Hey hey, occasionally I hear a short "tune" on my pc speaker. It's too unexpected and too short to try lsof to see which process is using the pc speaker. The sound is reminiscent of old console games. It's several short notes, all in a blues pentatonic. this has been an issue right from the installation. The only special daemon running is brltty, which at least didn't use to make such sounds in the past. Can anyone suggest a process or a method of finding it? It only happens a couple of times a day, but this could be a problem when recording with the microphone. On the other hand, I can't turn off the pc speaker, since I rely on BRLTTY and other signals in non recording contexts. Thank you and best wishes, Jeanette -------- When you need someone, you just turn around and I will be there <3