audible range; hearing range
Technical term for the range of frequencies or distances within which a sound can be heard by humans or animals.
The human audible range is approximately from 20 Hz to 20 kHz.
This sound is beyond the audible range, so we cannot hear it.
Compound of 可聴 (kachō, 'audible') and 域 (iki, 'range, region'). The exact historical derivation is uncertain, but the word follows a common technical pattern.