Leighton Concert Hall, in the DeBartolo Performing Arts Center at the University of Notre Dame, has an innovative design that Group of answer choices permits reverberation times of 3.6 seconds for opera performances. includes seat cushions with the same absorption properties as an average person. lengthens intimacy time to be between 30 and 50 ms. allows reverberation time to be adjusted between 1.4 and 2.6 seconds