The speech-rate property specifies the speaking rate. Note that both absolute and relative keyword values are allowed.
The possible values are -
- number − Specifies the speaking rate in words per minute.
- x-slow − Same as 80 words per minute.
- slow − Same as 120 words per minute.
- medium − Same as 180 - 200 words per minute.
- fast − Same as 300 words per minute.
- x-fast − Same as 500 words per minute.
- faster − Adds 40 words per minute to the current speech rate
- slower − Subtracts 40 words per minutes from the current speech rate.