Is there any method to hear ultra or low frequency sound?

Question

IF THERE IS,WHICH DEVICE IS USED 4 THAT?

Answer 1

A transducer is a device that either picks up sound and converts it to electronic signals, or produces sound from electronic signals. A simple transducer would be a microphone (converts sound to electronic signals) or a loudspeaker (converts electronic signals to sound).

A transducer can be designed to pick up any kind of vibration or sound wave, regardless of the frequency. And, transducers are usually designed to detect or generate a specific frequency. Hence a speaker system that has woofers for low frequencies and tweeters for high frequencies.

All transducers work under a similar principal: the electrical signal causes some kind of vibration in an electromechanical mechanism at the frequency of the signal, which causes sound waves at that frequency to be propagated into the air. Or, the sound waves in the air move some electromechanical mechanism that converts the sound waves to an electrical signal at that frequency.

Once you convert a sound wave into an electrical signal - even if it is outside of the audible range for humans (20 Hz to 20kHz) - you can manipulate the signal frequency (multiply low frequencies or divide high frequencies) to bring them into the audible range.

Answer 2

Do you mean "the brown be conscious"? LFO ( Low Frequency Oscillation) could reason the sensation of anticipation and soreness as a results of vibration or the easy worry of a heart attack or puking brought about by the vibration. No, I even have not heard of this attempt.

Answer 3

Your ears can only hear as low as 20hz (20 cycles per second) Any lower would require certain test equipment to detect it.