If we see a speaker mouthing day while hearing someone else saying may,we may perceive a third syllable bay that blends both inputs.This phenomenon is known as

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This phenomenon is known as the McGurk effect, which is a perceptual phenomenon that occurs when the auditory component of one sound is paired with the visual component of another sound, leading to a third sound perception that is not actually present in either the auditory or visual input alone.

If We See a Speaker Mouthing Day While Hearing Someone