Wiktionary
n. A frequency, or range of frequencies of sound waves, that are audible
WordNet
n. an audible acoustic wave frequency [syn: audio]
Wikipedia
An audio frequency (abbreviation: AF) or audible frequency is characterized as a periodic vibration whose frequency is audible to the average human. The SI unit of audio frequency is the hertz (Hz). It is the property of sound that most determines pitch.
The generally accepted standard range of audible frequencies is 20 to 20,000 Hz, although the range of frequencies individuals hear is greatly influenced by environmental factors. Frequencies below 20 Hz are generally felt rather than heard, assuming the amplitude of the vibration is great enough. Frequencies above 20,000 Hz can sometimes be sensed by young people. High frequencies are the first to be affected by hearing loss due to age and/or prolonged exposure to very loud noises.
Usage examples of "audio frequency".
But we are modulating it to give a carrier wave in radio frequency, then modulating that into audio frequency-and controlling that by a piano.
The basic form of dolphin/dolphin communication in this view would be a sort of aural onomatopoeia, a drawing of audio frequency pictures- in this case, caricatures of a shark.
You adjust the speed to match your subjective time rate, or a little faster, and use an audio frequency step-down to let you hear what is being said.
Because All The Bugs Operated On The Same Very Narrow Audio Frequency, And Could Only Access One At A Time.
From the audio frequency, he heard a roar of road noise and then rock music.