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Understanding the Legendary Sound Environment in the Lobby of Hotel Okura Tokyo

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Urban Planning & Architectural Planning Section, Design Division, TAISEI DESIGN Planners Architects & Engineers, Tokyo 163-0606, Japan
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Traditional, Conservation & Advanced Wood Architecture Section, TAISEI DESIGN Planners Architects & Engineers, Tokyo 163-0606, Japan
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Design Division, TAISEI DESIGN Planners Architects & Engineers, Tokyo 163-0606, Japan
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Author to whom correspondence should be addressed.
Appl. Sci. 2020, 10(13), 4552; https://doi.org/10.3390/app10134552
Received: 29 May 2020 / Revised: 23 June 2020 / Accepted: 24 June 2020 / Published: 30 June 2020
(This article belongs to the Special Issue Advances in Room Acoustics of Non-performing Public Spaces)
The main lobby of Hotel Okura Tokyo has a good reputation for its sound environment, which affects the conversations of its users. We assumed that the lobby’s reputation was related to its speech intelligibility. In this study, first, the sound during hotel operations was measured to see if there was a difference in the sound environment between the lobby and the entrance hall. As a result, we clarified that the difference in noise levels affected by the degree of crowdedness of the room was smaller in the lobby than in the other rooms. Subsequently, the indoor noise and speech intelligibility were measured to clarify the correspondence of intelligibility with the lobby’s reputation. As a result, the indoor noise was found to be at a level suitable for hotel lobbies and the intelligibility was good. A comprehensive evaluation that included the results of other acoustical surveys revealed that the lobby of Okura is a space that is suitable for conversations, corresponding to the opinions of users. View Full-Text
Keywords: sound environment; intelligibility; RASTI; reverberation time; indoor noise level; sound pressure distribution; sound during hotel operation; hotel lobby; modern architecture sound environment; intelligibility; RASTI; reverberation time; indoor noise level; sound pressure distribution; sound during hotel operation; hotel lobby; modern architecture
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Nojima, R.; Sugie, N.; Taguchi, A.; Kokubo, J. Understanding the Legendary Sound Environment in the Lobby of Hotel Okura Tokyo. Appl. Sci. 2020, 10, 4552.

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