This is simply a synth playing a c note with the pitch automated. Typically used in modern electronic music to signify a build and create an euphoric feeling.
Recording of a modern sewing machine (brand unknown) sewing three basic zigzag seams. Recorded for hermann hiller's performance at mope08 performance art festival in vaasa,finland.
The relentless sound of a data server whirring away in the corner of a busy solicitors office. Never switched off, this hypnotic and maddening sound is an omnipresent feature of the modern office environment.