Buzz of a Neon light, steady
My desk ventilator running at full speed. Recorded with an 'audio technica ATR55' using my PC (soundcard: Audigy 2 Platinum).
smooth yet prominent sound of exposed bathroom fan.
a looped recording of a didgeridoo tone. circa '98
Recording of my agave didgeridoo at 180BPM with no reverb,
techno, progressive synthesizer