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Work · March 4, 2026

SentenceDeck

Learn languages with real sentences, not word lists

What it does

SentenceDeck turns any text into sentence-by-sentence audio flashcards for language practice. Paste an article or story, auto-split into natural sentences, generate TTS audio (offline system voices or premium cloud voices), then train with a listen → record → compare A/B shadowing loop. Smart silence detection auto-stops recording, and all audio is cached locally so you can practice anytime.

Does the same job

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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…

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