ULTRASOUND IS A VERY HIGH FREQUENCY SOUND
CHECK YOUR LIVING AREA
“If I don’t see, hear or feel it, it doesn’t apply to me,” perhaps, but why are you afraid of getting poisoned with carbon monoxide (CO) gas??? It is invisible, it has no smell, it has no taste, but if you get poisoned, you can say goodbye to this world.
The most dangerous things are those that we cannot see, feel or be aware of. This is because we cannot detect or recognize them, therefore, we cannot protect ourselves from them..
Ultrasound NOISE cannot be heard by the ear, but it CAN significantly affects a person’s well-being and health.
On average, an adult hears from 20 Hz – 16’000 Hz. Relatively, from lower sounding to more subtle. It’s like the full range of piano notes, plus 1 more octave (12 keys) that pianos don’t have because they don’t usually make such fine strings. All sounds higher than audible are called ultrasound. Small children can hear up to 26’000 Hz or even higher. But the world of sounds does not end there. Dolphins, for example, can hear up to 150’000 Hz.
If there was calm, pleasant music playing in the ultrasound, you simply wouldn’t hear it, but what about the technical noise? In today’s electronic age, we use many devices. Not all of them have been tested and checked against noise emitted by technical components. Many technical devices emit a very sharp noise in the frequency range of 20KHz or even higher. It is similar to a subtle squeaking or beeping that we cannot hear with our ears. It can disturb people, cause unpleasant sensations, headaches, as well as other unwanted symptoms.
The most dangerous are electric mosquito repellers, animal repellers, ultrasonic air humidifiers. They emit a very strong high-frequency chirp. Smoke detectors, computers, even cell phone chargers can also cause this noise. In short, it can be any device connected to voltage. Many animals hear these sounds and run away from them. Of course! They recognize them and understand that they don’t need it.
For peace of mind, we highly recommend checking the ultrasound background of your living and working area.
To check this, we recommend using high-sensitivity professional audio equipment. This can be done by any music engineer who has access to portable sensitive high-end audio equipment. Mostly, we have noticed such beeping in the range of 16’000 – 32’000 Hz.
You can check it by yourself using free applications on modern mobile phones. Such a check will not be so accurate, but it will be quite believable. We described these methods below.
In special cases, we perform an inspection of the living and working area by identifying the source of ultrasound in it. Contact us for details.
ULTRASOUND SAMPLE
ATTENTION – CAN CAUSE UNPLEASANT FEELINGS !
Click on Images to open original size
THE FINE LINE IN THE 20 KHz RANGE IS THE ULTRASONIC BEEP
ZOOMED IN
VOLUME SIMILAR TO AIR VENTILATION HEARD IN THE ROOM
NO BEEP IS HEARD – ONLY FANS ARE HEARD
REDUCED FREQUENCY TO BE HEARD – FROM 20’000 Hz to 300 Hz (-36c -36c)
REDUCED FREQUENCY TO BE HEARD – FROM 20’000 Hz to 300 Hz (-36c -36c)
MORE REDUCED FREQUENCY TO BE HEARD – FROM 20’000 Hz to 40 Hz (-36c -36c -36c)
MORE REDUCED FREQUENCY TO BE HEARD – FROM 20’000 Hz to 40 Hz (-36c -36c -36c)
Check ultrasound by yourself
The application “Spectroid” on the smartphone “HUAWEI P20 PRO” was used for testing. Also, for testing, you can use other, similar applications or smartphones.
In left side you see hearable sound noise (from computer, monitor and impulse power supply), but in right side you can see ultrasound noise. It is especially possible to detect noise in the range of 20’238 Hertz (-48 decibels).
If you find one or more of these high-frequency sound peaks, check each device separately and determine the origin of the sound. If possible, isolate the noise source or change to another alternative. (For example, put the computer in another room or change the power supply. This is all your initiative.)
Keep in mind that mobile phones and tablets can record high-frequency sound, on average, up to 25 kHz. This is enough for most cases. To check higher frequencies, more sensitive microphones and audio equipment is needed.
Take care by yourself of your own health!
