ventriloquism

The art of projecting one’s voice so that it seems to come from another source, as from a wooden figure.

The act, art, or practice of speaking or uttering sounds in such a manner that the voice appears to come, not from the person speaking, but from a distance, as from the opposite side of the room or from the Cellar.

The act, art, or practice of speaking in such a manner that the voice appears to come, not from the person speaking, but from some other source, as from a dummy held by the ventriloquist, from the opposite side of the room, from the cellar, etc.

The art of projecting one’s voice without moving the lips so that it appears to come from another source, such as a dummy.

the art of projecting your voice so that it seems to come from another source (as from a ventriloquist’s dummy)