Local detection and Voice Name in ChatGPT Desktop, Mobile, and API

Hello, It seems the country or local is tied (partially?) to the user account ? Advanced Voice Model :

  • With my Gmail account the French is from France
  • With another account Sol switch to French Canadian (even if I ask for French France)
  • With API (through Azure) the French is also with english accent

Questions :

  • How does ChatGPT find the right country ?
  • How can I set it using with the Realtime API ?
  • Is it related with the deploment or region on Azure ?
  • It seems the voice name are not the same also