TY - GEN
T1 - Magnitude Least-Squares Based Ambisonics Estimation of Head-Worn Device Microphone Measurements for Binaural Reproduction
AU - Bastine, Amy
AU - Birnie, Lachlan
AU - Abhayapala, Thushara D.
AU - Samarasinghe, Prasanga
AU - Tourbabin, Vladimir
N1 - Publisher Copyright:
© 2024 IEEE.
PY - 2024/1/1
Y1 - 2024/1/1
N2 - Immersive audio experiences in virtual environments rely heavily on accurate Higher-Order Ambisonics (HOAs) estimation and its binaural rendering through Head-worn Devices (HwDs). Addressing the irregular geometry and unknown scattering effects of HwDs, HOA estimation using Wearable-Device-Related Transfer Functions (WDRTFs) was introduced. However, the limited microphone measurements forced the truncation of higher-order WDRTFs which are critical at high frequencies. To alleviate its perceptual impact, this paper proposes a Magnitude Least-Squares (MagLS) based preprocessing of WDRTFs for HOA estimation. A MUSHRA-based listening test showed significant improvement in the binaural signal quality with promising results in comparison to a commercially used spherical microphone array.
AB - Immersive audio experiences in virtual environments rely heavily on accurate Higher-Order Ambisonics (HOAs) estimation and its binaural rendering through Head-worn Devices (HwDs). Addressing the irregular geometry and unknown scattering effects of HwDs, HOA estimation using Wearable-Device-Related Transfer Functions (WDRTFs) was introduced. However, the limited microphone measurements forced the truncation of higher-order WDRTFs which are critical at high frequencies. To alleviate its perceptual impact, this paper proposes a Magnitude Least-Squares (MagLS) based preprocessing of WDRTFs for HOA estimation. A MUSHRA-based listening test showed significant improvement in the binaural signal quality with promising results in comparison to a commercially used spherical microphone array.
KW - ambisonics
KW - arbitrary microphone array
KW - binaural reproduction
KW - Head device
KW - virtual reality
UR - http://www.scopus.com/inward/record.url?scp=85207219369&partnerID=8YFLogxK
U2 - 10.1109/IWAENC61483.2024.10693997
DO - 10.1109/IWAENC61483.2024.10693997
M3 - Conference contribution
AN - SCOPUS:85207219369
T3 - 2024 18th International Workshop on Acoustic Signal Enhancement, IWAENC 2024 - Proceedings
SP - 474
EP - 478
BT - 2024 18th International Workshop on Acoustic Signal Enhancement, IWAENC 2024 - Proceedings
PB - Institute of Electrical and Electronics Engineers
T2 - 18th International Workshop on Acoustic Signal Enhancement, IWAENC 2024
Y2 - 9 September 2024 through 12 September 2024
ER -