The 58th Open Seminar on Acoustics and 2nd Polish-German Structured Conference on Acoustics are organized by the Gda?sk Division of the Polish Acoustical Society, the latter jointly with the German Acoustical Society DEGA. These scientific events are going to be held in the Delfin Hotel in Jurata on Hel Peninsula on 13 - 16 September 2011.

The topics of the papers submitted to the 58th Open Seminar on Acoustics cover a large area of theoretical, technical and experimental research in the field of acoustics. The 2nd Polish-German Structured Conference on Acoustics will be held in the following sections: multi-modal and object-oriented approaches to audition, computational acoustics, active noise control, room and building acoustics, and seabed acoustics.