Edit voice settings

Select a voice, configure tuning, and set up your disclaimer.

Lesson 4 of 6 — Choose and tune your agent’s voice.

Complete this after behavior is stable but before call testing.

Where this lives

Navigate to Channels > Voice > Agent Voice

You will see two configurable sections:

Agent

The primary speaking voice

Disclaimer

Used only for legal or informational disclosures (if enabled)

What you are configuring

Each voice entry has three layers:

1. Voice selection

   Who the agent sounds like

2. Weighting

   If multiple voices are used, how they’re distributed

3. Voice tuning

   Stability, clarity, and speed adjustments

Configure your Agent Voice

1. Select the Agent Voice

   In the Agent section:

   • Click Change to open the Voice Library
   • Browse voices using the Explore or Favorites tabs
   • Filter by Language, Region, and Gender
   • Preview each voice using the play button or enter custom text

   Choose a voice that:

   • Matches your audience’s expectations
   • Sounds neutral and professional
   • Remains pleasant over repeated listening

   Once selected, click Select.

2. (Optional) Add multiple agent voices

   You can add more than one agent voice and split usage between them.

   • Click New voice
   • Select an additional voice
   • Assign a percentage weight (for example, 70% / 30%)

   When to use multiple voices

   • You want subtle variation across calls
   • You are testing two voices in parallel
   • Different voices for different scenarios
3. Configure voice settings

   Next to each voice, click the Settings (gear) icon to open advanced tuning.

   Stability (%)

   Controls how consistent the voice sounds over time. Higher values keep tone and delivery more uniform across responses.

   • Higher = more predictable, less expressive

   Recommended: 0.7 or above for reliable performance.

   Clarity and similarity (%)

   Controls how close the generated voice is to the original recording. Higher values sound more realistic but may be less resilient to unexpected content.

   Recommended ranges:

   • Dynamic conversations: 80–95
   • Scripted or repetitive content: 95–100

   Click Done to save settings.

4. Configure disclaimer voice (if enabled)

   If your agent uses a disclaimer:

   • Expand the Disclaimer section
   • Select a voice (can be the same or different from the agent)

   Best practices:

   • Use a clear, neutral voice
   • Avoid expressive or casual tones
   • Keep speed slightly slower than the main agent

   Example disclaimer text: “This call may be recorded for quality and training purposes.”

5. Publish changes

   Once satisfied:

   • Click Publish
   • Changes will apply to the selected environment

Check your understanding

Verify your voice settings

After publishing, make at least one test call and listen to:

Greeting

• Voice sounds clear and welcoming
• Pacing feels natural
• No awkward pauses

Mid-call responses

• Voice remains consistent across turns
• Responses flow naturally
• No sudden changes in tone or speed

Longer responses

• Voice maintains professionalism throughout
• Instructions are clear and easy to follow
• Pacing allows for comprehension

Success criteria:

• Voice sounds consistent throughout the call
• No awkward pacing or unnatural pauses
• Audio matches expectations across all conversation turns

If the voice quality is not as expected, adjust stability first, then speed.

Check your understanding

Try it yourself

1. Challenge: Choose settings for a hotel concierge

   You are configuring voice for a luxury hotel concierge agent. Decide and explain:

   1. Should stability be higher or lower — and why?
   2. What clarity range would you use for natural guest conversations?
   3. Would you use a single voice or multiple voices for this agent?

   Hint

   For a luxury hotel, consistency and tone matter a lot. Think about what “professional” sounds like in audio — and what settings support that.

   Example solution

   1. Stability: High (0.8 or above). Luxury guests expect a consistent, predictable tone — not expressive variation.
   2. Clarity: 80–90. This range keeps the voice natural and conversational without being brittle to unexpected phrasing.
   3. Single voice. Multiple voices introduce inconsistency, which conflicts with a luxury brand expectation. Add a second voice only if you’re specifically A/B testing.

Check your understanding

← Previous: Add a simple topic

Lesson 3 of 6

Next: Environments & versions →

Lesson 5 of 6