A voice changer application alters the sound of a person's voice in real-time or during playback. It is used to modify the pitch, tone, and timbre of the voice, allowing users to sound like different characters, creatures, or even gender-swapped versions of themselves.

Voice changers are popular in various contexts, including entertainment, gaming, and online communication. They are commonly used by content creators, streamers, pranksters, and individuals who want to add a fun and creative element to their audio content or disguise their voice for privacy reasons.

The technology behind voice changers can vary, but many of them work by manipulating the frequency and amplitude of the voice signal, transforming it into the desired output. Some voice changers offer a range of preset voices and effects, while others provide customizable settings for more precise modifications.

It's important to note that while voice changers can be entertaining and enjoyable, they should always be used responsibly and ethically to avoid misrepresentation or harm to others.