Song-to-Language-Lesson CLI

Turn any song into an immersive language lesson with clear speech and subtitles.

Problem

Language learners often want to practice with songs they love, but lyrics are fast, pronunciation is unclear and word-by-word explanation is missing. Making listening materials by hand is very time-consuming, and no automated tool exists to recreate the old radio-show style language lesson.

Solution

A CLI that takes an mp3 and automatically performs vocal separation, speech recognition, word/phrase subtitle generation and clear pronunciation synthesis, outputting a language-learning video or audio with subtitles and explanation cues.

Users

Self-learners using music and authentic audio to study languages, language teachers and content creators.

MVP

Input mp3 and auto-generate timed lyric subtitles; produce a clearly spoken sentence-by-sentence audio track; export a video with subtitles and key-phrase notes; support English plus at least one other language; run in one command.

Revenue

Open-source core plus paid cloud processing credits or premium voice models; batch-processing subscription for language teachers.

Why now

Open-source speech recognition, synthesis and vocal separation models are mature enough to run locally, making immersive learning material generation feasible now.