An international competition for the design of a concert hall was held in Ostro Czech Republic. The jury consists of seven people. The new 1300-seat concert hall is located next to the existing cultural congress and is designed as a complete audio tool. The newly designed newly designed Acoustic Collaboration provides a functional space for the system. Jorn Orchestra is a contemporary orchestra in the country. The design of urban traffic noise is by placing the main hall near a park behind the building, while the new entrance to the building is up the center of the building. This kind of architectural style has created a dramatic action between old and new style and a cultural city for the city. The tool contains a polished surface in the middle plan, made of concrete and maple leaves. Acoustic wall panels consist of three different types:sound, counting and summing
