A Method for Estimating Interaural Time Difference for Binaural Synthesis

Nam J, Abel JS, Smith III JO. A Method for Estimating Interaural Time Difference for Binaural Synthesis. In: AES Convention 125. Audio Engineering Society; 2008. Paper 7612. Available from: https://aes.org/publications/elibrary-page/?id=14763

@inproceedings{Nam2008_14763,
  author = {Nam, Juhan and Abel, Jonathan S. and Smith III, Julius O.},
  title = {{A Method for Estimating Interaural Time Difference for Binaural Synthesis}},
  booktitle = {AES Convention 125},
  note = {Paper 7612},
  year = {2008},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=14763}
}

TY  - CPAPER
TI  - A Method for Estimating Interaural Time Difference for Binaural Synthesis
AU  - Nam, Juhan
AU  - Abel, Jonathan S.
AU  - Smith III, Julius O.
T2  - AES Convention 125
M1  - Paper 7612
PY  - 2008
DA  - 2008/10/06
UR  - https://aes.org/publications/elibrary-page/?id=14763
PB  - Audio Engineering Society
LA  - en
AB  - 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.
ER  -