Audio frequency refers to the range of sound frequencies that the human ear can typically hear, which is generally from about 20 hertz (Hz) to 20,000 hertz (20 kilohertz, or kHz). These frequencies encompass the sounds typically encountered in music and natural sounds. Here’s a breakdown of the audio frequency spectrum: - **Infrasound**: Frequencies below 20 Hz, which are generally inaudible to humans but can be felt as vibrations.
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