WhatsApp has a feature that can save you time when someone sends you a long voice note:
Voice note transcripts.
It's not available everywhere (yet) but I seem to have it. Go to: settings, chats, and toggle on "voice message transcripts" then select your language.
When you get a voice note, hit "transcribe" and you'll see it all written out in text. Only available for new chats after turning it on.
You're welcome.