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In an augmented reality environment, real and virtual world audio signals are simultaneously presented to a listener. Virtual sound content and a real sound source should not interfere with each other. Thus, to make this possible, we have examined spatial auditory masking between maskers and maskees, where maskers are real sound signals emitted from loudspeakers, and maskees are virtual sound images generated using head-related transfer functions (HRTFs), emitted from headphones. The experiment was conducted using open-ear headphones, which allows us to hear the environment while listening to the audio content. The results are similar to those of a previous experiment, in which the masker and maskee were both real signals emitted from loudspeakers. Masking threshold levels as a function of maskee locations have a symmetric property to the frontal plane of a subject with a given masker location. However, the masking threshold level is lower than in the previous experiment, perhaps due to HRTFs’ limited ability to localize sound images. The results indicate that, like real sound signals, spatial auditory masking of human hearing occurs with virtually localized sound images.
Author (s): Nishiguchi, Masayuki; Ishihara, Soma; Watanabe, Kanji; Abe, Koji; Takane, Shouichi
Affiliation:
Akita Prefectural University, Atika, Japan
(See document for exact affiliation information.)
AES Convention: 151
Paper Number:10524
Publication Date:
2021-10-06
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Session subject:
Evaluation of spatial audio
Permalink: https://aes2.org/publications/elibrary-page/?id=21488
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Nishiguchi, Masayuki; Ishihara, Soma; Watanabe, Kanji; Abe, Koji; Takane, Shouichi; 2021; Spatial auditory masking between real sound signals and virtual sound images [PDF]; Akita Prefectural University, Atika, Japan; Paper 10524; Available from: https://aes2.org/publications/elibrary-page/?id=21488
Nishiguchi, Masayuki; Ishihara, Soma; Watanabe, Kanji; Abe, Koji; Takane, Shouichi; Spatial auditory masking between real sound signals and virtual sound images [PDF]; Akita Prefectural University, Atika, Japan; Paper 10524; 2021 Available: https://aes2.org/publications/elibrary-page/?id=21488
@article{nishiguchi2021spatial,
author={nishiguchi masayuki and ishihara soma and watanabe kanji and abe koji and takane shouichi},
journal={journal of the audio engineering society},
title={spatial auditory masking between real sound signals and virtual sound images},
year={2021},
number={10524},
month={october},}