Nicheloom

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Turn native language audio into flashcards and shadowing practice

Details

External ID
48671886
Source
HN
Company
—
Product
Turn native language audio into flashcards and shadowing practice
Website domain
lingochunk.com
Launched
June 25, 2026
Cohort
—
Upvotes
92
Upvotes percentile
0.9077868852459017
Tags
—
Fetched at
Sept. 7, 2026, 9:26 p.m.
Updated at
Sept. 7, 2026, 9:26 p.m.

Description

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.

Enrichment

Theme
video transcription and extraction tools
Vertical
Education
Function
Vertical SaaS
Audience
B2C
AI stance
AI feature
Project type
Commercial product
Normalized one-liner
language learning from audio
Manually corrected
False

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 — 215 launches clear the similarity bar, closest 8 shown.

Attention rank: #20 of 216 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).

Launched 239 days after the earliest competitor.

Other launches for this product

Same idea, different domain

Nobody's really built a vertical saas tool for Insurance yet.