Krisp Turn-Taking

The agent verb supports Krisp for two features:

• Turn detection — Krisp’s acoustic end-of-turn model analyzes speech patterns (not just silence) to determine when a user has finished speaking. This produces more natural conversations where users can pause mid-thought without the agent interrupting.
• Noise isolation — Krisp’s voice isolation removes background noise from the caller’s audio, improving STT accuracy in noisy environments.

Licensing Requirement

Obtaining a Krisp License

Contact support@jambonz.org to obtain a Krisp API license for your self-hosted deployment. We will provide:

1. Pricing information based on your expected usage
2. Your Krisp API credentials
3. Configuration instructions for your deployment

Configuration

Once you have obtained your Krisp API credentials, configure them on your feature server(s) using the following environment variables:

After setting these environment variables and restarting the feature server, you can use Krisp features in the agent verb:

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session.agent({
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  llm: { vendor: 'openai', model: 'gpt-4.1-mini', /* ... */ },
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  turnDetection: 'krisp',           // Enable Krisp turn detection
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  noiseIsolation: 'krisp',          // Enable Krisp noise isolation
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  // ...
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}).send();

Alternatives Without Krisp

If you don’t have a Krisp license, you can still build effective voice agents using these alternatives:

Turn Detection Alternatives

Noise Isolation Alternative

Usage in the Agent Verb

Turn Detection

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// Krisp turn detection with custom threshold
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session.agent({
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  turnDetection: {
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    mode: 'krisp',
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    threshold: 0.5  // 0.0-1.0, lower = more aggressive
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  },
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  earlyGeneration: true,  // Enable speculative LLM prompting
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  // ...
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}).send();

Noise Isolation

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// Krisp noise isolation with custom settings
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session.agent({
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  noiseIsolation: {
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    mode: 'krisp',
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    level: 80,           // 0-100, higher = more aggressive
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    direction: 'read'    // 'read' (caller audio) or 'write' (outbound)
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  },
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  // ...
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}).send();

See the agent verb reference for complete documentation of these parameters.