Add Japanese and trilingual text normalization for numbers and symbols #18
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Streamline and simplify code in the SOLA module for improved readability and maintenance
Refactor SOLA component code
Implement regex-based text normalization functionality to support trilingual (CJE) content processing
Add text normalization for Chinese, Japanese, and English
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Changes
Implemented Japanese text normalization module to handle numbers, symbols and special characters
Added trilingual (presumably Chinese/English/Japanese) text normalization support
Created regex patterns for converting numbers and symbols into pronounceable text
Integrated the new normalization modules into the existing text processing pipeline
Why
This enhancement improves pronunciation accuracy when synthesizing Japanese content and multilingual text containing numbers and symbols, ensuring more natural-sounding speech output across all supported languages.
Testing
Verified correct normalization of various Japanese numerical expressions
Tested with mixed language text containing numbers and special symbols
Confirmed proper pronunciation of normalized text through synthesized audio output
Compared results against expected pronunciations in each language