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Research on Perception Sensitivity of Elevation Angle in 3D Sound Field

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Advances in Multimedia Information Processing - PCM 2016 (PCM 2016)

Part of the book series: Lecture Notes in Computer Science ((LNISA,volume 9916))

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Abstract

The development of virtual reality and three-dimensional (3D) video inspired the concern about 3D audio, 3D audio aims at reconstructing the spatial information of original signals, the spatial perception sensitivity and minimum audible angle (MAA) would help to improve the accuracy of reconstructing signals. The measurements and analysis of MAA thresholds are limited to the azimuth angle at present, lacking of elevation angles quantitative analyzing, it is unable to build the complete spatial perception model of 3D sound field, which could be used in accurate 3D sound field reconstruction. In order to study the perception sensitivity of elevation angle at different locations in 3D sound field, subjective listening tests were conducted, elevation minimum audible angle (EMAA) thresholds at 144 different locations in 3D sound field were tested. The tests were referred to the quantitative analysis of azimuth minimum audible angle (AMAA) thresholds of human ear, based on psychoacoustic model and manikin. The results show that the EMAA thresholds have obvious dependence on elevation angle, thresholds vary between 3\(^{\circ }\) and 30\(^{\circ }\), reach the minimum value at the ear plane (elevation angle: 0\(^{\circ }\)), increase proportional linearly as the elevation angle departs from the ear plane and reach a relative maximum value on both sides (elevation angle: \(-30^{\circ }\) and 90\(^{\circ }\)). Besides, the EMAA thresholds are dependent upon azimuth angle too, thresholds reach the minimum value around median plane (azimuth angle: 0\(^{\circ }\)).

The research was supported by National High Technology Research and Development Program of China (863 Program, No. 2015AA016306); National Nature Science Foundation of China (No. 61231015); National Nature Science Foundation of China (No. 61471271); Science and Technology Plan Projects of Shenzhen (No. ZDSYS2014050916575763).

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Author information

Authors and Affiliations

  1. State Key Laboratory of Software Engineering, Wuhan University, Wuhan, China

    Yafei Wu & Ge Gao

  2. National Engineering Research Center for Multimedia Software, Computer School of Wuhan University, Wuhan, China

    Cheng Yang, Ge Gao & Wei Chen

  3. Research Institute of Wuhan University in Shenzhen, Shenzhen, China

    Yafei Wu & Cheng Yang

  4. Department of Electrical and Computer Engineering, George Mason University, Fairfax, USA

    Xiaochen Wang

  5. Collaborative Innovation Center of Geospatial Technology, Wuhan, China

    Xiaochen Wang

Authors
  1. Yafei Wu
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  2. Xiaochen Wang
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  3. Cheng Yang
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  4. Ge Gao
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  5. Wei Chen
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Corresponding author

Correspondence to Xiaochen Wang .

Editor information

Editors and Affiliations

  1. Zhengzhou University, Zhengzhou, China

    Enqing Chen

  2. Jiaotong University, Xi’an, China

    Yihong Gong

  3. Zhengzhou University, Zhengzhou, China

    Yun Tie

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Wu, Y., Wang, X., Yang, C., Gao, G., Chen, W. (2016). Research on Perception Sensitivity of Elevation Angle in 3D Sound Field. In: Chen, E., Gong, Y., Tie, Y. (eds) Advances in Multimedia Information Processing - PCM 2016. PCM 2016. Lecture Notes in Computer Science(), vol 9916. Springer, Cham. https://doi.org/10.1007/978-3-319-48890-5_24

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  • DOI: https://doi.org/10.1007/978-3-319-48890-5_24

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-48889-9

  • Online ISBN: 978-3-319-48890-5

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