Çok Amaçlı Alev Alatlı Konferans Salonunun Akustik Parametrelerinin Ölçülmesi

Year 2025, Volume: 7 Issue: 1 , 1 - 14 , 30.04.2025

Akın Oktav , Mehmet Şahin

https://doi.org/10.46740/alku.1545470

https://izlik.org/JA65RZ54EA

Abstract

Çok amaçlı salonlar, konferanslardan konserlere, tiyatro gösterilerinden spor etkinliklerine kadar çok çeşitli etkinlikler için kullanılmaktadır. Bu tür salonların akustik performansı, etkinliğin türüne, sıcaklık değişimlerine ve salonun doluluk oranına bağlı olarak büyük ölçüde değişebilir. Bu nedenle, çok amaçlı bir salonun akustik özelliklerinin belirlenmesi, mekânın her kullanım senaryosunda en iyi akustik performansı sağlayabilmesini sağlamak için kritik öneme sahiptir. Çok amaçlı bir konferans salonunda 2 farklı uyaran ve 2 farklı sıcaklıkta bir ölçüm araştırması gerçekleştirilmiştir. Salonun tepkisi, çok yönlü mikrofonlar ve bir yapay kafa kullanılarak 10 alıcı konumunda kaydedilmiştir. Ham veri işlenerek yankılanma süresi, erken sönümlenme süresi, bas oranı, merkez süresi, netlik, tanımlama, hızlı konuşma iletim indeksi ve işitsel çapraz korelasyon elde edilmiştir. Akustik performansı değerlendirmek için sonuçlar ilgili standartlar ve literatürle karşılaştırılmıştır.

Keywords

Çok amaçlı salon akustiği , oda akustik parametreleri , oda dürtü yanıtı , akustik performans

Project Number

123M884

Measurement of Acoustic Parameters of the Multipurpose Alev Alatlı Conference Hall

https://izlik.org/JA65RZ54EA

Abstract

Multi-purpose halls are used for a wide range of activities, from conferences to concerts, theatre performances to sporting events. The acoustic performance of such halls can vary greatly depending on the type of event, temperature variations and occupancy of the hall. Therefore, determining the acoustic characteristics of a multi-purpose hall is critical to ensure that the venue can provide the best acoustic performance in every usage scenario. A measurement survey is conducted in a multipurpose conference hall through 2 different stimuli and in 2 different temperatures. The response of the hall is recorded at 10 receiver locations using omnidirectional microphones and a dummy head. The reverberation time, early decay time, bass ratio, centre time, clarity, definition, rapid speech transmission index, and inter aural cross correlation are extracted from the raw data. The results are compared to the relevant standards and the literature to evaluate the acoustic performance.

Keywords

Multipurpose hall acoustics , room acoustic parameters , room impulse response , acoustical performance

Supporting Institution

TUBITAK

Project Number

123M884

Thanks

This study was supported by Scientific and Technological Research Council of Turkey (TUBITAK) under the Grant Number 123M884 The authors thank TUBITAK for their supports.

References

• [1] M. Holden, Acoustics of Multi-Use Performing Arts Centers, CRC Press, 2015.
• [2] F. Policardi, “MLS and Sine-Sweep measurements,” Università di Bologna, Italia Elektrotehniški Vestnik, vol. 78, no. 3, pp. 91-95, 2011.
• [3] Q. Meng, D. Sen, S. Wang, and L. Hayes, “Impulse response measurement with sine sweeps and amplitude modulation schemes”, 2nd Int. Conf. on Signal Processing and Communication Systems, Gold Coast, QLD, Australia, 2008, pp. 1–5.
• [4] P. Guidorzi, L. Barbaresi, D. D’Orazio and M. Garai, M, “Impulse responses measured with MLS or Swept–Sine signals applied to architectural acoustics: an in–depth analysis of the two methods and some case studies of measurements inside theatres,” Energy Procedia, 2015, pp. 1611–1616.
• [5] S. Antoniadou, N.M. Papadakis and G.E. Stavroulakis, “Measuring Acoustic Parameters with ESS and MLS methods: Effect of Artificially Varying Background Noise,” Proc. of the Euronoise, 2018, pp. 771–776.
• [6] A. Farina, 2000, February. Simultaneous measurement of impulse response and distortion with a swept-sine technique. In Audio Eng. Society Conv. 108. Audio Engineering Society, Paris, 2000, Paper number 5903.
• [7] L. Tronchin, F. Merli and M. Manfren, “On the acoustics of the Teatro 1763 in Bologna,”, Appl. Acoust, 172, 107598, 2021.
• [8] A. Bevilacqua, S. Sukaj, G. Ciaburro, G. Iannace, I. Lombardi and A. Trematerra, “How a quartet of theatres play under an acoustic perspective: A comparison between horseshoe–shaped plans in Campania,” Build. Acoust, 351010X221080769, 2022.
• [9] J.A. Almagro–Pastor, R. García–Quesada, J. Vida–Manzano, F.J. Martínez–Irureta and Á.F. Ramos–Ridao, “The Acoustics of the Palace of Charles V as a Cultural Heritage Concert Hall,” Acoust, vol.4, no.3, pp. 800–820, 2022.
• [10] D. Alarcão, O. Inácio, “Determination of room acoustic parameters using spherical beamforming–The example of Lisbon’s Garrett Hall,”. Appl. Acoust, 192, 108734, 2022.
• [11] N.M. Papadakis, S. Antoniadou and G.E. Stavroulakis, “Effects of varying levels of background noise on room acoustic parameters, measured with ESS and MLS methods,” Acoust, vol. 5, no. 2, pp. 563-574, 2023.
• [12] A. Nowoświat, “Impact of temperature and relative humidity on reverberation time in a reverberation room,” Build., vol. 12, no. 8, p. 1282, 2022.
• [13] F. Leccese, M. Rocca and G. Salvadori, “Fast estimation of Speech Transmission Index using the Reverberation Time: Comparison between predictive equations for educational rooms of different sizes,” Appl. Acoust, vol. 140, pp. 143-149, 2018.
• [14] N. Prodi, M. Pellegatti and C. Visentin, “Effects of type of early reflection, clarity of speech, reverberation, and diffuse noise on the spatial perception of a speech source and its intelligibility,” J. Acoust. Soc. Am., vol. 151, no. 5, pp. 3522-3534, 2022.
• [15] P. Götz, C. Tuna, A. Walther and E.A. Habets, “Online reverberation time and clarity estimation in dynamic acoustic conditions,” J. Acoust. Soc. Am., vol. 153, no. 6, pp. 3532-3542, 2023.
• [16] L. Tronchin, “Variability of room acoustic parameters with thermo-hygrometric conditions,” Appl. Acoust, vol. 177, p.107933, 2021.
• [17] L.L. Beranek, Concert Halls, and Opera Houses: Music, Acoustics, and Architecture, Vol. 2. New York: Springer, 2004.
• [18] H. Kuttruff, Room Acoustics, CRC Press, 2016.
• [19] ISO 3382-1 “Acoustics – Measurement of room acoustic parameters – Part1: Performance spaces,” 2009.
• [20] P. Larm and V. Hongisto, “Experimental comparison between speech transmission index, rapid speech transmission index, and speech intelligibility index,” J. Acoust. Soc. Am., vol. 119, no. 2, pp.1106-1117, 2006.
• [21] ISO 10140 “Acoustics – Laboratory measurement of sound insulation of building elements,” 2021.
• [22] ISO 16283 “Acoustics – Field measurement of sound insulation in buildings and of building elements,” 2020.