


Current affairs television shows and documentaries will sometimes employ the use of voice changers to disguise the voice of someone who wants to remain anonymous.Voice changers can be seen in various movies, including Scream, Saw, Super Troopers, Steel and a Talkboy voice changer was used in Home Alone 2: Lost in New York." Voice cloning" software can mimic the sound of a specific person's voice based on recordings of that voice. The results of voice changing through software are quite impressive and satisfactory. The pitch plays an important role from changing a male voice into female voice, and vice versa. Most algorithms modify the voice by changing the amplitude, pitch and tone of the voice. There is a plethora of techniques that modify the voice by using different algorithms. Nowadays, software implementations are very common. More sophisticated voice changers have different levels of various distortion effects variable by faders.

There are low-priced, small lithium battery-powered voice changers that are used between a phone's mouthpiece and the user's mouth. The earliest voice changers were electronic devices usually used over the telephone for the purpose of disguise. A kazoo or a didgeridoo can be used as a makeshift voice changer, though it can be difficult to understand what the person is trying to say. The term voice changer (also known as voice enhancer) refers to a device which can change the tone or pitch of or add distortion to the user's voice, or a combination and vary greatly in price and sophistication.

Hardware device or software which changes the pitch or timbre of the user's voice
