A Revision and Objective Evaluation of the 1-Pole 1-Zero Spherical Head Shadowing Filter
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D. Romblom, and H. Bahu, "A Revision and Objective Evaluation of the 1-Pole 1-Zero Spherical Head Shadowing Filter," Paper P9-2, (2018 August.). doi:
D. Romblom, and H. Bahu, "A Revision and Objective Evaluation of the 1-Pole 1-Zero Spherical Head Shadowing Filter," Paper P9-2, (2018 August.). doi:
Abstract: Structural models of Head Related Transfer Functions attempt to decompose complex acoustic phenomena into constituent signal processing models. The work of Brown and Duda modeled the head with two elements: a pure delay estimated from a ray-tracing formula by Woodworth and a 1-pole 1-zero shadowing ?lter. The ray-tracing formula is valid for frequencies above ˜ 2kHz while interaural time delay (ITD) is perceptually signi?cant below ˜ 1.5kHz. The frequency-dependence of the phase-derived ITDp has been shown by many authors but is not accounted for by ray-tracing assumptions. As such, the shadowing ?lter must account for the low frequency variation in ITDp. Using a numerical approximation of Rayleigh’s solution as a reference, this paper evaluates and revises the work of Brown and Duda.
@article{romblom2018a,
author={romblom, david and bahu, hélène},
journal={journal of the audio engineering society},
title={a revision and objective evaluation of the 1-pole 1-zero spherical head shadowing filter},
year={2018},
volume={},
number={},
pages={},
doi={},
month={august},}
@article{romblom2018a,
author={romblom, david and bahu, hélène},
journal={journal of the audio engineering society},
title={a revision and objective evaluation of the 1-pole 1-zero spherical head shadowing filter},
year={2018},
volume={},
number={},
pages={},
doi={},
month={august},
abstract={structural models of head related transfer functions attempt to decompose complex acoustic phenomena into constituent signal processing models. the work of brown and duda modeled the head with two elements: a pure delay estimated from a ray-tracing formula by woodworth and a 1-pole 1-zero shadowing ?lter. the ray-tracing formula is valid for frequencies above ˜ 2khz while interaural time delay (itd) is perceptually signi?cant below ˜ 1.5khz. the frequency-dependence of the phase-derived itdp has been shown by many authors but is not accounted for by ray-tracing assumptions. as such, the shadowing ?lter must account for the low frequency variation in itdp. using a numerical approximation of rayleigh’s solution as a reference, this paper evaluates and revises the work of brown and duda.},}
TY - paper
TI - A Revision and Objective Evaluation of the 1-Pole 1-Zero Spherical Head Shadowing Filter
SP -
EP -
AU - Romblom, David
AU - Bahu, Hélène
PY - 2018
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - August 2018
TY - paper
TI - A Revision and Objective Evaluation of the 1-Pole 1-Zero Spherical Head Shadowing Filter
SP -
EP -
AU - Romblom, David
AU - Bahu, Hélène
PY - 2018
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - August 2018
AB - Structural models of Head Related Transfer Functions attempt to decompose complex acoustic phenomena into constituent signal processing models. The work of Brown and Duda modeled the head with two elements: a pure delay estimated from a ray-tracing formula by Woodworth and a 1-pole 1-zero shadowing ?lter. The ray-tracing formula is valid for frequencies above ˜ 2kHz while interaural time delay (ITD) is perceptually signi?cant below ˜ 1.5kHz. The frequency-dependence of the phase-derived ITDp has been shown by many authors but is not accounted for by ray-tracing assumptions. As such, the shadowing ?lter must account for the low frequency variation in ITDp. Using a numerical approximation of Rayleigh’s solution as a reference, this paper evaluates and revises the work of Brown and Duda.
Structural models of Head Related Transfer Functions attempt to decompose complex acoustic phenomena into constituent signal processing models. The work of Brown and Duda modeled the head with two elements: a pure delay estimated from a ray-tracing formula by Woodworth and a 1-pole 1-zero shadowing ?lter. The ray-tracing formula is valid for frequencies above ˜ 2kHz while interaural time delay (ITD) is perceptually signi?cant below ˜ 1.5kHz. The frequency-dependence of the phase-derived ITDp has been shown by many authors but is not accounted for by ray-tracing assumptions. As such, the shadowing ?lter must account for the low frequency variation in ITDp. Using a numerical approximation of Rayleigh’s solution as a reference, this paper evaluates and revises the work of Brown and Duda.
Authors:
Romblom, David; Bahu, Hélène
Affiliation:
Dysonics, San Francisco, CA, USA
AES Conference:
2018 AES International Conference on Audio for Virtual and Augmented Reality (August 2018)
Paper Number:
P9-2
Publication Date:
August 11, 2018Import into BibTeX
Permalink:
http://www.aes.org/e-lib/browse.cfm?elib=19696