When is the sound the loudest?

Any During the day During the night Equal night and day

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

In which ear is it loudest?

Any Left ear Right ear Equal in both ears

Which is your dominant hand

Any Right Left Ambidextrous (can use both well)

Gender:

Any Male Female

Minimum Age (Inclusive):

Max Age (Inclusive):

Other cities you've heard it in:

Medical issues with your hearing:

Other information

Frequency match

Does the sound ever "pulse" or "throb"?:

Any Between once and twice per second Varies a lot Steady tone/hum Around once per second on average More than twice per second

Where is it the loudest?:

Any In house main floor In house upstairs Inside a stopped car Outside

When did you start hearing it?

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

Does your home have a "smart meter"?

Any No Yes Not Sure

Please list any unusual geographic, geological, or other features in your area:

Medical complaints:

What direction does the Hum seem to come from? (If any):

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

Please list any scientific or technical training you have.

Are you still hearing it today?

Any Yes No Other

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

(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

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

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.

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