XSL-FO elevation Property


Definition and Usage

The elevation property is used only in Aural Stylesheets.

The aural rendering of a document combines sounds and voices to go through the content of a document. Aural presentation occurs often by converting the document to plain text and then feeding this to a screen reader.

Situations and markets for listening to information could be:

  • for blind people
  • in the car
  • help users learning to read

Azimuth and elevation are important properties for aural presentation. These properties are used to keep several voices apart. In real life, all the people do not stand in the same spot in a room.

The elevation property specifies if the sound should come from above, below or in level with the listener.


  • Inherited: yes
  • Percentages: N/A
  • Media: aural

Property Values

Value Description
angle A fixed value within the range -90deg to 90deg.
  • 0deg means in level with the listener
  • 90deg means above
  • -90deg means below
below -90deg
level Default. 0deg
above 90deg
higher Current elevation + 10deg
lower Currents elevation - 10deg



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