AF or audio frequency is the term used to describe alternating current at a frequency that, when used with a transducer, can produce soundwaves within the range of human hearing. This frequency range is usually between 20 and 20,000 Hz.
FAQs on Audio Frequency (AF)
What does Audio Frequency (AF) mean?
Audio Frequency, or AF, refers to the alternating current at a frequency that, upon application to a transducer like a loudspeaker or headset, produces acoustic waves within the range of human hearing. Typically, the AF frequency range is believed to be between 20 and 20,000 Hz.
What is the significance of AF?
AF is extremely important in audio communication, where it is used for recording, playback, and transmission. Moreover, it is used for a variety of purposes, including radio, phone, and music applications.
What is the difference between AF and RF (Radio Frequency)?
The main difference between AF and RF is that AF produces audible sound waves that can be heard by humans, while RF produces electromagnetic waves that are invisible to the human eye and cannot be heard. RF is usually used for radio communication and is measured in megahertz (MHz) or gigahertz (GHz), whereas AF is measured in hertz (Hz).
Why is AF measured in Hertz?
AF is measured in Hertz (Hz) because it is the unit of measurement for frequency, including sound frequency. It refers to the number of times that an alternating current changes direction per second. The higher the frequency, the higher the pitch of the sound that is produced.
What is the typical range of AF?
The typical range of AF is believed to be between 20 and 20,000 Hz, which is the range of frequencies that humans can hear. However, the exact range may vary depending on the individual and their age. As people get older, their hearing range tends to decline, especially at the higher frequencies.
The end result
In The end result, Audio Frequency (AF) refers to alternating current at a frequency that can produce acoustic waves within the range of human hearing. It is a critical component of audio communication, used for recording, playback, and transmission, as well as for phone, music, and radio applications. AF is measured in hertz (Hz), with a typical range of 20 to 20,000 Hz. Understanding AF and its applications is essential for anyone interested in audio technology or communication.