Pitch manipulation refers to the process of altering the perceived frequency of a sound. This technique is commonly used in music production, where artists and producers adjust the pitch of vocals or instruments to create harmony or achieve a desired effect. For example, a singer might have their voice pitched up or down to match the key of a song, enhancing its overall sound. In addition to music, pitch manipulation is also utilized in various fields such as film and video games. Sound designers may change the pitch of sound effects to evoke specific emotions or fit the atmosphere of a scene. This versatility makes pitch manipulation a valuable tool in both creative and technical applications.