The TC Helicon VoiceTone C1 is part of the voice tone range, which consists of Vocal Harmonizer Pedals such as the VoiceTone H1 and Vocal Reverb Pedals such as the Voicetone R1. The VoiceTone C1 is dedicated entirely to vocal pitch correction. The TC Helicon live autotune pedal has three rotary knobs on the front, controlling the ‘key’, ‘severity of tuning’ and ‘gender’.
The key refers to the musical key that the song is being performed in. The VoiceTone C1 also provides a CH option, which allows the user to plug a guitar/piano in (via 1/4” jack) and dictate the vocal key from the secondary input.
This is especially useful for songs which include key changes, since a song may change from key C to D, this means that the C1 would pick up the key change from the chords of the secondary instrument and make the appropriate pitch correction adjustments.
Finally, the C1 can be integrated with the TC-Helicon MP-75/76 microphone, the advantage of using this microphone is that it has a built-in control switch button, which remotely turns the VoiceTone effect pedals on/off. This means that you’re not restricted to one area of the stage, which is excellent for singers who are playing without an instrument.