misaki-ja-lightning 0.1.1

Lightweight Japanese text-to-IPA phoneme converter extracted from misaki

misaki-ja-lightning ⚡

Lightweight Japanese text-to-IPA phoneme converter extracted from the misaki library. This package contains only the Japanese G2P (grapheme-to-phoneme) functionality with minimal dependencies.

Features

• 🇯🇵 Convert Japanese text (hiragana, katakana, kanji) to IPA phonemes
• 🔢 Convert numbers to Japanese kana
• ⚡ Lightning-fast with minimal dependencies
• 🎯 Focused on Japanese language only
• 🔧 Uses pyopenjtalk for accurate phoneme conversion

Installation

pip install misaki-ja-lightning

Usage

Basic G2P Conversion

from misaki_ja_lightning import JAG2P

# Initialize the converter
g2p = JAG2P()

# Convert Japanese text to IPA phonemes
text = "こんにちは、世界"
phonemes, tokens = g2p(text)

print(phonemes)  # IPA phoneme string with pitch information

Number to Kana Conversion

from misaki_ja_lightning import Convert, ConvertKanji

# Convert Arabic numbers to Japanese
result = Convert(12345, 'hiragana')
print(result)  # いちまんにせんさんびゃくよんじゅうご

# Convert to kanji
result = Convert(12345, 'kanji')
print(result)  # 一万二千三百四十五

# Convert to romaji
result = Convert(12345, 'romaji')
print(result)  # ichi man ni sen san byaku yon juu go

# Supported formats: 'hiragana', 'kanji', 'romaji'
# Note: 'katakana' is not supported in num2kana module

# Convert kanji numbers back to Arabic
number = ConvertKanji("一万二千三百四十五")
print(number)  # 12345

Token-level Processing

from misaki_ja_lightning import JAG2P

g2p = JAG2P()
phonemes, tokens = g2p("今日は良い天気ですね")

for token in tokens:
    print(f"Text: {token.text}")
    print(f"Phonemes: {token.phonemes}")
    print(f"Tag: {token.tag}")
    print(f"Pitch: {token._.pitch}")
    print("---")

What's Included

This lightweight package includes only:

• ja.py - Japanese G2P converter using pyopenjtalk
• num2kana.py - Number to Japanese kana converter
• token.py - Token data structure

Differences from Original Misaki

• ✅ Japanese-only (removed other languages)
• ✅ Removed cutlet dependency
• ✅ Removed addict dependency
• ✅ Simplified token structure
• ✅ Only pyopenjtalk version (no cutlet option)
• ✅ Minimal dependencies

Requirements

• Python >= 3.8
• pyopenjtalk (forked version with /tmp support for serverless environments)

Note: This package uses a forked version of pyopenjtalk that downloads the dictionary to /tmp instead of the package directory. This allows it to work in serverless environments like Vercel where the filesystem is read-only.

License

MIT License (inherited from original misaki library)

Credits

This package is extracted from misaki by hexgrad. All credit for the original implementation goes to the misaki authors.

The num2kana module is based on Convert-Numbers-to-Japanese by Greatdane (MIT License).

Related Projects

• misaki - Full multilingual G2P library
• Kokoro-82M - Text-to-speech model
• pyopenjtalk - Japanese text processing

Use Cases

Perfect for:

• Text-to-speech applications
• Japanese language learning tools
• Phoneme-based synthesis
• Lightweight Japanese text processing

Support

For issues and questions, please visit the GitHub Issues page.