pythainlp.transliterate

The pythainlp.transliterate turns Thai text into a romanized one (put simply, spelled with English).

Modules

pythainlp.transliterate.romanize(text: str, engine: str = 'royin') → str[source]

This function renders Thai words in the Latin alphabet or “romanization”, using the Royal Thai General System of Transcription (RTGS) 1. RTGS is the official system published by the Royal Institute of Thailand. (Thai: ถอดเสียงภาษาไทยเป็นอักษรละติน)

Parameters

  • text (str) – Thai text to be romanized

  • engine (str) – ‘royin’ (default) or ‘thai2rom’

Returns

A string of Thai words rendered in the Latin alphabet.

Return type

str

Options for engines

  • royin - (default) based on the Royal Thai General System of Transcription issued by Royal Institute of Thailand.

  • thai2rom - a deep learning-based Thai romanization engine (require PyTorch).

Example

from pythainlp.transliterate import romanize

romanize("สามารถ", engine="royin")
# output: 'samant'

romanize("สามารถ", engine="thai2rom")
# output: 'samat'

romanize("ภาพยนตร์", engine="royin")
# output: 'phapn'

romanize("ภาพยนตร์", engine="thai2rom")
# output: 'phapphayon'
pythainlp.transliterate.transliterate(text: str, engine: str = 'thaig2p') → str[source]

This function transliterates Thai text.

Parameters

  • text (str) – Thai text to be transliterated

  • engine (str) – ‘icu’, ‘ipa’, or ‘thaig2p’ (default)

Returns

A string of phonetic alphabets indicating how the input text should be pronounced.

Return type

str

Options for engines

  • icu - pyicu, based on International Components for Unicode (ICU)

  • ipa - epitran, output is International Phonetic Alphabet (IPA)

  • thaig2p - (default) Thai Grapheme-to-Phoneme, output is IPA (require PyTorch)

Example

from pythainlp.transliterate import transliterate

transliterate("สามารถ", engine="icu")
# output: 's̄āmārt̄h'

transliterate("สามารถ", engine="ipa")
# output: 'saːmaːrot'

transliterate("สามารถ", engine="thaig2p")
# output: 's aː ˩˩˦ . m aː t̚ ˥˩'

transliterate("ภาพยนตร์", engine="icu")
# output: 'p̣hāphyntr̒'

transliterate("ภาพยนตร์", engine="ipa")
# output: 'pʰaːpjanot'

transliterate("ภาพยนตร์", engine="thaig2p")
# output:'pʰ aː p̚ ˥˩ . pʰ a ˦˥ . j o n ˧'
pythainlp.transliterate.pronunciate(word: str, engine: str = 'w2p') → str[source]

This function pronunciates Thai word.

Parameters

  • word (str) – Thai text to be pronunciated

  • engine (str) – ‘w2p’ (default)

Returns

A string of Thai letters indicating how the input text should be pronounced.

Return type

str

Options for engines

  • w2p - Thai Word-to-Phoneme

Example

from pythainlp.transliterate import pronunciate

pronunciate("สามารถ", engine="w2p")
# output: 'สา-มาด'

pronunciate("ภาพยนตร์", engine="w2p")
# output: 'พาบ-พะ-ยน'

Romanize Engines

thai2rom

royin

Rendering Thai words in the Latin alphabet or “romanization”, using the Royal Thai General System of Transcription (RTGS), which is the official system published by the Royal Institute of Thailand.

param str text

Thai text to be romanized

return

A string of Thai words rendered in the Latin alphabet.

rtype

str

Transliterate Engines

icu

Use ICU (International Components for Unicode) for transliteration :param str text: Thai text to be transliterated. :return: A string of Internaitonal Phonetic Alphabets indicating how the text should be pronounced.

ipa

thaig2p

References

1

Nitaya Kanchanawan. (2006). Romanization, Transliteration, and Transcription for the Globalization of the Thai Language. The Journal of the Royal Institute of Thailand.