Question

sound
frequency: Heartz : Sound level​

Answer 1

Answer:

sound level : decibel

Answer 2

Answer:

dB(decibel) and frequency are terms to describe sound level and the number of cycles of a sound wave in one second.

Explanation:

Under ideal laboratory conditions, humans can hear sound as low as 12 Hz and as high as 28 kHz, though the threshold increases sharply at 15 kHz in adults, corresponding to the last auditory channel of the cochlea. The human auditory system is most sensitive to frequencies between 2,000 and 5,000 Hz