CSS 听觉参考

听觉样式表

听觉样式表结合使用语音合成和声音效果来使用户聆听信息，而不是阅读信息。

可以使用听觉演示：

由盲人
帮助用户学习阅读
帮助有阅读问题的用户
用于家庭娱乐
在车里
由阅读障碍社区提供

听觉演示将文档转换为纯文本，并将其提供给屏幕阅读器（读取屏幕上所有字符的程序）。

Aural 样式表的示例：

h1, h2, h3, h4 {
voice-family: male;
richness: 80;
cue-before: url("beep.au")
}

上面的示例将使语音合成器播放声音，然后以非常丰富的男声说出标题。

CSS 听觉参考

"CSS" 列指示定义该属性的 CSS 版本（CSS1 或 CSS2）。

Property	Description	Values	CSS
azimuth	Sets where the sound should come from	angle left-side far-left left center-left center center-right right far-right right-side behind leftwards rightwards	2
cue	Sets the cue properties in one declaration	cue-before cue-after	2
cue-after	Specifies a sound to be played after speaking an element's content	none url	2
cue-before	Specifies a sound to be played before speaking an element's content	none url	2
elevation	Sets where the sound should come from	angle below level above higher lower	2
pause	Sets the pause properties in one declaration	pause-before pause-after	2
pause-after	Specifies a pause after speaking an element's content	time %	2
pause-before	Specifies a pause before speaking an element's content	time %	2
pitch	Specifies the speaking voice	frequency x-low low medium high x-high	2
pitch-range	Specifies the variation in the speaking voice. (Monotone voice or animated voice?)	number	2
play-during	Specifies a sound to be played while speaking an element's content	auto none url mix repeat	2
richness	Specifies the richness of the speaking voice. (Rich voice or thin voice?)	number	2
speak	Specifies whether content will render aurally	normal none spell-out	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	always once	2
speak-numeral	Specifies how to speak numbers	digits continuous	2
speak-punctuation	Specifies how to speak punctuation characters	none code	2
speech-rate	Specifies the speed of the speaking	number x-slow slow medium fast x-fast faster slower	2
stress	Specifies the "stress" in the speaking voice	number	2
voice-family	Specifies the voice family of the speaking	specific-voice generic-voice	2
volume	Specifies the volume of the speaking	number % silent x-soft soft medium loud x-loud	2