I’m swamped with teaching right now and I wouldn’t mind passing on a task to somebody. If you know something about MySql and can do basic tasks with it, I need help tweaking a column or two in order to make the Google Forms input match the database that drives the Hum Map. Let me know if you can help. glen.macpherson@gmail.com
Home » Uncategorized » Looking for a last bit of technical help to finish a significant update to the Hum Map.
Looking for a last bit of technical help to finish a significant update to the Hum Map.
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World Hum Map and Database Project 
I guess I have no strong objections to the terminology “Low-Frequency Tinnitus” for our 30-100 Hz nemesis, AKA “the Hum”, discussed here on Glen’s site while using “High-Frequency Tinnitus” for the much more familiar 3000-8000 Hz (ordinary “ringing in the ear”); as long as we recognize that almost certainly the two are basically unrelated.
HFT is generally thought to be caused by spontaneous firings of errant hair cells of the cochlea (INNER ear). The cause of LFT is still uncertain, but may well be related to a (protective) mechanism of the boney links (hammer-anvil-stirrup) in the MIDDLE ear. Said mechanism being Automatic-Gain-Control-like (AGC), and is noted as a diagnostic interruption (silencing) of the Hum immediately in response to a head-shake (or other impulsive event) followed by a ramp back up that takes about ½ second. Such an interruption does NOT occur with ordinary eternally sourced sounds, or with HFT.
So LFT and HFT are not different versions of the same thing, but rather, different things.
Berne