Reverberation characteristics of 4 kHz and 20 kHz tone bursts in a water filled tank and their effect on experimental design

Although reverberation characteristics of air filled rooms have been exhaustively studied and defined, those of water filled tanks have not; water reverberation work has been concentrated on the open ocean. We have obtained reverberation data on a typical tank and applied it to the design of experiments for both human and animal subjects. Computer-programmed pulses were used with standard instrumentation to provide the data. Photographs of pulse returns and decay and their time of audibility by the dolphin are presented.