On the Audio Frequency?

Audio frequency is a frequency that corresponds to audible sound waves, between 20 Hz and 20 kHz. As volume level is decreased across the audio frequency band, the ear perceives the lows and highs to drop more than the mids. The attenuation is almost constant over the whole audio frequency range.

What is the meaning of audio frequency?

An audio frequency or audible frequency (AF) is a periodic vibration whose frequency is in the band audible to the average human, the human hearing range. The SI unit of frequency is the hertz (Hz). It is the property of sound that most determines pitch.

What does 500Hz mean?

Frequency of Sound

Every sound has a frequency, commonly referred to as its “pitch”, which is measured in Hertz (Hz). Normal human hearing can detect a wide range of frequencies, from around 20Hz to 20,000Hz. Sounds below 500Hz are considered to be “low frequency” sounds – like an animal's growl or rolling thunder.