Location (find me)

within 2 blocks 1/2 mile 1 mile 2 miles 5 miles 10 miles 25 miles 50 miles 100 miles 200 miles

Minimum Age (Inclusive):

Max Age (Inclusive):

How much effort have you put into looking for the source of the sound?

Any A lot of effort Quite a bit of effort Some effort Very little

Gender:

Any Male Female

Please list any scientific or technical training you have.

What year did you start hearing the hum?

Any Before 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020

Are you still hearing it today?

Any Yes No Other

In which ear is it loudest?

Any Left ear Right ear Equal in both ears

Does the sound tend to start at a certain time of day? Explain.

Does the sound ever stop? Please tell us about this.:

Frequency match

(OPTIONAL TECHNICAL QUESTION) If you answered the previous question, if you kept the tone generator volume low enough and used high quality speakers or one headphone, did you notice any "beating" or pulsing as the tones got close? This is the same type of thing you hear when you tune a guitar by playing two strings at once. Please explain.

Please list symptoms, if any, caused by the sound (check all that apply)

Any
Ear discomfort (pain, fullness, throbbing)
Headache
Insomnia
Nausea
Sense of vibration
Anxiety
Other
None

If you shake your head very briefly, or exhale loudly, does the noise stop for about half a second and then quickly return?

Any Yes No Not sure

Where is it the loudest?:

Any Indoors Equal indoors and outdoors Outdoors

When is the sound the loudest?

Any During the day During the night Equal night and day

Which is your dominant hand?

Any I'm right-handed Left Ambidextrous (can use both equally well)

Have other people heard the same sound at the same time and in the same place as you?

Any Yes No Don't know

Will sounds like a bathroom fan or other background sounds mask the humming noise?

Any Yes No

Medical issues with your hearing:

Are you, or have you been in the past a regular user of Advil (Ibuprofen), Tylenol (Acetaminophen), or Aspirin (ASA)?

Any Yes No Prefer not to answer

Which of the following medications were you taking before the Hum appeared?

Any
Medications for stress
Sleeping pills
Medications for anxiety
None
Other

Have any of the following conditions been diagnosed or suspected in your parents, you, or siblings? Check all that apply. This information might be helpful, but of course this question is completely optional.

Any
ADHD (Attention Deficit - Hyperactivity Disorder)
Autistic Tendencies, including what was formerly known as "Asperger's".
Schizophrenia
None

Have you ever been diagnosed with vertigo or balance problems?

Any Yes No I'm sure I've had it but didn't go to the doctor

You would describe yourself as...

Any Slim Average A little bit overweight Obese

Please try to recall what antibiotics you took during the time the Hum appeared, and after.

Do you prefer low-calorie softdrinks or regular ones? Please estimate your consumption, in 330ml/11 fl.oz cans permonth.

Would you consider yourself sensitive to sounds in general?

Any Very much so. Not especially Yes Not at all

You live in ..

Any Stand alone house in the city or suburbs Apartment block, condo, or dormitory Townhouse House in an isolated location

Does the sound change at all with the weather? Explain.

Does the sound change at all with the seasons?

Have you noticed any changes in the sound after air travel or being in the mountains? Please explain.

Other cities you've heard it in:

Have you ever worked in loud environments such as construction, heavy industry, music performance and recording, and so on? Please explain.

Other information

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