I was glad that Jan couldn't hear my voice crack with panic.

"There is a stand of pines not far ahead," he told me; pain made his voice crack.

The phone connection wasn't the best, but I could hear his voice crack.

Now his voice cracks when he speaks and he is growing body hair.

Please, God, just let me get off the phone before my voice cracks.

It didn't take any effort at all to make my voice crack as if I were on the verge of tears.

"You like itl" Smith's voice cracks on the second word.

His voice cracks on the last two words like the voice of a young boy.

At times his voice cracks and he weeps the words.

Earlier, he had heard his wife's voice crack as she spoke to reporters.