In Porto a new concert hall is under construction. The new hall will be shoebox shaped with specific solutions to ensure sufficient strong lateral reflections. Acoustically, the main challenge is the front and back walls being entirely made of glass, to give the feeling that the rooms are open to the city. As well as keeping out noise from exterior sources, these transparent walls have to be designed such that they contribute to the sound distribution within the hall. With these considerations in mind, the glass walls of the Casa da Música`s concert halls will have horizontally waved structures. The acoustical quality of the hall has been studied by using a simulation model and a scale model.
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