He was snoring intermittently and the sounds were hardly audible.

Her words were low, hardly audible in the ripping wind.

It was hardly audible through the tumult of the roaring whistle.

"Very happy," he said at last, his voice hardly audible.

Then there was a sound like a thunk, hardly audible among the other sounds of battle.

It was a laugh - hardly audible, but mocking in its tone.

When he spoke, he was out of breath, hardly audible.

He slept soundly, his breathing hardly audible, and without moving.

Anna let out a tiny sigh that was hardly audible.

When the girl finally spoke, her body was shaking, her voice hardly audible.