audio frequency

noun

, Acoustics, Electronics.

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

audio frequency

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

Word History and Origins

Origin of audio frequency¹

First recorded in 1910–15

Example Sentences

Garmin’s Descent T1 transmitter taps those audio frequencies, allowing groups of divers to keep closer tabs on one another.

From Popular-Science

First I would learn to use it as an audio-frequency amplifier.

From Project Gutenberg

In the case of Fig. 94 we are amplifying the audio-frequency current.

From Project Gutenberg

Then you will have the right equipment when you come to make a two-stage audio-frequency amplifier.

From Project Gutenberg

Use your audio-frequency transformer the other way around so as to step up to the grid.

From Project Gutenberg