Turn native language audio into flashcards and shadowing practice
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Here is a tool I built initially for myself to help with my German and Greek language studies. It started as a hack for creating Anki cards from native language audio. It extracts the words, finds their base forms (lemmas) and groups the examples by the lemma. At some point I realised that I have a transcription with word level timestamps that opens a lot of other opportunities. So I added a mode to click the first and last word in the transcript and it starts looping with the right gap and repeat count.Another feature I use a lot is selecting an audio fragment, sending a predefined prompt to an AI to "explain grammar" or "explain nuances of meaning" and I still experimenting with prompts.And because shadowing is so easy I also use it as a player to improve my English pronunciation. (I am not a native English speaker.)I made a quick video showing the workflow for creating Anki cards and shadowing: https://youtu.be/TaR58uuDBvU?si=o5aGLAi2S-BZ7Zy9The app supports 15 input languages (Japanese and Chinese are the latest experimental additions), and more than 30 output languages.I would really appreciate it if you could try it https://lingochunk.com/try. I know there are other tools with similar functionality but I created something that fits my workflow and it is fun to build.Also I struggled to find public domain audio for the try page. I'd be grateful if anyone could point me to public domain sources (I used LibriVox, Wikimedia and FSI courses), or if you're a creator, let me feature some of your own recordings with credits and links.
HN · launched Jun 25, 2026 · 92 upvotes (top 9%) · 0 views
Niche: language learning apps · 511 launches, 50 in the last 7 days ▼ -6% · Explore this niche →
Category and tags
- Education
- Content generation
- B2C
- AI feature
- Commercial product
Visit website ↗ Source listing ↗
More like this: all 511 launches in language learning apps →
Could you build this?
Yes An audio processing tool that runs speech-to-text (Whisper API), lemmatizes text with spaCy/NLTK, and exports flashcards with audio slices to Anki (.apkg) can be quickly vibe-coded.
Discussion
20 comments analyzed.
Competitors mentioned: Audacity (for audio cropping), Anki (flashcard alternative), Gutenberg fairy tales/video subtitles (learning sources)
Concerns raised: Pricing/cost of STT and translation APIs, Japanese kanji pronunciation ambiguity with AI TTS, Starter deck quality (random, includes irrelevant words like 'URL'), Scalability of FSRS-5 flashcard algorithm not tested, Some languages lack reliable POS/lemma libraries
Feature requests: Automatic pronunciation grading/checking tool, Text-to-speech (TTS) audio generation from text, Reveal sentences individually after blurring entire text, Content producer publishing/course distribution with restricted access, Better starter deck curation (filter function words)
Competitors
Other products that read as similar to this one : 598 launches clear the similarity bar, closest 8 shown.
Attention rank: #47 of 599 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 239 days after the earliest competitor.
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- SubSmith · hn · 2026-08-28 · 78 upvotes · similarity 0.52
- Chorus: AI Listening Lab · ph · 2026-11-09 · 1 upvotes · similarity 0.51
- Shadowly — Speak English like the video · ph · 2026-10-07 · 1 upvotes · similarity 0.50
- Ether Echo · ph · 2026-09-19 · 1 upvotes · similarity 0.50
- Bilingual Mix · ph · 2026-10-21 · 1 upvotes · similarity 0.49
- Hanky · hn · 2026-07-23 · 10 upvotes · similarity 0.49
- WhateverYouLearn · ph · 2026-11-07 · 2 upvotes · similarity 0.48
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