Opera house electronic libretto systems have begun to be used in some opera houses, including New York's Metropolitan Opera, Milan's La Scala, and the Crosby Theatre of The Santa Fe Opera, which provide two lines of text on individual screens attached to the backs of the seats so as to not interfere with the visual aspects of the performance. A subtle type of sound reinforcement called acoustic enhancement is used in some opera houses. Acoustic enhancement systems help give a more even sound in the hall and prevent "dead spots" in the audience seating area by "...augment[ing] a hall's intrinsic acoustic characteristics."
Parker's Opera House Parker's Opera House Parker's Opera House, also known as Opera House Store, Woolworth's and Parker Place, is a historic building located in Mason City, Iowa, United States. It was designed by the prominent Des Moines architect William Foster. Cousins H.G. and A.T. Parker built this structure as an opera house, which was the first one in the community. While it initially filled a need in Mason City, it was replaced by more modern theatres around the turn of the 20th century. The third floor was created in the building in 1909 when it was placed across the middle of the