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."
La Scala, Fortitude Valley Wickham Terrace but continued to live in the house, renting out the ground floor to another doctor. The house and surgery were owned and occupied by a number of doctors over the years before being turned into flats in the 1970s. The original stables were demolished and a small addition was built on the rear of the house. In 1980 the property was bought by Brisbane architect Robert Riddel who restored it and renamed it "La Scala". The ground floor, which was enlarged in the 1980s, housed an architectural practice for some years until 1992 and is now divided into