Voloco applies a hard-quantized pitch correction automatically based on the key and scale you select. It also includes built-in presets for harmonization and vocoder effects. waves tune realtime free better

MAutoPitch includes standard speed, detune, and depth controls. Crucially, it features a Formant shift knob. Formant shifting allows you to change the perceived gender or deepness of a voice without changing its pitch. and depth controls. Crucially