Problem
Pronunciation products often present confidence-heavy scores without enough evidence that the score is valid or useful for a specific learner.
Actual state
The family includes a substantial web interface, external phoneme-analysis service, realtime audio experiments, profiles, and reports; the public core flow and scoring validity remain incomplete.
System architecture
A web application connects profile and session state to separate phoneme-analysis and realtime-coaching paths.
Christian's role
Designed and built the product surfaces, speech-analysis integration, realtime agent experiments, learner profiles, and reports.
Verified evidence
repositorySubstantial web and service implementation audited
Safety, privacy, and authority boundary
- No objective scoring claim
- No proven learner improvement
- Synthetic audio and transcripts only in public evidence
Current limitation
- Scoring validity, API security, persistence consistency, tests, and the complete core flow need work.
Next milestone
Rebuild one narrow pronunciation exercise with human-reviewed labels.