CSS voice-range Property

Description

The voice-range property specifies variation in average pitch. The perceived pitch of a human voice is determined by the fundamental frequency and typically has a value of 120Hz for a male voice and 210Hz for a female voice. Human languages are spoken with varying inflection and pitch; these variations convey additional meaning and emphasis. Thus, a highly animated voice, i.e., one that is heavily inflected, displays a high pitch range. This property specifies the range over which these variations occur, i.e., how much the fundamental frequency may deviate from the average pitch.

The voice-range property has been deprecated or is no longer in any CSS working groups.

Initial value: medium
Applies to: All elements
Inherited: Yes
Computed value: One of the predefined pitch keywords if only the keyword is specified by itself, otherwise an absolute frequency calculated by converting the keyword value (if any) to a fixed frequency based on the current voice-family and by applying the specified relative offset (if any)
Animatable: No
JavaScript syntax: object.style.voiceRange

Syntax

voice-range: <frequency> && absolute | [[x-low | low | medium | high | x-high] || [<frequency> | <semitones> | <percentage>]]

Values

<frequency>A value in frequency units (Hertz or kiloHertz, e.g. "100Hz", "+2kHz"). Values are restricted to positive numbers when the 'absolute' keyword is specified.
absoluteIf specified, this keyword indicates that the specified frequency represents an absolute value. If a negative frequency is specified, the computed frequency will be zero.
<semitones>Specifies a relative change (decrement or increment) to the inherited value. The syntax of allowed values is a followed immediately by "st" (semitones).
<percentage>Positive and negative percentage values are allowed, to represent an increment or decrement (respectively) relative to the inherited value.
x-lowA sequence of monotonically non-decreasing pitch levels that are implementation and voice specific. When the computed value for a given element is only a keyword (i.e. no relative offset is specified), then the corresponding absolute frequency will be re-evaluated on a voice change.
lowSee x-low
mediumSee x-low
highSee x-low
x-highSee x-low