the speaking voice |
|
2 |
| voice-family | A prioritized list of voice family names that contain specific voices |
|
2 |
| volume | Specifies the volume of the speaking |
|
2 |
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