noun Acoustics, Electronics.
a frequency between 15 Hz and 20,000 Hz, within the range of normally audible sound.
Origin of audio frequency
First recorded in 1910–15
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for audio frequency
Historical Examples of audio frequency
First I would learn to use it as an audio-frequency amplifier.
In the case of Fig. 94 we are amplifying the audio-frequency current.
Use your audio-frequency transformer the other way around so as to step up to the grid.
a frequency in the range 20 hertz to 20 000 hertz. A sound wave of this frequency would be audible to the human ear
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012