Subj : Chirp Detector
To   : Ky Moffet
From : Barry Martin
Date : Fri Feb 18 2022 10:28:00


Hi Ky!
 >
 > Anyone have suggestions on how to locate the source for a soft and brief
 > sound I'm hearing up here?  Thinking microphone and Rapsberry Pi for the
 > hardware: move the mic closer or further to figure out the source.
 > ("Trick" is the streaming music and ambient noises.)
 KM> No idea, but I have a similar story...
 KM> Kept hearing backup beeps, like from a heavy truck. Very faint,
 KM> nowhere close. Could still hear 'em on the porch, a little
 KM> louder, but where?? No idea. Couldn't tell. 24 hours a day. Must

HaHa! That sounds like something that happened here!  I could hear a low
rumbling in the Living Room.  Computer in there is off; there is an audio
amp with a fan but that's off (checked with my hand for a breeze).  
Heard the noise for several days -- same level: constant low-level 
rumble. 

Finally had to go into the basement for something: ceiling fan had been 
left on in the room below the Living Room!  I was hearing the vibration!



 KM> Turns out it was Moonbase (DOOM computer) ... somehow the CPU
 KM> overheat alarm had gotten turned on, but it was so faint that it
 KM> didn't register as IN THE DAMN HOUSE, especially since it sorta
 KM> projected out the back of the box and through the wall (thus
 KM> louder on the porch than right next to it).


 KM> Turned off CPU overheat alarm in BIOS. No more beeps!!
 KM> Moonbase does not overheat, far from it. Dunno why the alarm
 KM> setting was on. Probably hadn't looked in the BIOS in ten years,
 KM> let alone fiddled with anything. Mind of its own? too many dead
 KM> hellspawn gumming up its brain??
 
Maybe during a boot the CPU reached an abnormally-low heat setting,
triggering the alarm.  I've notice this computer will heat up
immediately after a reboot and settle back to normal.  I'm thinking the
chassis fans shut off for a couple of seconds so the CPU one probably
does too, not dissipating the heat.

At least you noise was constant -- mine might not occur again for 20-30 
minutes!

 
                         ¯    BarryMartin3@    ®
                         ¯   @MyMetronet.NET   ®

.... I wanted to be a procrastinator, but kept putting it off.
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