CSS Aural Media

CSS Aural Media/ Style Sheets

CSS Aural media or style sheets are use to a combination of speech synthesis and a sound style features to a specific document elements to make the user listen to information instead of reading them. So, aural media is very useful for visually impaired people.

Aural media can be used:

It helps to blind or visually impaired people
It helps users learning to read and who have reading problems.
Training
Medical documentation
Home entertainment
It can be used by print-impaired communities
Industrial documentation

Aural Media Properties

Following is a list of aural media properties

Property	Explanation	Value
azimuth	This property is set where the sound should come from horizontally.	Angle left-side far-left left center-left center center-right right far-right right-side behind leftwardsrightwards
cue	It is used to set the cue properties in shorthand (one declaration).	cue-beforecue-after
cue-after	It is used to specify a sound to be played after speaking an element's content to delimit from other.	none url
cue-before	It is used to specify a sound to be played before speaking an element's content to delimit it from other.	noneurl
elevation	It is set where the sound should come from vertically.	angle below level above higherlower
pause	It is used to set the pause properties in shorthand (one declaration).	pause-beforepause-after
pause-after	It is used to observed a pause after speaking an element's content.	time %
pause-before	It is used to observed a pause before speaking an element's content.	time %
pitch	It is used to specify the pitch (a frequency) of the speaking voice.	frequency x-low low medium high x-high
pitch-range	It is used to specify the variation in average pitch. It specifies that speaking voice is animated voice or monotone voice.	number
play-during	It specifies a sound to be played as a background while an element's content is spoken.	auto none url mix repeat
richness	It is used to specifies the sound quality (richness or brightness) of the speaking voice.	number
speak	It specifies whether text will render aurally.	normal nonespell-out
speak-header	It can be used to specify how to handle table headers. It is also specified that whether the headers be spoken before every cell, or only before a cell with a different header than the previous cell.	always once
speak-numeral	It specifies to control how numerals are spoken.	digits continuous
speak-punctuation	It is used to specify how punctuation are spoken	nonecode
speech-rate	It specifies the rate of the speaking. It allowed both the speaking and relative keyword.	number x-slow slow medium fast x-fast fasterslower
stress	It is used to specify the "stress" in the speaking voice or the height of the "Local peaks".	number
voice-family	It specifies the voice family of the speaking voice and the value is comma separated.	specific-voice generic-voice
volume	It specifies the medium volume of the speaking voice .	number % silent x-soft soft medium loud x-loud

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