This sentence is supposed to be ambiguous. However I cannot see the ambiguity.
"We heard Mr. Vaughn’s voice on the loudspeaker"
My interpretation is:
We: SUBJECT
Mr. Vaughn's voice: DO
On the loudspreaker: ADV.ADJUNT
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Sign up to join this communityThis sentence is supposed to be ambiguous. However I cannot see the ambiguity.
"We heard Mr. Vaughn’s voice on the loudspeaker"
My interpretation is:
We: SUBJECT
Mr. Vaughn's voice: DO
On the loudspreaker: ADV.ADJUNT
It's not ambiguous. I suppose you could go way out in left field and claim that you heard the voice while you were sitting on the loudspeaker, but that would be a stretch beyond ridiculous.
“We heard Mr. Vaughn over the megaphone”
“Mr. Vaughn’s voice” seems verbose, unless his voice is what’s in question, and not his message.
“Was Mr. Vaughn crying? We heard his voice...”
His voice can’t be “on” a loud speaker. A loud speaker could be any speaker that is loud, and could be any kind of speaker.
I see a lot of ambiguity.