Bernardo's English Helper
An AI-powered English conversation app for adults 50+, built as part of my PhD research. Uses voice interaction, real-time feedback, and CEFR-aligned assessment to personalise each learner's experience 24/7.
- Voice interaction with real-time AI responses
- CEFR-aligned progress tracking across sessions
- Customisable accent, pace, and topic selection
- Currently in beta with Madrid-area research participants
How it works
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Speech recognition
The learner speaks; the app transcribes their words in real time using automatic speech-to-text.
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Large language model
An LLM acts as a conversational tutor - understanding the learner's input, correcting errors gently, and generating natural responses.
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Text-to-speech
Responses are read aloud in the learner's chosen accent, keeping the interaction fully spoken.
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CEFR assessment layer
Each session is mapped against CEFR can-do statements, tracking progress across sessions in a PostgreSQL database.
50+
Target age group
CEFR
Aligned
PhD
Research
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