| Presentation | 2018-07-24 On the comparative effect of snowfall, accumulation, and density on speech intelligibility Shuto Shibata, Kazuhiro Kondo, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Sound is known to be altered in some manner by the acoustic characteristics of snow. However, the specific characteristics of snow which actually affects the acoustical transfer characteristics is not clearly understood. This transfer characteristics will be crucial in disaster prevention radio broadcasting systems that warns citizens working outdoors of potential natural disasters during the winter in regions with heavy snow. These systems use extremely high-output horn speakers to convey the warning messages to a large area. Accordingly, the purpose of this research is to clarify how the speech intelligibility will be influenced by the amount of snowfall, its accumulation, and the snow density. In this research, impulse response measurement outdoors is actually carried out during snowfall. We measured and compiled the transfer characteristics under several snow conditions, convolved these with test speech in order to simulate the transmitted speech quality during snow. We conducted a Japanese speech intelligibility test using these speech samples, and clarify the effect of each snow quality measure using multivariate analysis. As a result, it was found that although there is some influence of the amount of snowfall and density, the influence of the amount of snowfall becomes dominant as the distance between the loudspeaker and the listener (microphone) becomes large. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Speech Intelligibility / Impluse Response / Snow / Acoustic characteristic |
| Paper # | EA2018-2 |
| Date of Issue | 2018-07-17 (EA) |
| Conference Information | |
| Committee | EA / ASJ-H / ASJ-AA |
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| Conference Date | 2018/7/24(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Hokkaido Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Engineering/Electro Acoustics, Psychological and Physiological Acoustics, Architectural Acoustics, Education in Acoustics, and Related Topics |
| Chair | Suehiro Shimauchi(ＫＩＴ) / 小澤 賢司(山梨大) / 佐久間 哲哉(東大) |
| Vice Chair | Kenichi Furuya(Oita Univ.) / Kanji Watanabe(Akita Pref. Univ.) / 中川 誠司(千葉大) / 杉江 聡(小林理研) / 大谷 真(京大) |
| Secretary | Kenichi Furuya(Shizuoka Inst. of Science and Tech.) / Kanji Watanabe(NHK) / 中川 誠司(千葉大) / 杉江 聡(尚絅大) / 大谷 真(北陸先端大) |
| Assistant | Keisuke Imoto(Ritsumeikan Univ.) / Daisuke Morikawa(Toyama Pref Univ.) / / 井上 尚久(東大) |
| Paper Information | |
| Registration To | Technical Committee on Engineering Acoustics / Auditory Research Meeting / Architectural Acoustics |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | On the comparative effect of snowfall, accumulation, and density on speech intelligibility |
| Sub Title (in English) | |
| Keyword(1) | Speech Intelligibility |
| Keyword(2) | Impluse Response |
| Keyword(3) | Snow |
| Keyword(4) | Acoustic characteristic |
| 1st Author's Name | Shuto Shibata |
| 1st Author's Affiliation | Yamagata University(Yamagata Univ.) |
| 2nd Author's Name | Kazuhiro Kondo |
| 2nd Author's Affiliation | Yamagata University(Yamagata Univ.) |
| Date | 2018-07-24 |
| Paper # | EA2018-2 |
| Volume (vol) | vol.118 |
| Number (no) | EA-149 |
| Page | pp.pp.7-12(EA), |
| #Pages | 6 |
| Date of Issue | 2018-07-17 (EA) |