CSS richness

The CSS richness property is used in aural media (audio) to specify the richess of the spoken voice.

A lower value results in a smoother voice, a higher will have a brighter sound and is likely to 'cut through' background noise.

Syntax

Possible Values

In addition, all CSS properties also accept the following CSS-wide keyword values as the sole component of their property value:

initial
Represents the value specified as the property's initial value.
inherit
Represents the computed value of the property on the element's parent.
unset
This value acts as either inherit or initial, depending on whether the property is inherited or not. In other words, it sets all properties to their parent value if they are inheritable or to their initial value if not inheritable.

General Information

Initial Value
50
Applies To
All elements.
Inherited?
Yes
Media
Aural

Example Code

Official Specifications