ASA 124th Meeting New Orleans 1992 October

3pAA7. Binaural recordings from KEMAR mannequin in several acoustical environments.

Abhijit Kulkarni

William S. Woods

H. Steven Colburn

Dept. of Biomed. Eng., Boston Univ., 44 Cummington St., Boston, MA 02215)

In the development and evaluation of virtual acoustic displays, the relative importance of factors such as head movement, listener-specific pinna responses, and naturalness of the environment to the veridical localization of sound including externalization) remains unclear. In this poster demonstration, the role of reverberation is explored through a series of recordings from an artificial head in a variety of acoustical environments. Specifically, several binaural recordings have been made on the acoustical mannequin KEMAR for single and multiple talker configurations in a variety of different environments and in a number of different conditions. The signals from KEMAR's microphones Etymotic ER---1/2 in.) were amplified ER-11 amplifiers provided with microphones) and fed directly to a commercially available digital audio tape DAT) machine. These recordings will be available for listening and discussion at the poster. [Work supported by NIDCD.]