Analog audio refers to sound that is recorded and played back in a continuous wave form. This method captures the full range of sound frequencies, allowing for a more natural and warm sound quality. Common formats of analog audio include vinyl records, cassette tapes, and 8-track tapes. In analog audio systems, sound waves are converted into electrical signals that vary continuously. These signals are then stored on physical media, such as magnetic tape or grooves on a record. Unlike digital audio, which samples sound at discrete intervals, analog audio maintains a continuous representation of the original sound.