A short high pitched cash register beep
Generator machine running
Dot matrix printer printing document. Sound of carriage and head movement and paper feed.
Randomly repeating beeps and bleeps modulating, long
Screeching of a band or circular saw in operation cutting
Surging multi-timbral digital chirrups and bleeps
Quiet sewing on electric sewing machine. Starts, runs and stops several times for various durations.
Fax machine hums and whirrs as several pages of fax are sent, then fan spins down