Before revision: Apart from vocoders, several other methods of producing variations on this effect include: the Sonovox, Talk box, and Auto-Tune, A sample of Auto-Tune effect (a.k.a.
After revision: Apart from vocoders, several other methods of producing variations on this effect include: the Sonovox, Talk box, Auto-Tune, A sample of Auto-Tune effect (a.k.a.