I heard his footsteps behind me, at the back of the main reading room.
I'm sorry, people can't hear you at the back.
"I thought I heard something at the back of the room; like the light switch was there."
"You could hear this at the back of the mountains."
For a moment he heard the old man's voice at the back of his head.
Then he heard the breath catch at the back of her throat.
She pressed the button and heard the bell answer somewhere at the back of the station.
I heard voices at the back of the house, and footsteps in the hall.
He could hear Raj's amusement at the back of his mind.
Most opera houses are very big, and the singers need to be heard at the back.