graph TD A[Start] --> B[Receive Input Script] B --> C[Validate Script Length] C --> D{Script Valid?} D -- Yes --> E[Apply Voice Settings] D -- No --> F[Return Error] F --> B E --> G[Process Script Through Skill #170] G --> H[Generate MP3] H --> I[Validate MP3 Output] I --> J{MP3 Valid?} J -- Yes --> K[Return MP3 URL] J -- No --> L[Log Error] L --> G K --> M[End] subgraph Voice-Over Generation Silo E G H I end