Is what?
It’s an implementation of a speak to text software. Currently the best open source one, if not the best.
Particularly you can talk to it with a “international” English accent and it will work. Or French or Spanish or Norwegian… and it will transcribe English.
So could you use it to translate audio of a foreign language into english text?
Yes. According to the OpenAI Whisper repo [0], when you use the 'whisper' command line tool:
"Adding --task translate will translate the speech into English."
I tried translating a conference with a German speaker. The transcription was superb, but the translation no so much.