The measurements technique of balance in opera houses: A study of the sources involved

The study of the acoustical balance between the singer and the orchestra by means of room acoustical measurements has shown that the directional characteristics of the source on the stage are important. This investigation compares the performance of two directional and one omnidirectional loudspeakers in emulating a soprano voice. Directivity measurements of a soprano singer were carried out in an anechoic chamber and used as a basis for comparison in room acoustic simulations of the Royal Theatre of Copenhagen, the Ankara Congress and Cultural Center, and the Alberta Jubilee Auditorium. In particular, the balance measurement was simulated and the performance of the different sources with respect to the soprano was assessed.