sound garble when changing keys

[bendrew]

Normally, this is a big concern for everybody using this program..I am using an alternate karaoke program and i don't have this problem. So, for me, If this is a problem, why not removed it from hoster. If we cannot use it properly, what's the point of putting it in.. I cannot buy that this is because of digital technology. I don't have this problem before, so i think we need to fix this.