Documentation Index

Fetch the complete documentation index at: https://docs.sigmamind.ai/llms.txt

Use this file to discover all available pages before exploring further.

Voice is one of the most important configuration decisions for your AI agent. It directly impacts:

• User experience
• Trust and engagement
• Perceived intelligence of the agent

👉 A poor voice choice can make even a well-designed agent feel robotic.

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Available Voice Providers

You can choose voices from multiple providers:

• ElevenLabs
• OpenAI
• Cartesia
• Rime AI
• Hume AI

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How These Providers Differ (Important)

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Recommendation

👉 If you’re unsure:

• Start with default voices
• Move to ElevenLabs for production

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Step 2: How to Choose the Right Voice

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Based on Use Case

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Based on Audience

• Older users → slower, clearer voice
• Younger users → slightly energetic
• Noisy environments → very clear pronunciation

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Strong Recommendation

👉 Don’t choose voice based on preference
👉 Choose based on who will hear it

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Step 3: Explore Voices

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Search

Use keywords like:

• “female”
• “indian”
• “young”
• “professional”

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Filters

• Age
• Gender
• Accent

👉 Match voice with your audience geography

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Preview (Critical Step)

Before selecting:

• Play the sample
• Check pronunciation
• Test real phrases

👉 Many voices sound good in preview but fail in real conversations.

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Review Voice Details

Each voice includes:

• Description
• Accent
• Age group
• Gender

Use this to ensure alignment with your use case.

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Step 4: Default vs Custom Voices

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Default Voices

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Use When:

• Testing
• Quick setup
• Internal usage

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Pros

• Fast response
• Easy to configure

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Cons

• Less natural

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Custom Voices (e.g., ElevenLabs)

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Use When:

• Customer-facing agents
• Sales or support calls
• Human-like interaction needed

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Pros

• Highly realistic
• Better engagement

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Cons

• Slightly higher latency

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Strong Recommendation

👉 Most production agents should use custom voices
👉 Default voices are mainly for testing

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How to Add Custom Voice (ElevenLabs)

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Steps:

1. Go to ElevenLabs dashboard
2. Select or create a voice
3. Copy the Voice ID
4. Go to SigmaMind → Voice Settings
5. Paste into Custom Voice
6. Click Submit

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Verify It Works

After adding:

• Play preview again
• Confirm voice changed
• Run a test call

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Clear Decision Rule

👉 If your agent talks to customers → use custom voice
👉 If you’re testing → use default

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Final Recommendation

Start simple → test → upgrade to better voice 👉 Voice is not just a setting — it’s part of your product experience