Products and my role
- Voice Studio: Teachers configure multiple characters, voices, pauses, tone, speed, and volume in a visual SSML editor to produce listening-test material directly. I built parts of the frontend, API integration, and audio processing, connecting SvelteKit, Tailwind CSS, and Azure TTS output; it cut manual recording work by about 80%.
- English Scenario Chatroom: Spoken-English practice in everyday scenarios such as food, clothing, housing, transport, education, and leisure, connecting voice input, chatbot dialogue, and speech playback. I integrated Azure Speech Recognition and Azure TTS on top of Hugging Face Chat-UI; it has been used in 10+ interactive practice sessions.
- Speech Examination Platform: A speaking mock exam with seven task types, designed and built by me from scratch, which has supported 1,000+ students preparing for exams.
- Across all three products I handle requirements, frontend and backend development, AI/speech service integration, audio processing, and deployment and maintenance.
Screenshot provenance: Voice Studio and scenario-course screens captured after production sign-in; historical conversations have been hidden in the Chat UI.
