Investigations on multi-slope sound energy decays in domed Structures


Sü Gül Z., Xiang N., Caliskan M.

41st International Congress and Exposition on Noise Control Engineering 2012, INTER-NOISE 2012, New York, Amerika Birleşik Devletleri, 19 - 22 Ağustos 2012, cilt.6, ss.4905-4914, (Tam Metin Bildiri) identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Cilt numarası: 6
  • Basıldığı Şehir: New York
  • Basıldığı Ülke: Amerika Birleşik Devletleri
  • Sayfa Sayıları: ss.4905-4914
  • TED Üniversitesi Adresli: Hayır

Özet

Sound energy decays of coupled volume systems have attracted acousticians for many years. The interesting sound phenomenon is also applied in real cases as concert halls for influencing perception metrics to desired ranges. Theoretical studies of energy exchanges between coupled volumes with help of Bayesian inference aim to estimate parameters associated with multiple slope decays and characterize energy decays of multiple decay process. This study extends the definition of coupled volume system known to be two or more volumes with well defined enclosure limits coupled to each other with a coupling aperture. As specific combinations of different architectural volumes are highly correlated with acoustical coupling, domed structures are found to have a potential for multi slope investigations. Instead of multiple volumes with defined enclosures a single volume with specific geometric attributes is considered to be base for multiple-slope formation. Within this study a room-acoustic model of a multiple dome superstructure is established for multiple-slope decay analysis. Initial results indicate that double, triple or even more slope natures can be identified within the space at specific frequency bands.