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Add German IPA support (wiki-pronunciation-dict + epitran)
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Hybrid approach mirroring English IPA:
- Primary: wiki-pronunciation-dict (636k entries, CC-BY-SA, Wiktionary)
- Fallback: epitran rule-based G2P (MIT license)

IPA modes now use language-appropriate dictionaries:
- auto/en: English IPA (Britfone + eng_to_ipa)
- de: German IPA (wiki-pronunciation-dict + epitran)
- all: EN column gets English IPA, other columns get German IPA
- none: disabled

Frontend shows CC-BY-SA attribution when German IPA is active.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Benjamin Admin
2026-03-25 22:18:20 +01:00
parent a73ddce43d
commit f860eb66e6
7 changed files with 637123 additions and 34 deletions
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3
klausur-service/backend/requirements.txt
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@@ -35,6 +35,9 @@ onnxruntime
# IPA pronunciation dictionary lookup (MIT license, bundled CMU dict ~134k words)
eng-to-ipa
# German IPA rule-based fallback for OOV words (MIT license)
epitran
# Spell-checker for rule-based OCR correction (MIT license)
pyspellchecker>=0.8.1