The voice sounded vaguely familiar, yet it brought no immediate images to mind.

The old, buried man sat up and began talking in something that sounded vaguely like Spanish.

It sounded vaguely familiar, but he had other things to do than identify the voice.

She couldn't immediately place who this caller was, though he did sound vaguely familiar.

His name sounded vaguely familiar, as if he'd been in the news for something, but I couldn't place it.

The voice sounded vaguely familiar, somehow, but he couldn't place it.

The term sounded vaguely familiar, but he could not place it.

The way she said "good boy" sounded vaguely like his mother.

The name sounded vaguely familiar, but Ben wasn't sure in what context he knew it.

The melody sounded vaguely familiar, though she couldn't quite place where she'd heard it before.