EVERYTIME I TRY TO SING A KARAOKE SONG FROM A SITE THE SINGING LAGS ABOUT 1/2 SECONG BEHIND THE MUSIC. HOW CAN I FIX THIS. THE SITE WORKS OK BECAUSE WHEN I RECORD IT TO THE SITE ALL IS IN SYNC. THIS ONLY HAPPENS WHEN I TRY TO RECORD IT FOR MYSELF TO KEEP INSTEAD OF LEAVING IT ON THE SITE. TY