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Z. Ben-Hur, D. Alon, R. Mehra, and B. Rafaely, "Binaural Reproduction using Bilateral Ambisonics," Paper 2-1, (2020 August.). doi: Z. Ben-Hur, D. Alon, R. Mehra, and B. Rafaely, "Binaural Reproduction using Bilateral Ambisonics," Paper 2-1, (2020 August.). doi:
Abstract: Binaural reproduction plays an important role in virtual and augmented reality applications. The rendering of binaural signals using Spherical-Harmonics (SH) representation gives the flexibility to control the reproduced binaural signals, by using algorithms that operate directly in the SH domain. However, in most practical cases, the binaural reproduction is order-limited, which introduces truncation error that has a detrimental effect on the perception of the reproduced signals. A recent study showed that pre-processing of the Head-Related Transfer Function (HRTF) by ear-alignment reduces its effective SH order. In this paper, a method to incorporate the ear-aligned HRTF into the binaural reproduction process using a new Ambisonics representation of the sound field formulated at the two ears, denoted here as Bilateral Ambisonics, is presented. Application of this method yields a significant improvement in the perceived audio quality of order-limited binaural signals.

@article{ben-hur2020binaural,
author={ben-hur, zamir and alon, david and mehra, ravish and rafaely, boaz},
journal={journal of the audio engineering society},
title={binaural reproduction using bilateral ambisonics},
year={2020},
volume={},
number={},
pages={},
doi={},
month={august},} @article{ben-hur2020binaural,
author={ben-hur, zamir and alon, david and mehra, ravish and rafaely, boaz},
journal={journal of the audio engineering society},
title={binaural reproduction using bilateral ambisonics},
year={2020},
volume={},
number={},
pages={},
doi={},
month={august},
abstract={binaural reproduction plays an important role in virtual and augmented reality applications. the rendering of binaural signals using spherical-harmonics (sh) representation gives the flexibility to control the reproduced binaural signals, by using algorithms that operate directly in the sh domain. however, in most practical cases, the binaural reproduction is order-limited, which introduces truncation error that has a detrimental effect on the perception of the reproduced signals. a recent study showed that pre-processing of the head-related transfer function (hrtf) by ear-alignment reduces its effective sh order. in this paper, a method to incorporate the ear-aligned hrtf into the binaural reproduction process using a new ambisonics representation of the sound field formulated at the two ears, denoted here as bilateral ambisonics, is presented. application of this method yields a significant improvement in the perceived audio quality of order-limited binaural signals.},}

TY - paper
TI - Binaural Reproduction using Bilateral Ambisonics
SP - EP -
AU - Ben-Hur, Zamir
AU - Alon, David
AU - Mehra, Ravish
AU - Rafaely, Boaz
PY - 2020
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - August 2020 TY - paper
TI - Binaural Reproduction using Bilateral Ambisonics
SP - EP -
AU - Ben-Hur, Zamir
AU - Alon, David
AU - Mehra, Ravish
AU - Rafaely, Boaz
PY - 2020
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - August 2020
AB - Binaural reproduction plays an important role in virtual and augmented reality applications. The rendering of binaural signals using Spherical-Harmonics (SH) representation gives the flexibility to control the reproduced binaural signals, by using algorithms that operate directly in the SH domain. However, in most practical cases, the binaural reproduction is order-limited, which introduces truncation error that has a detrimental effect on the perception of the reproduced signals. A recent study showed that pre-processing of the Head-Related Transfer Function (HRTF) by ear-alignment reduces its effective SH order. In this paper, a method to incorporate the ear-aligned HRTF into the binaural reproduction process using a new Ambisonics representation of the sound field formulated at the two ears, denoted here as Bilateral Ambisonics, is presented. Application of this method yields a significant improvement in the perceived audio quality of order-limited binaural signals.