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Acoustic performance of eleven commercial phone booths according to ISO 23351-1

Acoustic performance of eleven commercial phone booths according to ISO 23351-1

Tekijä(t): Valtteri Hongisto & Jukka Keränen

ISBN: 9789522167743 (pdf)

Research Reports from Turku University of Applied Sciences 51

22 pp., 2021

The purpose of this study is to determine the speech level reduction DS,A for 11 typical phone booths and analyze how the results fall to the classes A+, A, B, C, and D defined in ISO 23351-1.

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