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J. Nam, MI. A.. Kolar, and JO. S.. Abel, "On the Minimum-Phase Nature of Head-Related Transfer Functions," Paper 7546, (2008 October.). doi: J. Nam, MI. A.. Kolar, and JO. S.. Abel, "On the Minimum-Phase Nature of Head-Related Transfer Functions," Paper 7546, (2008 October.). doi:
Abstract: For binaural synthesis, head-related transfer functions (HRTFs) are commonly implemented as pure delays followed by minimum-phase systems. Here, the minimum-phase nature of HRTFs is studied. The cross-coherence between minimum-phase and unprocessed measured HRTFs was seen to be greater than 0.9 for a vast majority of the HRTFs, and was rarely below 0.8. Non-minimum-phase filter components resulting in reduced cross-coherence appeared in frontal and ipsilateral directions. The excess group delay indicates that these non-minimum-phase components are associated with regions of moderate HRTF energy. Other regions of excess phase correspond to high-frequency spectral nulls, and have little effect on cross-coherence.

@article{nam2008on,
author={nam, juhan and kolar, miriam a. and abel, jonathan s.},
journal={journal of the audio engineering society},
title={on the minimum-phase nature of head-related transfer functions},
year={2008},
volume={},
number={},
pages={},
doi={},
month={october},} @article{nam2008on,
author={nam, juhan and kolar, miriam a. and abel, jonathan s.},
journal={journal of the audio engineering society},
title={on the minimum-phase nature of head-related transfer functions},
year={2008},
volume={},
number={},
pages={},
doi={},
month={october},
abstract={for binaural synthesis, head-related transfer functions (hrtfs) are commonly implemented as pure delays followed by minimum-phase systems. here, the minimum-phase nature of hrtfs is studied. the cross-coherence between minimum-phase and unprocessed measured hrtfs was seen to be greater than 0.9 for a vast majority of the hrtfs, and was rarely below 0.8. non-minimum-phase filter components resulting in reduced cross-coherence appeared in frontal and ipsilateral directions. the excess group delay indicates that these non-minimum-phase components are associated with regions of moderate hrtf energy. other regions of excess phase correspond to high-frequency spectral nulls, and have little effect on cross-coherence.},}

TY - paper
TI - On the Minimum-Phase Nature of Head-Related Transfer Functions
SP - EP -
AU - Nam, Juhan
AU - Kolar, Miriam A.
AU - Abel, Jonathan S.
PY - 2008
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - October 2008 TY - paper
TI - On the Minimum-Phase Nature of Head-Related Transfer Functions
SP - EP -
AU - Nam, Juhan
AU - Kolar, Miriam A.
AU - Abel, Jonathan S.
PY - 2008
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - October 2008
AB - For binaural synthesis, head-related transfer functions (HRTFs) are commonly implemented as pure delays followed by minimum-phase systems. Here, the minimum-phase nature of HRTFs is studied. The cross-coherence between minimum-phase and unprocessed measured HRTFs was seen to be greater than 0.9 for a vast majority of the HRTFs, and was rarely below 0.8. Non-minimum-phase filter components resulting in reduced cross-coherence appeared in frontal and ipsilateral directions. The excess group delay indicates that these non-minimum-phase components are associated with regions of moderate HRTF energy. Other regions of excess phase correspond to high-frequency spectral nulls, and have little effect on cross-coherence.