1. Symposium on ‘Sound Power Measurements in Reverberant Rooms’ held at the 76th Meeting of the Acoustical Society of America,1971
2. Special Session on ‘Noise Measurement in Reverberant Rooms’ held at the 83rd Meeting of the Acoustical Society of America,1972
3. Special Sessions on ‘Diffuseness of Sound Fields and Its Effect on Measurement’ held at the 86th Meeting of the Acoustical Society of America,1974
4. Workshop on ‘Reverberation Room Qualifications for ANSI S1.21’ held at the 86th Meeting of the Acoustical Society of America,1974