I've been getting the humm for many years now.
Sounds like an industrial fan, diesel generator, or sometimes a cement mixer outside...... droning on and on.
Can't hear it all the time, but have noted on several instances it reaches an almost intolerable high just before an earthquake, then goes completely silent.
Fortunately, quakes are a rarity down here.
Last edited by d@rk51d3; 03-17-24 at 07:34 PM.
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