Feature/malayalam normalizer#161
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Add built-in Malayalam (ml) text normalization that automatically converts numbers, currency (?), percentages (%), time, decimals, fractions, ordinals, acronyms, and measurement units into their Malayalam spoken-word equivalents during TTS preprocessing.
Adds support for multiple global currencies including Dollars ($), Pounds (£), Euros (€), Yen (¥), and alternative Rupee formats (Rs, Rs.) in both prefix and suffix positions.
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What this does
Adds text normalization for Malayalam (
language="ml"). Numbers, currency symbols, time, percentages, etc. get converted to spoken Malayalam words before the text hits the tokenizer.Without this, the model tries to pronounce raw symbols like
₹,%,5:30which sounds broken.Examples
₹250ഇരുനൂറ്റി അമ്പത് രൂപ5:30അഞ്ച് മുപ്പത്AICTEഎ ഐ സി ടി ഇ10.5പത്ത് പോയിന്റ് അഞ്ച്1/2അര1stഒന്നാമത്തെ$100നൂറ് ഡോളർ10kmപത്ത് കിലോമീറ്റർFiles changed
omnivoice/utils/text_normalization/__init__.py— language dispatcheromnivoice/utils/text_normalization/malayalam.py— the normalizeromnivoice/models/omnivoice.py— callsnormalize_text()inside_preprocess_all(), guarded by language check so other languages are unaffectedtests/test_malayalam_normalizer.py— 58 testsdocs/tips.md— added a note about this featureAudio samples (before/after)
Test 1:
"എന്റെ കയ്യിൽ $100 ഉം Rs. 50 ഉം ഉണ്ട്. ഇതിന് £200 വിലവരും."Test 2:
"എനിക്ക് ₹100 ഉണ്ട്, സമയം 5:30 ആയി. AICTE മോഡൽ 10.5 സ്കോർ നേടി. 1/2 ലിറ്റർ പാലും 1st പ്രൈസും കിട്ടി"