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Measurement of acoustical characteristics of mosques in Saudi Arabia

Abdou, Adel A

The Journal of the Acoustical Society of America, 2003-03, Vol.113 (3), p.1505-1517 [Periódico revisado por pares]

United States

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  • Título:
    Measurement of acoustical characteristics of mosques in Saudi Arabia
  • Autor: Abdou, Adel A
  • Assuntos: Acoustics ; Architecture ; Humans ; Islam ; Religion and Science ; Saudi Arabia ; Sound Spectrography ; Speech Acoustics ; Speech Perception
  • É parte de: The Journal of the Acoustical Society of America, 2003-03, Vol.113 (3), p.1505-1517
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
  • Descrição: The study of mosque acoustics, with regard to acoustical characteristics, sound quality for speech intelligibility, and other applicable acoustic criteria, has been largely neglected. In this study a background as to why mosques are designed as they are and how mosque design is influenced by worship considerations is given. In the study the acoustical characteristics of typically constructed contemporary mosques in Saudi Arabia have been investigated, employing a well-known impulse response. Extensive field measurements were taken in 21 representative mosques of different sizes and architectural features in order to characterize their acoustical quality and to identify the impact of air conditioning, ceiling fans, and sound reinforcement systems on their acoustics. Objective room-acoustic indicators such as reverberation time (RT) and clarity (C50) were measured. Background noise (BN) was assessed with and without the operation of air conditioning and fans. The speech transmission index (STI) was also evaluated with and without the operation of existing sound reinforcement systems. The existence of acoustical deficiencies was confirmed and quantified. The study, in addition to describing mosque acoustics, compares design goals to results obtained in practice and suggests acoustical target values for mosque design. The results show that acoustical quality in the investigated mosques deviates from optimum conditions when unoccupied, but is much better in the occupied condition.
  • Editor: United States
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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