Next: Measurement technique
HRTF Measurements of a KEMAR Dummy-Head Microphone
Bill Gardner and Keith Martin
MIT Media Lab
An extensive set of head-related transfer function
of a KEMAR dummy head microphone has recently been completed. 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 obtain
the impulse responses at a sampling rate of 44.1 kHz. A total of 710
different positions were sampled at elevations from -40 degrees to +90
degrees. Also measured were the impulse response of the speaker in
free field and several headphones placed on the KEMAR. This data is being
made available to the research community on the Internet via anonymous
FTP and the World Wide Web.