Worrying about language issues while sending the voice messages is a real hitch. You find yourself rushing to the Google asking it to transcribe your message and running back to the right place to SEND.
Perhaps, you lose over speech-to-text missing out some words you say or you want to send a message in an unsupported language, Google is all we have to crack this issue. But again running back and forth takes more energy than sending a text message even when all you want is a clear, human voice-to-voice conversation for mutual understanding.
Well, your problem has finally been solved by the crownless king, Google itself. Until now, you could only use Google Assistant to get your verbalization transcribed by saying