ElevenLabs Cloned Voice Integration

[martinbedouret]

Implement comprehensive ElevenLabs cloned voice integration into Cboard to provide users with advanced text-to-speech capabilities using personalized cloned voices.

Overview

This epic encompasses the complete integration of ElevenLabs API into Cboard's existing speech synthesis system, following patterns established by Azure Speech Services integration.

Key Features

• 🎤 Cloned Voice Support: Integration with ElevenLabs API for personalized voice cloning
• ⚙️ Advanced Voice Controls: Stability, Similarity Enhancement, and Style Exaggeration settings
• 🔐 Secure API Management: API key configuration and validation
• 🎯 Enhanced UI/UX: Improved voice selection and management interface
• 📱 Cross-Platform Support: Consistent experience across web and mobile platforms

Implementation Phases

• API client and configuration setup
• SpeechProvider architecture extension
• Basic TTS synthesis implementation
• Settings UI components and API key management
• Advanced voice quality controls
• Enhanced voice selection interface
• User documentation and help system
• Environment configuration and deployment

Technical Architecture

The implementation follows Cboard's existing patterns:

• Extends SpeechProvider architecture alongside local and Azure voices
• Integrates with existing tts.js engine
• Follows Material UI design patterns in Settings components
• Maintains compatibility with current voice management system

Success Criteria

• Users can configure ElevenLabs API keys securely
• Cloned voices appear in voice selection menu with proper labeling
• Advanced voice settings (stability, similarity, style) are functional
• Speech synthesis works seamlessly with existing TTS infrastructure
• Comprehensive test coverage ensures reliability
• User documentation supports easy setup and troubleshooting
• Feature can be deployed with proper environment configuration

Dependencies

• ElevenLabs API access and documentation
• Existing Cboard SpeechProvider and TTS infrastructure
• Material UI components
• Testing frameworks (Jest, Enzyme, Playwright)

Related Documentation

• ElevenLabs API Documentation
• Cboard Speech Architecture

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This epic will be tracked through multiple sub-issues covering each aspect of the implementation, from API integration to user documentation.