Dear Colleagues,

Research in the field of architectural acoustics aims to increase the comfort and quality of life of people in living and working environments. Already in the fifth century BC, in the cities of Magna Graecia in southern Italy, it was forbidden to carry out noisy activities at night so as not to disturb the peace and sleep of people, while in ancient Rome, the noise of the cities was considered a problem for people's rest . The first written treatise on acoustics that has come down to us is that of Vitruvius in the first century BC, which describes how to improve the acoustics of theatres. Modern acoustics begins with the studies of W. C. Sabine at the end of the 19th century. Architectural acoustics includes the acoustics of closed environments, buildings, work environments such as schools or industries, and sports environments such as gyms and swimming pools. To have good conditions of acoustic comfort, the evaluation of the acoustic insulation and the control of the reverberation are required in order to obtain an environment in which a suitable quality of life is possible. In addition, indoor acoustics include topics such as opera houses, concert halls and auditoriums, schools, cinemas, gymnasiums, swimming pools, restaurants, and open spaces. The optimal conditions of acoustic comfort can be obtained with good planning and the application of suitable insulating or sound-absorbing materials. Studies on the applications of metamaterial acoustics are also appreciated. In this Special Issue, we welcome original research papers and review articles based on diverse topics in building acoustics, such as:

• Acoustics of metamaterials;
• Acoustic properties of green materials;
• Acoustics in workplaces;
• Nightlife acoustics in cities and historic centers;
• Acoustic correction of closed environments;
• Acoustic measurements;
• Acoustic machine learning;
• Speech intelligibility;
• Acoustic design of closed environments;
• Acoustics of ancient theatres in modern use;
• Virtual acoustic reconstruction of historical places;
• Acoustics of places of worship.

Dr. Gino Iannace
Guest Editor

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• opera houses
• concert halls
• metamaterials
• green materials
• workplaces
• nightlife
• closed environments
• acoustic measurement
• ancient theatres