@conference {2645, title = {A Method for Estimating Interaural Time Difference for Binaural Synthesis}, booktitle = {the 125th Audio Engineering Society Convention}, year = {2008}, note = {\ }, month = {10/2008}, publisher = {AES}, organization = {AES}, address = {San Francisco, CA, USA}, abstract = {\ A method for estimating interaural time difference (ITD) from measured head-related transfer functions (HRTFs) is presented. The method forms ITD as the difference in left-ear and right-ear arrival times, estimated as the times of maximum cross-correlation between measured HRTFs and their minimum-phase counterparts. This arrival time estimate is related to a nonlinear least-squares fit to the measured excess phase, emphasizing those frequencies having large HRTF magnitude and deweighting large phase delay errors. As HRTFs are nearly minimum-phase, this method is robust compared to the conventional approach of cross-correlating left-ear and right-ear HRTFs, which can be very different. The method also performs slightly better than techniques averaging phase delay over a limited frequency range.}, keywords = {acoustic signal processing, HRTF, ITD}, url = {http://www.aes.org/e-lib/browse.cfm?elib=14763}, author = {Juhan Nam and Jonathan Abel and Julius O. Smith} }