Pitch shifting is a sound processing technique that alters the perceived pitch of an audio signal without changing its tempo. This is commonly used in music production to adjust the pitch of vocals or instruments, allowing for creative effects or corrections. The process can be achieved through various software tools and hardware devices, which manipulate the frequency of the sound waves. Digital Audio Workstations (DAWs) often include pitch shifting features, enabling musicians and producers to experiment with different tonalities and harmonies in their compositions.