I shared a machine room at work for a couple years, the other guy couldn't
hear the screech some of the servers make when only one power supply was
plugged in but it drove me up the wall.A couple years ago he moved to a
different position so its my show now and the first thing I did was work out
how to plug in the second power supply on each server...
-Curt
On Tuesday, December 24, 2019, 3:18:53 PM EST, Peter Frederick via Mercedes
<mercedes@okiebenz.com> wrote:
22 kHz. No one can hear 222kHz!
Hearing like that has made for an interesting life. I used to shut off the
mower and go in the house to answer the phone in graduate school, drove my
housemate nuts (she was partially deaf and the phone had an extra loud ringer,
but it was still a mechanical bell). Other than the fact it was actually
ringing she would have accused me of making things up.
Ultrasonic alarms are not ultrasonic for me, they used to run around 20kHz.
Loud bastards.
I hear all sorts of things at work no one else does, too -- I can tell when one
of my HPLC pumps isn't working right by the "screeech" it makes, when the
pressure is low or oscillating, the sound changes on the fill (fast) stroke. I
can also hear some sort of interference pattern in front of one of the
computers, get a a "ning ning ning" ringing sound similar to the pumps on the
HPLC, but they aren't running.
Over driven transistor amps have been known to run me out of the room with my
hands over my ears -- clipping causes very loud transient harmonics in that
situation, and while it wasn't bothering anyone else, it was so freaking loud
it was painful to me. The guys on the dorm floor thought I hated rock and
roll, especially Yes. Not my favorite music for sure, but it's unbearable with
the ear-spitting high frequency noise.
I also, sadly, notice almost every off note in a musical performance. I can't
produce music worth a hoot, no sense of pitch to speak of, but I can sure hear
a sour note. Takes a lot of the enjoyment out of it.
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