Voice Cloning

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Overview

• Upload Voice Samples: Upload high-quality audio recordings to create voice models
• Multi-Provider Support: Use ElevenLabs, Resemble AI, and other providers that support voice cloning
• Instant Voice Creation: Generate cloned voices ready for immediate use
• Voice Management: Organize, test, and manage your custom voices
• Usage Analytics: Track voice usage for billing and optimization

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Supported Providers

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ElevenLabs

• Instant Voice Cloning: Create voices from single audio samples
• High Quality: Professional-grade voice synthesis
• Multiple Languages: Support for 29+ languages
• Quick Processing: Voices ready in seconds

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Resemble AI

• Professional Training: Advanced voice training algorithms
• Custom Models: Highly personalized voice characteristics
• Unlimited Voices: Create as many voices as needed
• Enterprise Features: Advanced customization options

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Future Providers

• Inworld AI: Coming soon with emotional voice cloning
• OpenAI: Voice cloning capabilities when available

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Voice Sample Requirements

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Audio Quality Guidelines

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Getting Started

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Step 1: Upload Voice Sample

1. Upload Audio File: Drag and drop or click to select your audio file
2. Add Metadata: Provide a name, description, and tags
3. Validation: System automatically validates audio quality
4. Processing: File is uploaded and prepared for cloning

const formData = new FormData();
formData.append('file', audioFile);
formData.append('name', 'Professional Voice');
formData.append('description', 'Clear, professional speaking voice');
formData.append('tags', 'professional, clear, business');

const response = await fetch('/assistants/123/voice-samples/upload', {
  method: 'POST',
  body: formData,
  headers: {
    'Authorization': 'Bearer YOUR_API_KEY'
  }
});

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Step 2: Create Cloned Voice

1. Select Provider: Choose ElevenLabs or Resemble AI
2. Configure Options: Set voice name, language, and quality settings
3. Initiate Cloning: Start the voice training process
4. Monitor Progress: Track cloning status in real-time

const response = await fetch('/assistants/123/cloned-voices/create', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
    'Authorization': 'Bearer YOUR_API_KEY'
  },
  body: JSON.stringify({
    voice_sample_id: 456,
    provider: 'elevenlabs',
    name: 'Custom Professional Voice',
    language: 'en',
    enhance_quality: true
  })
});

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Step 3: Use Cloned Voice

1. Voice Selection: Choose from your cloned voices
2. Testing: Preview the voice with sample text
3. Assignment: Set as the assistant’s default voice
4. Go Live: Start using the voice in live calls

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Voice Management

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Voice Library

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Voice Testing

1. Text-to-Speech Preview: Enter sample text to hear the voice
2. Quality Assessment: Evaluate clarity, naturalness, and accuracy
3. Comparison Testing: Compare with original samples and other voices
4. A/B Testing: Test different voices with real users

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API Integration

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Upload Voice Sample

curl -X POST "https://api.burki.dev/assistants/123/voice-samples/upload" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -F "file=@voice_sample.wav" \
  -F "name=Professional Voice" \
  -F "description=Clear professional speaking voice"

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Create Cloned Voice

curl -X POST "https://api.burki.dev/assistants/123/cloned-voices/create" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "voice_sample_id": 456,
    "provider": "elevenlabs",
    "name": "Custom Professional Voice",
    "language": "en",
    "enhance_quality": true
  }'

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List Cloned Voices

curl -X GET "https://api.burki.dev/assistants/123/cloned-voices" \
  -H "Authorization: Bearer YOUR_API_KEY"

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Best Practices

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Recording Quality

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Voice Management

1. Naming Convention: Use descriptive, consistent names
2. Version Control: Keep track of voice iterations and improvements
3. Usage Documentation: Document which voices work best for different scenarios
4. Regular Testing: Periodically test voice quality and user satisfaction
5. Cost Monitoring: Track usage and costs across different providers

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Security and Privacy

• Consent: Always obtain explicit consent before using someone’s voice
• Data Protection: Store voice samples securely and follow GDPR/CCPA requirements
• Access Control: Limit who can create and manage cloned voices
• Audit Trail: Keep logs of voice creation and usage
• Retention Policy: Define how long voice samples and models are stored

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Troubleshooting

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Common Issues

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Provider Comparison

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Use Cases

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Customer Service

• Consistent Brand Voice: Maintain brand identity across all interactions
• Multilingual Support: Create voices in different languages for global support
• Personality Matching: Match voice characteristics to brand personality

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Sales and Marketing

• Campaign Voices: Create specific voices for marketing campaigns
• Regional Variants: Adapt voices for different geographical markets
• Seasonal Adjustments: Modify voice characteristics for holidays or events

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Entertainment and Media

• Character Voices: Create unique voices for virtual characters
• Narrator Voices: Professional voices for content narration
• Interactive Experiences: Engaging voices for games and interactive media

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Enterprise Applications

• Executive Voices: Clone executive voices for consistent communication
• Training Systems: Consistent voices for e-learning and training
• Brand Ambassadors: Virtual representatives with authentic brand voices

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Getting Help