The pitch control on a compact disc player is a non-standard function that allows you to manipulate the pitch and tone of the music that you are listening to.
Pitch
Pitch is one of the basic qualities of musical tones. It is the frequency at which your ear perceives sound waves in the air, and it is measured in hertz. Higher pitches mean that sound waves are hitting your ear more frequently, while lower pitches mean that sound waves are hitting your ear less frequently.
Function
The pitch control on a CD player (or any other audio device) allows the user to change the speed of the spinning CD from the default setting to a faster or slower speed. This will increase or decrease the rate at which the CD player will read the CD, which makes the music sound higher or lower, respectively.
Uses
The pitch control function has limited uses on a personal CD player, since most people don't want to change the pitch of the music they're listening to. However, the pitch control function is extremely useful to disc jockeys when they are trying to slow down or hurry up the beat of one song to match it with the beat of another song.
Tags: pitch control, sound waves, hitting your, mean that, mean that sound