Complex sentence: The Blind Auditions were taped from July 9 to July 12, the Battle rounds were taped on August 13 and 14, with the original line-up of coaches reprising their roles.
Split into simpler sentences: The Blind Auditions were taped from July 9 to July 12. While the Battle rounds will be taped on August 13 and 14, with the original line-up of coaches reprising their roles.