Bill Gardner and Keith Martin MIT Media Lab Abstract: An extensive set of head-related transfer function (HRTF) measurements of a KEMAR dummy head microphone was completed in May, 1994. The measurements consist of the left and right ear impulse responses from a Realistic Optimus Pro 7 loudspeaker mounted 1.4 meters from the KEMAR. Maximum length (ML) pseudo-random binary sequences were used to obt