$extensions/coqui_tts/languages.json

{
  "Arabic": "ar",
  "Chinese": "zh-cn",
  "Czech": "cs",
  "Dutch": "nl",
  "English": "en",
  "French": "fr",
  "German": "de",
  "Hungarian": "hu",
  "Italian": "it",
  "Japanese": "ja",
  "Korean": "ko",
  "Polish": "pl",
  "Portuguese": "pt",
  "Russian": "ru",
  "Spanish": "es",
  "Turkish": "tr"
}