"Cover your ears," Dinah suggests as an answer, and steps forward away from them.

She takes a breath, hoping she doesn't seem nervous. Then, starting quiet, she finds a note just within the upper range of human hearing.

"EEEEEEEEEEEEEEEEEEEEEEEEE"

Her description of glass shattering from a soprano wasn't accurate. This is a fully fledged sonic weapon, and the rubble blocking the way flies back like she's hit it with a demolition ball.