As he spoke the volume of his voice dropped slightly but definitely, three times.

The volume of his voice clearly said he was still irked.

"Pretty busy," I said, trying to match the volume of his voice for some reason.

The volume of Alexander's voice rose to a near shout.

Anderson said, the volume of his voice rising for the first time.

Lowell surprised himself with the volume and force of his own voice.

Still stuck on the floor, I trace the volume of his voice.

I exclaimed, then was startled by the volume of my voice.

They do not recognize the need to change the volume of their voice in different settings.

He made no attempt to conceal the volume of his voice.