Title: 67th Open Seminar on Acoustics September 14 – 17, 2021
Abstract: The Open Seminar on Acoustics is an annual conference, the largest acoustics conference in Poland.It has been bringing all Polish acousticians together for over sixty years.It is organized in turns by different divisions of Polish Acoustical Society -in 2021 by the Krakow Division with the Department of Mechanics and Vibroacoustics, AGH -University of Science and Technology in Krakow and The Committee on Acoustics of Polish Academy of Science.The conference was supported by The International Commission for Acoustics and The Acoustical Society of America, and also by the City of Krakow.The conference presents all sections of acoustics, such as: physical acoustics, environmental, speech, hearing, musical, architectural acoustics, vibroacoustics etc.The Open Seminar on Acoustics was joined with the XXIV Conference of Acoustical and Biomedical Engineering and the 36 Symposium on Hydroacoustics.The conferences were online and were organized as part of the International Year of Sound 2020-2021.The seminar was joined with special session "In Memoriam Professor Zbigniew Engel" and the Workshop "Common noise assessment methods in Europe (CNOSSOS-EU)".