MY FAMILY CAN'T SLEEP DUE TO ULTRASOUND NOISE
tech
upstairs of our house. On account of gross violations in the Rental
Agreement and damage to property by a tenant we gave a notice to vacate
and got the tenant out. One of the reasons we got this tenant out was
because we kept hearing some weird high pitch noise at night and no one
in my family could sleep properly for about 5 months. After this tenant
was gone we were able to sleep well. We had rented the apartment to
another tenant. For the first two months, all was well and then this
weird high pitch noise problem came back and none of my family could
sleep during any given night. We called the police regarding the noise
problem but they were not of much help. What could we do to prevent
this nuisance and harassment.
It seems that the frequency of this noise is around 20 kHz and is of
varying type, which I found out by sampling with wide-band microphone.
We had "warm nights" and that went away when we installed aluminum foil
all over the ceiling. But the high pitch noise is still there causing
sleep deprivation There are no defective transformers, no leaky
boilers, no sonar equipment industries, or ultrasonic security systems
in the neighborhood. Its just a tenant living on top of us causing this
nuisance. I need help in this regard.
My family consists of decent law abiding citizens and the only thing we
had done were advises to tenants to abide with the rules and
regulations specified in the Rental Agreement and whenever there is a
breech, we call them to bring this to their attention. Now, we can't do
it so as we don't have much strength to argue with them due to sleep
deprivation by ultra sound or Super sonic noise at night.
I would greatly appreciate if anyone could tell me how to nullify or
eliminate this nuisance at night. I heard of Ultra sound jammer by
talking to a dealer in ultrasound products but they are expensive and
beyond our financial capacity. Someone told me to install plastic sheet
on the ceiling or sound proof it with a drop ceiling. I would like to
find out what is the practical method to eliminate this strange weird
harassment.
Tech