The phrase "too high for human ears or hearing" can be transcribed using the International Phonetic Alphabet (IPA) as /tu haɪ fɔr hjumən ɪrz ɔr hɪrɪŋ/. The "oo" in "too" is pronounced as /u/, the "h" in "high" is aspirated as /h/, and the "a" in "ears" is pronounced as the short /ɛ/ sound. The final "ing" in "hearing" is spelled with the velar nasal /ŋ/, indicating that the sound is produced in the back of the mouth.
"Too high for human ears or hearing" refers to sounds that are at frequencies beyond the audible range of most humans. The term implies that the sound wave frequencies are higher than what the capabilities of the human ear can perceive.
The auditory range of humans typically spans from 20 Hz to 20,000 Hz, with variations depending on a person's age and overall hearing health. Sound frequencies above 20,000 Hz are considered ultrasonic or inaudible to the average human ear. Therefore, when something is described as "too high for human ears or hearing," it implies that the sound is happening at a frequency above the upper threshold of human hearing capability.
Sounds that fall into this category may include certain ultrasonic sounds emitted by animals like bats and dolphins, as well as electronic signals like ultrasonic alarms or devices used in scientific applications. These sounds can have practical applications in fields such as medical imaging, pest control, and ultrasonic cleaning. However, due to their inaudibility to humans, special equipment or recording devices are required to detect and analyze them. Ultrasonic frequencies are also sometimes utilized for communication and data transmission between devices without interfering with human communication systems.