infrasonic
Infrasonic signals, which can cause excessive driver excursion, and improves the speaker's response across the operating range.
Sound below about 20 Hertz (20 cycles per second) is considered infrasonic. A link can be found below.
Sound waves with frequencies below 20hertz are called infrasonic, while those with frequencies above20000 hertz are called ultrasonic
sound waves with frequencies 20 hertz or lower are infrasonic and waves above 20,000hertz are ultra sonic!
So that you can have fun in the water.
infrasonic
So that you can have fun in the water.
Animals that can hear infrasonic sounds are; frogs snakes ants dogs fishes whales beetles pigeons Usally, small animals can hear infrasonic sounds because they catches low frequency sound which is less than 20 Hz, especially insects. You may have observed that even if you walk very softly on the floor, animals like dogs feels your coming because they can hear infrasonic sounds.
With special technology, yes
Elephants, Thunder, Whales
Infrared is a type of electromagnetic wave (invisible light), while infrasonic is a type of sound which have frequencies less than the audible range (20 Hz -20kHz).