CSS Voice Reference
The auditory style sheet uses a combination of speech synthesis and sound effects to allow users to listen to information rather than read it.
A sound display can be used to:
- Blind people
- Help users learn to read
- Help users with reading problems
- Family entertainment
- It's in the car
Auditory rendering typically converts a document into plain text and then passes it on to a screen reader (a program that reads out all the characters on the screen).
An example of an auditory style sheet:
h1,h2,h3,h4
{
voice-family:male;
richness:80;
cue-before:url("beep.au")
}
{
voice-family:male;
richness:80;
cue-before:url("beep.au")
}
The above example uses a speech synthesizer to play a sound that begins with a male voice speaking.
CSS Voice Reference Manual
The CSS" column represents the property definition (CSS1 or CSS2) in the CSS version.
| Property | Description | Values | Css |
|---|---|---|---|
| azimuth | Set 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 | Set the cue property in a declaration |
cue-before
cue-after |
2 |
| cue-after | Specify the sound to play after the contents of an element |
none
Url |
2 |
| cue-before | Specifies the sound to play in front of the contents of an element |
none
Url |
2 |
| elevation | Set where the sound should come from |
angle
below level above higher lower |
2 |
| pause | Set the pause property in a declaration |
pause-before
pause-after |
2 |
| pause-after | After the contents of an element, specify a pause |
time
% |
2 |
| pause-before | Specify a pause before the contents of an element |
time
% |
2 |
| pitch | Specify the voice of the speech |
frequency
x-low low medium high x-high |
2 |
| pitch-range | Specify the change in the voice of the speech. ( A monotonous or dynamic sound?) ） | number | 2 |
| play-during | Specifies the sound to play when reading the contents of an element |
auto
none Url mix repeat |
2 |
| richness | Specify a rich voice to speak. ( A thick or thin sound? ） | number | 2 |
| speak | Specify whether the content will provide a way to hear |
normal
none spell-out |
2 |
| speak-header | This property sets or retrieves whether the table title sounds before all cells or ends in a cell that is not associated with it. |
always
once |
2 |
| speak-numeral | Set or retrieve how numbers are pronounced. |
digits
continuous |
2 |
| speak-punctuation | Set or retrieve how punctuation characters are pronounced |
none
code |
2 |
| speech-rate | Specify the speed of speech |
number
x-slow slow medium fast x-fast faster slower |
2 |
| stress | The voice of the speech is "accented" in the specified place | number | 2 |
| voice-family | Set or retrieve the current sound type |
specific-voice
generic-voice |
2 |
| volume | Specify the volume of the speech |
number
% silent x-soft soft medium loud x-loud |
2 |