ghostdragon
03/11/2025, 3:48 PMVapi Support Bot
03/11/2025, 3:49 PMrate
, speed
, or tempo
- setting these to lower values can reduce the speaking speed [source](https://discord.com/channels/1211482211119796234/1211483291191083018/1336023375721791549).
2. For content-specific speech rates (like phone numbers or DOB), you might want to explore using SSML (Speech Synthesis Markup Language) which can help control speech delivery attributes including rate for specific content types.
3. If you're using specific TTS providers with Vapi (like ElevenLabs), note that some platforms may have limitations in directly controlling speech rate beyond their available settings [source](https://discord.com/channels/1211482211119796234/1211483291191083018/1336023375721791549).
I wasn't able to find specific instructions for setting different speech speeds based on content type in Vapi. You might need to check the documentation of your specific TTS provider to see if they support SSML or other methods for content-specific speech rate adjustments.
Source:
- [Discord message about speech rate settings](https://discord.com/channels/1211482211119796234/1211483291191083018/threads/1336023375721791549)VahidKowsari
03/11/2025, 6:41 PMMason
03/11/2025, 11:18 PMJeebs from eva.be
03/12/2025, 9:22 AMKings Big
03/12/2025, 7:58 PM