The ability to alter the perceived highness or lowness of a sound, as found within recordings hosted on a popular video-sharing platform, is a functional feature in certain audio editing tools. As an example, a user might implement such a function to make a voice in a recording sound deeper or higher.
Such modifications can serve multiple purposes. These adjustments can correct instances where the original recording contains audio that is too high-pitched or too low. Moreover, such capabilities can be applied for creative purposes, such as for character voice effects or to avoid potential copyright detection algorithms. The capacity to manipulate sound in this fashion has grown from specialized audio engineering tools to become increasingly accessible in more mainstream editing software.