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Phonemizer -- foʊnmaɪzɚ

  • The phonemizer allows simple phonemization of words and texts in many languages.

  • Provides both the phonemize command-line tool and the Python function phonemizer.phonemize. See the package's documentation.

  • It is based on four backends: espeak, espeak-mbrola, festival and segments. The backends have different properties and capabilities resumed in table below. The backend choice is let to the user.

    • espeak-ng is a Text-to-Speech software supporting a lot of languages and IPA (International Phonetic Alphabet) output.

    • espeak-ng-mbrola uses the SAMPA phonetic alphabet instead of IPA but does not preserve word boundaries.

    • festival is another Tex-to-Speech engine. Its phonemizer backend currently supports only American English. It uses a custom phoneset, but it allows tokenization at the syllable level.

    • segments is a Unicode tokenizer that build a phonemization from a grapheme to phoneme mapping provided as a file by the user.

    espeak espeak-mbrola festival segments
    phone set IPA SAMPA custom user defined
    supported languages 100+ 35 US English user defined
    processing speed fast slow very slow fast
    phone tokens ✔️ ✔️ ✔️ ✔️
    syllable tokens ❌ ❌ ✔️ ❌
    word tokens ✔️ ❌ ✔️ ✔️
    punctuation preservation ✔️ ❌ ✔️ ✔️
    stressed phones ✔️ ❌ ❌ ❌
    tie ✔️ ❌ ❌ ❌

Citation

To refenrece the phonemizer in your own work, please cite the following JOSS paper.

@article{Bernard2021,
  doi = {10.21105/joss.03958},
  url = {https://doi.org/10.21105/joss.03958},
  year = {2021},
  publisher = {The Open Journal},
  volume = {6},
  number = {68},
  pages = {3958},
  author = {Mathieu Bernard and Hadrien Titeux},
  title = {Phonemizer: Text to Phones Transcription for Multiple Languages in Python},
  journal = {Journal of Open Source Software}
}

Licence

Copyright 2015-2021 Mathieu Bernard

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.