audio frequency

American  

noun

Acoustics, Electronics.

1. a frequency between 15 Hz and 20,000 Hz, within the range of normally audible sound.

---

audio frequency British  

noun

1. a frequency in the range 20 hertz to 20 000 hertz. A sound wave of this frequency would be audible to the human ear

---

Etymology

Origin of audio frequency

First recorded in 1910–15

Example Sentences

A gap in the audio frequency data indicates that the sound has been edited.

From BBC • Mar. 25, 2024

Low-frequency infrasound, like EMFs, are all around us, and they can have a seemingly enigmatic effect on our minds and bodies as the audio frequency ranges below the normal human hearing range.

From Salon • Oct. 30, 2021

Set over the course of one night in 1950s New Mexico, the film follows two teenagers who notice an unusual audio frequency on the radio and take it upon themselves to investigate.

From Seattle Times • May 26, 2020

MODULATION, CHOPPER.—The modulation of radio frequency oscillations by a chopper which breaks up the sustained oscillations of a transmitter into audio frequency impulses.

From The Radio Amateur's Hand Book by Collins, A. Frederick (Archie Frederick)

Carrier.—A radio frequency wave modulated by an audio frequency wave which results in setting of three radio frequency waves.

From The Radio Amateur's Hand Book by Collins, A. Frederick (Archie Frederick)