Mysterious Sounds

CSTI acoustics has experience with “mysterious sounds” heard at residences. These are sounds that are only faintly audible with a source that is difficult or impossible to identify. We have spoken to other consultants about these types of sounds and written a paper on the subject. Here is a link to our latest version of the paper: Mysterious Sounds.

Here are some other useful links:

RadioLab “Earworms

The Hum


The American Tinnitus Association (ATA)

Tinnitus Talk Support Forum

HealthBoards for Inner Ear Disorders

Examples of different frequencies:

Examples of very low frequencies:

If you have information on this type of problem that you would like to share, please fill out the relevant information below.

Information Type *
Confidentiality *
If there are any specific parts of your provided information that you wish to keep confidential that are not essential to your point, please feel free to omit them from your submission entirely. Alternatively, if you want to provide information to us, but not to the public, then indicate what we should not share by checking the appropriate box below.
Phone Number
Phone Number
Please be as specific or as general as you desire, from a state to a street address.
Type of sound
Has the source of the sound been found?
Please write up the details below, and thank you for your assistance!

You can also submit files, photographs, recordings, etc. to