"And have a mature voice too, of course."

"Well, I know it's quite late," I said, in this very mature voice and all.

I had a mature voice at a young age.

He spoke in a sweet, mature voice, putting down the book.

"Please state identity and authorization code," the computer responded in its mature, female voice.

Because of her mature voice, she often plays strong, beautiful women.

"The man had a very mature, you might say professional, voice," the judge said.

Best of all is Frame's now beautifully mature voice.

Among other things, this leads to the mature voice being better suited to the rigors of opera.

They featured Chi with a slightly more mature voice.