To cite package ‘text2speech’ in publications use:

  Muschelli J (2024). _text2speech: Text to Speech Conversion_. R
  package version 1.0.0, <https://github.com/jhudsl/text2speech>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {text2speech: Text to Speech Conversion},
    author = {John Muschelli},
    year = {2024},
    note = {R package version 1.0.0},
    url = {https://github.com/jhudsl/text2speech},
  }