🇫🇷 DVC FRNCH-120 Course Hub • Persistent Audio Library + Reusable Unit Player

Promenades 5e • Interactive Audio Companion Library

Select a unit below to open the reusable Lesson Player. Every unit loads its own content.json and audio-manifest.json, caches downloaded WAV clips in IndexedDB on your iPhone or computer for instant repeat and offline car playback, and highlights each sentence and French phrase as it plays.

1. Lesson Content
content/unit1.json

French textbook explanations, mental hooks, examples, and spoken quizzes—decoupled from the player.

2. Audio Manifest
audio-manifest.json

Maps every English sentence & French phrase to stable clip IDs and canonical WAV files in /audio/.

3. Lesson Player & Adapter
player-audio-adapter.js

Loads manifest → checks IndexedDB → fetches missing WAVs → highlights sentences & preserves pauses.

4. Unit Catalog
catalog.json

Powers this Course Hub so Unit 2, Unit 3, and beyond reuse the exact same player with zero code duplication.

Available Course Units

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