THE PENNSYLVANIA STATE ANECHOIC CHAMBER Document Details Document Type Technical Report Publication Date Nov 01, 1954 Accession Number AD0062114 Entities People Eugene Ackerman Robert L. Berger Organizations Pennsylvania State University Tags DTIC Thesaurus Topics Absorption Acoustic Absorption Acoustic Equipment Acoustic Phenomena Anechoic Chambers Buildings And Structures Chambers Continents Geographic Regions North America Pennsylvania