Noise of a solar power dc-ac inverter on a sunny day. A static hum with some kind of a rhythmic modulation. Sometimes other noises like a bird singing outside, however mostly the pure sound of the inverter. Recorded x/y stereo with at4041 mics into a pmd661 recorder. Eqed in fabfilter, there used to be a sine beep at 15. 8khz, inaudible for many people but it would have been even more annoying for those who can still hear it.
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