Major Features:
• IndexTTS-2 engine with zero-shot voice cloning and emotion control
• Multi-modal emotion support (audio refs, text descriptions, manual vectors)
• Character switching with emotion references: [Alice:angry_bob]
• Native IndexTTS-2 token-based chunking integration
• Comprehensive parameter exposure with 25+ engine-specific options
Core Components:
• engines/processors/index_tts_processor.py - Main processor with emotion support
• nodes/engines/index_tts_engine_node.py - Engine configuration node
• Updated unified TTS Text node with IndexTTS-2 integration
• Node registration in main nodes.py
Dependencies:
• Added 8 safe IndexTTS-2 dependencies to install.py and requirements.txt
• Dependency testing confirmed only descript-audiotools conflicts (already handled)
• All new deps use flexible versioning (>=) to avoid lock conflicts
Character Parser Fix:
• Fixed circular import by moving CharacterSegment to separate types.py
• Maintains backward compatibility while supporting emotion references
• Modular structure preserved (4 modules under 500 lines each)
Technical Details:
• Emotion disentanglement separates speaker identity from emotional expression
• Supports [character:emotion] syntax for per-segment emotion control
• IndexTTS-2 native chunking overrides character-based chunking when enabled
• Full caching integration and pause tag support included
• Error handling with graceful fallbacks for missing voices/emotions
MAJOR: IndexTTS-2 TTS engine integration
- Core IndexTTS engine with unified model interface integration
- Auto-downloader for HuggingFace models + GitHub source code
- Engine adapter with emotion support [Alice:angry_bob] syntax
- Cache integration for IndexTTS-2 parameters
- Factory registration for proper model management
MAJOR: Character parser modularization (930 → 300 lines each)
- Split into base_parser.py, language_resolver.py, segment_processor.py, validation.py
- Added emotion support with backward compatibility
- New split_by_character_with_emotions() method for advanced engines
- Flexible tag parsing: [de:Alice:angry_bob] support
- Language disambiguation to avoid Alice vs language code conflicts
- Full backward compatibility maintained
FEATURES:
- IndexTTS-2 emotion disentanglement (speaker vs emotion separation)
- Duration control and precise voice cloning
- Multi-modal emotion control (audio refs, text, vectors)
- Character switching with emotion references
- All official IndexTTS-2 parameters exposed
DOCS: Implementation plan and architectural TODO items added
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