Thanks PJD...that makes sense...first time I find the reason explained. Like I said, it's not a big issue, for I don't use karaoke that often anymore. But, just key changing down 1, the quality is not good. I use KaraFun program, on my PC it's free. and the key changer works well, 1 up or down. As far as using audacity, having the lyrics in front of you while you sing, is the main reason for it in the first place.
Thanks to both of you for your input..
Mike..