backseatjuan
Banned
There will be moments in your life where you will have noise situations against which neither the landlord nor homeowners association nor police can help. For example. You are on quarantine from a dangerous epidemic and upstairs there are kids or dogs, or both. You can not sleep and lack of sleep is affecting your melatonin levels which directly affects your immune system, which in turn is endangering your life.
You can solve the situation easily with ultrasound.
Ultrasound is sound above 20,000 Hz.
You will need:
a) amplified speakers
b) this online tone generator
c) the following information
Adult males hear sounds up to 15,000 Hz
Adult females hear sounds up to 17,000 Hz
Teens can hear sounds up to 18,000 Hz
Children can hear sounds up to 24,000 Hz
Babies can hear sounds up to 32,000 Hz
Dogs and cats can hear sounds up to 50,000 Hz
It is best to use square or sawtooth wave forms.
Mobile phone apps can hear and visualize sounds up to 22,000 Hz
This means, because of the ability of anyone with mobile phone to detect noise, we can not go lower than 22,000 Hz, if we do we are going to be detected.
However, there is only one target audience which will need sounds bellow 22,000 Hz (16,000 Hz or 17,500 Hz) that is people with retardation and down syndrome. Otherwise, for children and babies sounds above 22,000 Hz work well. For babies 27,000 Hz is especially good. For dogs 23,000 Hz should do.
Effect is the following. Baby or child shuts up and stops making noise when you play this tones. Dogs stop barking. You get to sleep, the world is saved for now.
You can solve the situation easily with ultrasound.
Ultrasound is sound above 20,000 Hz.
You will need:
a) amplified speakers
b) this online tone generator
c) the following information
Adult males hear sounds up to 15,000 Hz
Adult females hear sounds up to 17,000 Hz
Teens can hear sounds up to 18,000 Hz
Children can hear sounds up to 24,000 Hz
Babies can hear sounds up to 32,000 Hz
Dogs and cats can hear sounds up to 50,000 Hz
It is best to use square or sawtooth wave forms.
Mobile phone apps can hear and visualize sounds up to 22,000 Hz
This means, because of the ability of anyone with mobile phone to detect noise, we can not go lower than 22,000 Hz, if we do we are going to be detected.
However, there is only one target audience which will need sounds bellow 22,000 Hz (16,000 Hz or 17,500 Hz) that is people with retardation and down syndrome. Otherwise, for children and babies sounds above 22,000 Hz work well. For babies 27,000 Hz is especially good. For dogs 23,000 Hz should do.
Effect is the following. Baby or child shuts up and stops making noise when you play this tones. Dogs stop barking. You get to sleep, the world is saved for now.