Prompt
ssml tts
Latest observation
Oct 11, 2026
OpenAI APIWeb search: off
SSML means Speech Synthesis Markup Language. It’s an XML-based format you use with TTS systems to control how text is spoken.
Example
<speak>
Hello, <break time="500ms"/> world.
</speak>
Common SSML tags
<speak>: root container<break time="500ms"/>: pause<prosody rate="slow" pitch="+2st" volume="loud">...</prosody>: control speaking style<emphasis level="strong">...</emphasis>: stress a word<say-as interpret-as="characters">API</say-as>: spell out text<p>/<s>: paragraphs and sentences
Example with more features
<speak>
<p>
<emphasis level="moderate">Attention</emphasis>,
your meeting starts in <say-as interpret-as="characters">10AM</say-as>.
</p>
<break time="1s"/>
Please join the call.
</speak>
If you want, I can also give you:
- a full SSML cheat sheet
- SSML examples for Amazon Polly / Google / Azure
- help writing SSML for your exact script
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