Refactor api_v2.py and api_v3.py to update sampling parameters and weight paths for better clarity and support for v3/v4 vocoders. Introduce new methods in PrepareCoordinator for handling empty text features and improve profiling capabilities. Additionally, update unified engine components to streamline audio processing and state management, enhancing overall performance and maintainability of the TTS system.
Introduce new modules including unified_engine_api_direct, unified_engine_api_profile, unified_engine_api_request, and unified_engine_api_scheduler. These additions enhance the TTS system by providing structured interfaces for direct TTS execution and scheduler-based processing. The new components support improved request handling, profiling, and state management, significantly enhancing the architecture and maintainability of the TTS framework.
