This repo has crept into my sources.d an I don't know why it is there. I don't recall installing any audio-recorder or asking for anything from ubuntu. How did it get there?
This error occured in aptitude update: Err:6 http://ppa.launchpad.net/audio-recorder/ppa/ubuntu impish Release 404 Not Found [IP: 91.189.95.85 80]
