Re:What is the mysterious 'global Hum' and is it simply nois...
by yetihehe on Monday October 12, 2020 @08:40AM
(#24753788)
> Now - I have also heard the associated "Hummadruz" too - which is more of an insect / bee drone.
I hate mosquitoes, but mainly their sound. Sometimes when it's pretty silent, I can hear mosquito like it was in a room (with pitch varied like real mosquitoes) but it's entirely in my head (like tinnitus, I have it sometimes when air pressure changes), I found out when I've tried to cover my ears and sound didn't stop. I've already already learned to distinguish between real ones, imaginary ones and TIR's on nearby road (which simetimes sound similar).
Re:What is the mysterious 'global Hum' and is it simply nois...
by lph on Sunday October 11, 2020 @02:53PM
(#24748088)
I started hearing a hum in March, coinciding perfectly with my shift to working from home during lockdown. Glen MacPherson (who runs the hum database) has also reported a surge in hum reports.
I've heard the hum many times in different parts of the UK and its usually loudest on bank holidays - that is, the days when things are most quiet. I think I'm hearing my own blood pumping away - a kind of merged drum beat.
Now - I have also heard the associated "Hummadruz" too - which is more of an insect / bee drone. I recorded it on my camera but the audio couldn't pick it up. However I was walking though a field where there were many foxgloves, dry stone walls and bees around in high summer. Non hive bees will often live and buzz in their holes, so the hummadruz could be literally insects.
The low bassy drone in both the hum and the hummadruz makes it hard to pin point the direction - it's why you only need one bass speaker in most hi fi systems.