Has anyone noticed how weird Erin Gray's voice sounds? She sounds like a deaf person sometimes sounds (something like Sue Thomas FBI). I looked on the net to see if she had any speech impediments but found nothing? Anyone else hear this?

Has anyone noticed how weird Erin Gray's voice sounds? She sounds like a deaf person sometimes sounds (something like Sue Thomas FBI). I looked on the net to see if she had any speech impediments but found nothing? Anyone else hear this?
I have the Buck Rogers DVD and Erin sounds fine to me...