I am a vocalist and vocal instructor, Whitney can get her voice back it just takes vocal exercises but she has to get her health together first. Trust me I have restored many of voices and from hearing hers all of it's not lost . I find it sad how some have so much to say, I like both Whitney and Mariah and BOTH don't sound like they once did. Anybody saying that Mariah still sounds the same is lying to themselves. Her voice is very damaged too.