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Use this page to select and fine-tune the voice your callers hear. The voice you choose shapes how callers perceive your brand — a mismatch in accent, tone, or quality can undermine an otherwise well-built agent. Configure voice settings in Channels > Voice > Agent Voice.

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Voice sections

The page displays two voice configurations:
SectionPurpose
AgentThe main voice your users interact with during calls
DisclaimerA separate voice for legal or informational disclaimers

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Selecting a voice

  1. Click Change next to either the Agent or Disclaimer section.
  2. The Voice library opens.
  3. Browse voices using the Explore tab or access saved voices in Favorites.
  4. Filter by language, region, and gender.
  5. Preview voices with custom text before selecting.
  6. Click Select to apply the voice.
Use the Voice library’s preview feature with text that matches your agent’s typical responses to ensure the voice fits your use case.

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Voice settings

Fine-tune the selected voice’s parameters:
  1. Click the Settings icon next to the voice.
  2. Adjust the sliders in the Voice Settings popup:
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Stability
slider
Controls how consistent the voice sounds over time. Higher values keep tone and delivery more uniform across responses.Recommended: Set to 0.7 or above for reliable performance.
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Clarity and Similarity
slider
Adjusts how closely the generated voice matches the original recording. Higher values sound more realistic and detailed, but may be less resilient to unexpected prompts. Lower values smooth the voice slightly, making it better suited for dynamic or ASR-driven content.
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Style
slider
Controls stylistic expressiveness of the voice (0.0–1.0). Higher values produce more expressive speech with varied intonation. Lower values keep delivery more neutral and consistent. Only supported by certain TTS providers and voice models.
  1. Click Done to save changes.

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Publishing changes

After updating voice settings:
  1. Review your configuration on the Agent Voice page.
  2. Click Publish in the top right corner to apply changes to your live agent.
Voice changes only take effect after publishing. Test your agent after publishing to confirm the new voice sounds as expected.

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Disclaimer voice configuration

If disclaimer audio is configured separately, the page provides a link to Channels > Voice > Voice Configuration for those settings.
The Disclaimer voice is optional. If not configured, the Agent Voice handles all agent speech.
Last modified on March 31, 2026