His voice was rising just a bit with each word.

His voice rose despite the effort to keep it level.

She knew her voice was rising but couldn't help it.

When her voice rose this time, she couldn't control it.

His voice rose now as if he couldn't quiet it.

When none came, he went on, his voice rising in the process.

From the other side, their mother's voice rose in the darkness.

Her voice rose at the end because she was about to cry.

As if in answer to the question, a booming voice rose about them.

Scott's voice rose at the end of her thought, as if she was asking a question.