Improving Binaural Ambisonics Decoding by Spherical Harmonics Domain Tapering and Coloration Compensation

C. Hold; H. Gamper; V. Pulkki; N. Raghuvanshi; I. J. Tashev

doi:10.1109/ICASSP.2019.8683751

Improving Binaural Ambisonics Decoding by Spherical Harmonics Domain Tapering and Coloration Compensation

C. Hold, H. Gamper, V. Pulkki, N. Raghuvanshi, I. J. Tashev

Communication Acoustics: Spatial Sound and Psychoacoustics

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

20 Citations (Scopus)

465 Downloads (Pure)

Abstract

A powerful and flexible approach to record or encode a spatial sound scene is through spherical harmonics (SHs), or Ambisonics. An SH-encoded scene can be rendered binaurally by applying SH-encoded head-related transfer functions (HRTFs). Limitations of the recording equipment or computational constraints dictate the spatial reproduction accuracy, thus rendering might suffer from spatial degradation as well as coloration. This paper studies the effect of tapering the SH representation of a binaurally rendered sound field in conjunction with its spectral equalization. The proposed approach is shown to reduce coloration and thus improves perceived audio quality.

Original language	English
Title of host publication	2019 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2019 - Proceedings
Publisher	IEEE
Pages	261-265
Number of pages	5
ISBN (Electronic)	978-1-4799-8131-1
ISBN (Print)	978-1-4799-8132-8
DOIs	https://doi.org/10.1109/ICASSP.2019.8683751
Publication status	Published - May 2019
MoE publication type	A4 Conference publication
Event	IEEE International Conference on Acoustics, Speech, and Signal Processing - Brighton, United Kingdom Duration: 12 May 2019 → 17 May 2019 Conference number: 44

Publication series

Name	Proceedings of the IEEE International Conference on Acoustics, Speech, and Signal Processing
ISSN (Print)	1520-6149
ISSN (Electronic)	2379-190X

Conference

Conference	IEEE International Conference on Acoustics, Speech, and Signal Processing
Abbreviated title	ICASSP
Country/Territory	United Kingdom
City	Brighton
Period	12/05/2019 → 17/05/2019

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10.1109/ICASSP.2019.8683751

ELEC_Pulkki_Improving_binaural_ambisonic_ICASSP2019Accepted author manuscript, 475 KB

Cite this

Hold, C., Gamper, H., Pulkki, V., Raghuvanshi, N., & Tashev, I. J. (2019). Improving Binaural Ambisonics Decoding by Spherical Harmonics Domain Tapering and Coloration Compensation. In 2019 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2019 - Proceedings (pp. 261-265). Article 8683751 (Proceedings of the IEEE International Conference on Acoustics, Speech, and Signal Processing). IEEE. https://doi.org/10.1109/ICASSP.2019.8683751

Hold, C. ; Gamper, H. ; Pulkki, V. et al. / Improving Binaural Ambisonics Decoding by Spherical Harmonics Domain Tapering and Coloration Compensation. 2019 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2019 - Proceedings. IEEE, 2019. pp. 261-265 (Proceedings of the IEEE International Conference on Acoustics, Speech, and Signal Processing).

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abstract = "A powerful and flexible approach to record or encode a spatial sound scene is through spherical harmonics (SHs), or Ambisonics. An SH-encoded scene can be rendered binaurally by applying SH-encoded head-related transfer functions (HRTFs). Limitations of the recording equipment or computational constraints dictate the spatial reproduction accuracy, thus rendering might suffer from spatial degradation as well as coloration. This paper studies the effect of tapering the SH representation of a binaurally rendered sound field in conjunction with its spectral equalization. The proposed approach is shown to reduce coloration and thus improves perceived audio quality.",

author = "C. Hold and H. Gamper and V. Pulkki and N. Raghuvanshi and Tashev, {I. J.}",

year = "2019",

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Hold, C, Gamper, H, Pulkki, V, Raghuvanshi, N & Tashev, IJ 2019, Improving Binaural Ambisonics Decoding by Spherical Harmonics Domain Tapering and Coloration Compensation. in 2019 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2019 - Proceedings., 8683751, Proceedings of the IEEE International Conference on Acoustics, Speech, and Signal Processing, IEEE, pp. 261-265, IEEE International Conference on Acoustics, Speech, and Signal Processing, Brighton, United Kingdom, 12/05/2019. https://doi.org/10.1109/ICASSP.2019.8683751

Improving Binaural Ambisonics Decoding by Spherical Harmonics Domain Tapering and Coloration Compensation. / Hold, C.; Gamper, H.; Pulkki, V. et al.
2019 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2019 - Proceedings. IEEE, 2019. p. 261-265 8683751 (Proceedings of the IEEE International Conference on Acoustics, Speech, and Signal Processing).

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

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T1 - Improving Binaural Ambisonics Decoding by Spherical Harmonics Domain Tapering and Coloration Compensation

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AB - A powerful and flexible approach to record or encode a spatial sound scene is through spherical harmonics (SHs), or Ambisonics. An SH-encoded scene can be rendered binaurally by applying SH-encoded head-related transfer functions (HRTFs). Limitations of the recording equipment or computational constraints dictate the spatial reproduction accuracy, thus rendering might suffer from spatial degradation as well as coloration. This paper studies the effect of tapering the SH representation of a binaurally rendered sound field in conjunction with its spectral equalization. The proposed approach is shown to reduce coloration and thus improves perceived audio quality.

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T3 - Proceedings of the IEEE International Conference on Acoustics, Speech, and Signal Processing

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Hold C, Gamper H, Pulkki V, Raghuvanshi N, Tashev IJ. Improving Binaural Ambisonics Decoding by Spherical Harmonics Domain Tapering and Coloration Compensation. In 2019 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2019 - Proceedings. IEEE. 2019. p. 261-265. 8683751. (Proceedings of the IEEE International Conference on Acoustics, Speech, and Signal Processing). doi: 10.1109/ICASSP.2019.8683751

Improving Binaural Ambisonics Decoding by Spherical Harmonics Domain Tapering and Coloration Compensation

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