volume / vol

Modify the volume of the speech.

Normal volume for the first sentence.
(Louder volume for the second sentence)[volume:"x-loud"].

Volume modifier (can be abbreviated)[vol:"soft"].

I can combine (multiple values)[pitch:"low";rate:"slow";volume:"loud";voice:"Brian"] at once.

Possible values:

  • silent
  • x-soft
  • soft
  • medium (default rate)
  • loud
  • x-loud

Speech Markdown

Short format

n/a

Standard format

Normal volume for the first sentence.
(Louder volume for the second sentence)[volume:"x-loud"].

Formatters

Plain Text

Normal volume for the first sentence.
Louder volume for the second sentence.

Amazon Alexa SSML

<speak>
    Normal volume for the first sentence.
    <prosody volume="x-loud">Louder volume for the second sentence</prosody>.
</speak>

Google Assistant SSML

<speak>
    Normal volume for the first sentence.
    <prosody volume="x-loud">Louder volume for the second sentence</prosody>.
</speak>