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🚀 Features

Speech Coach provides a rich set of features designed to help users improve their spoken English for professional and academic settings — from job interviews to project discussions.

🗣️ Speaking Practice by Scenario​

Practice structured speaking tasks tailored to real-world professional use cases:

  • Job interview simulations with common questions for developers
  • Tech meeting topics (e.g., status updates, code reviews, feature proposals)
  • Academic-style prompts based on exam formats like TOEFL or presentations

New scenarios will focus on improving communication in the workplace — especially for engineers and technical roles.

🤖 AI-Powered Feedback​

Receive instant, targeted feedback using OpenAI technologies:

  • Whisper: Converts your speech to accurate transcripts
  • GPT-4: Evaluates clarity, grammar, tone, and provides example improvements

This system helps refine your responses and improve fluency in professional English.

📈 Real-Time Analytics​

Track your progress with dynamic analytics, powered by:

  • Bytewax: Sliding window processing for recent performance trends
  • Redpanda: Event streaming from user interactions
  • Metrics include speaking length, word diversity, and session frequency

These insights support long-term growth and self-awareness in spoken communication.

📲 Seamless Telegram Integration​

Interact through familiar voice messages in Telegram. The bot sends speaking prompts, receives voice responses, and delivers AI-powered feedback — all inside a private chat.

🧱 Scalable Microservices Architecture​

Speech Coach is built with a robust microservices architecture:

  • API services via FastAPI
  • Audio processing workers with streaming coordination
  • Redis Streams and Redpanda for asynchronous task flow
  • Scalable and fault-tolerant infrastructure

Designed for flexibility and future growth.

💾 Efficient Data Storage​

Your session data is stored securely and efficiently:

  • PostgreSQL for transcripts and user data
  • MinIO for raw voice message storage
  • Real-time data pipelines for usage analysis and insights

Want to learn more about how it all works? Check the System Architecture page.