World Hum Map Survey Form (2.0)
. SUBMIT THIS FORM ONLY ONCE! YOU MAY NEED TO WAIT SEVERAL MONTHS FOR YOUR DATA TO APPEAR ON THE HUM MAP. ALL YOUR ANSWERS WILL BE ANONYMOUS. You can contact Dr. MacPherson at
What is your age? (Enter a number only)
Please describe the sound
How much effort have you put into looking for the source of the sound?
Quite a bit of effort
A lot of effort
What is your gender?
Please list any scientific or technical training you have.
Tell us where you hear the Hum (don't use your home address). Give country, city, and Postal Code/Zip Code.
What year did you first notice the Hum?
Are you still hearing it today?
In which ear is it loudest?
Equal in both ears
Does the sound tend to start at a certain time of day? Explain.
Does the sound ever stop for minutes, hours, or days, or for longer periods? Please explain.
Please take a few moments to go here:
and adjust the frequency until it matches the tone of the Hum you here, and report that here. THIS IS EXTREMELY USEFUL INFORMATION.
(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)
Ear discomfort (pain, fullness, throbbing)
Sense of vibration
If you shake your head very briefly, or exhale loudly, does the noise stop for about half a second and then quickly return?
Where is the sound loudest?
Equal indoors and outdoors
When is the sound the loudest?
During the day
During the night
Equal night and day
Which is your strong hand?
I'm ambidextrous (I can use both hands equally well)
Have other people heard the same sound at the same time and in the same place as you?
Will sounds like a bathroom fan or other background sounds mask the humming noise?
Please state any medical conditions with your hearing, including Tinnitus. If you have tinnitus, please list the type if you know it. If you've had a hearing test, it would be very helpful if you included the specific results here.
Are you, or have you been in the past a regular user of Advil (Ibuprofen), Tylenol (Acetaminophen), or Aspirin (ASA)?
Prefer not to answer
Which of the following medications were you taking before the Hum appeared?
Medications for stress
Medications for anxiety
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.
ADHD (Attention Deficit - Hyperactivity Disorder)
Autistic Tendencies, including what was formerly known as "Asperger's".
None of the above
Prefer not to answer
Have you ever been diagnosed with vertigo or balance problems?
I'm sure I've had it but didn't go to the doctor
You would describe yourself as...
A little bit overweight
Prefer not to answer
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?
Very much so.
Not at all
You live in ..
Stand alone house in the city or suburbs
Apartment block, condo, or dormitory
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 heard the noise in other places, cities, countries? Explain.
Have you ever worked in loud environments such as construction, heavy industry, music performance and recording, and so on? Please explain.
Did we forget to ask anything? Is there anything you'd like to add?
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