"Rapper/singer T-Pain's use of Auto-Tune is a manipulation of what code of nonverbal communication?"

Rapper/singer T-Pain's use of Auto-Tune is a manipulation of vocalics.

Explanation:

When it comes to nonverbal communication, vocalics can be defined as everything about the voice that is unrelated to the words we say. It includes pitch, tone, volume, all the ways that help us communicate and that affect the message we convey. If a person uses auto-tune, he is manipulating vocalics. Auto-tune is an audio processor used with the intention of correcting /disguising off-key inaccuracies. Therefore, what we hear is not really what the singer or rapper effectively sang or rapped. It is a distortion, a modulation of their pitch and tone.

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is that the whole question?