Is there a package to record audio in real time in flutter

I want to create an app that records audio and translates it to sign language in flutter. How my app works is it records user audio and translates them into sign language in real time( maybe with a 2 second delay max). What I want is a way to continuously record audio from device and send it to a node.js back end. The audio should be continuously sent to the back end as long as the user is talking. Is there a package or another accepted way to record and send audio in real time ?