How to make voice agent speak slowly
# support
g
When it speak like phonenumber or dateof birth it speak fast other person don't understand that
v
Hi there! 👋 I understand you want your voice agent to speak more slowly, especially for phone numbers and dates of birth. Based on what I've found in our documentation: 1. Speech rate adjustments are typically made through text-to-speech engine parameters labeled as
rate
,
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)
v
I found that different speech models speak numbers differently (faster or slower). For now one solution was to switch to azure or cartesia. Some of them might have option for speed but that didnt work too well.
m
For the vast majority of issues like that it's going to be coming from the voice model itself. Certain voice providers speed settings can be tweaked, but if it's just those words I would try another voice / model. Personally, I recommend Cartesia's Sonic / Sonic 2 model. Is there a specific vibe you're looking for for the voice?
j
Sonic 2 isn't available from the Vap interface, is it ? Or is it just "sonic" ?
k
Hey! To help track down this issue, could you share: - The call ID
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