The Virtual Acoustics team has recently worked hard to finalize six papers that will be presented next June in International Symposium on Room Acoustics (ISRA 2013). We are really looking forward to a great conference in Toronto, Canada.

Two of the papers deal with room acoustics modeling. Haapaniemi et al. [1] discuss about reflection of sound from layered structures often used in concert halls. The results show how sound is attenuated at some frequencies and how well such structures diffuse sound. Robinson et al. [2] introduce a project in which best shapes of side walls and side balconies are searched with automatic optimization of geometry. 

Tervo et al. [3] extend a recently published Spatial Decomposition Method to perform the analysis on frequency bands. The paper also shows visualizations on sound energy distribution in two concert halls. Pätynen et al. [4] show that when an orchestra plays in fortissimo the spectrum of sound is quite different than in pianissimo. Thus, the music has non-linear characteristics that are earlier neglected in room acoustics studies. Moreover, human (spatial) hearing is also highly non-linear, another aspect that should be considered seriously in concert hall acoustics studies.

Kuusinen et al. [5] analyse the behavior of individual assessors in our recent studies (IVP1 in 2011 and IVP2 in 2012) on concert hall acoustics with individual vocabulary profiling technique. The analysis reveals that subjects behave quite differently when they are creating individual discriminating attributes for comparison of concert halls. Finally, Lokki gathers, in his keynote paper [6], the current knowledge of the team by presenting some interesting time-frequency and spatiotemporal analysis of famous European concert halls that we have recently measured.

 

[1] A Haapaniemi, A Southern and T Lokki. A finite-difference time-domain investigation of reflections from layered wall structures. In International Symposium on Room Acoustics (ISRA 2013). 2013. BibTeX / Info

@inproceedings{haa13isra,
	address = "Toronto, Canada",
	author = "A. Haapaniemi and A. Southern and T. Lokki",
	booktitle = "International Symposium on Room Acoustics (ISRA 2013)",
	date-added = "2013-03-13 17:35:54 +0200",
	date-modified = "2013-03-13 17:35:54 +0200",
	keywords = "Wave-based models, Concert hall acoustics",
	month = "June 9-11",
	title = "A finite-difference time-domain investigation of reflections from layered wall structures",
	year = 2013
}

[2] P W Robinson, S Siltanen, T Lokki and L Savioja. Concert hall geometry optimization with parametric modeling tools and wave-based acoustic simulations. In International Symposium on Room Acoustics (ISRA 2013). 2013. BibTeX / Info

@inproceedings{rob13isra,
	address = "Toronto, Canada",
	author = "P. W. Robinson and S. Siltanen and T. Lokki and L. Savioja",
	booktitle = "International Symposium on Room Acoustics (ISRA 2013)",
	date-added = "2013-03-13 17:35:54 +0200",
	date-modified = "2013-03-13 17:35:54 +0200",
	keywords = "Concert hall acoustics",
	month = "June 9-11",
	title = "Concert hall geometry optimization with parametric modeling tools and wave-based acoustic simulations",
	year = 2013
}

[3] S Tervo, J Pätynen and T Lokki. Spatial analysis of concert hall impulse responses. In International Symposium on Room Acoustics (ISRA 2013). 2013. BibTeX / Info

@inproceedings{ter13isra,
	address = "Toronto, Canada",
	author = {S. Tervo and J. P{\"a}tynen and T. Lokki},
	booktitle = "International Symposium on Room Acoustics (ISRA 2013)",
	date-added = "2013-03-13 17:35:54 +0200",
	date-modified = "2013-03-13 17:35:54 +0200",
	keywords = "Room acoustic analysis",
	month = "June 9-11",
	title = "Spatial analysis of concert hall impulse responses",
	year = 2013
}

[4] J Pätynen, S Tervo and T Lokki. Binaural dynamic responsiveness in concert halls. In International Symposium on Room Acoustics (ISRA 2013). 2013. BibTeX / Info

@inproceedings{pat13isra,
	address = "Toronto, Canada",
	author = {J. P{\"a}tynen and S. Tervo and T. Lokki},
	booktitle = "International Symposium on Room Acoustics (ISRA 2013)",
	date-added = "2013-03-13 17:35:54 +0200",
	date-modified = "2013-03-13 17:35:54 +0200",
	keywords = "Concert hall acoustics, Room acoustic analysis",
	month = "June 9-11",
	title = "Binaural dynamic responsiveness in concert halls",
	year = 2013
}

[5] A Kuusinen and T Lokki. Individual differences in quality judgments and preferences of concert hall acoustics. In International Symposium on Room Acoustics (ISRA 2013). 2013. BibTeX / Info

@inproceedings{kuu13isra,
	address = "Toronto, Canada",
	author = "A. Kuusinen and T. Lokki",
	booktitle = "International Symposium on Room Acoustics (ISRA 2013)",
	date-added = "2013-03-13 17:35:54 +0200",
	date-modified = "2013-03-13 17:35:54 +0200",
	keywords = "Concert hall acoustics",
	month = "June 9-11",
	title = "Individual differences in quality judgments and preferences of concert hall acoustics",
	year = 2013
}

[6] T Lokki. Throw away that standard and listen: your two ears work better. In International Symposium on Room Acoustics (ISRA 2013). 2013. BibTeX / Info

@inproceedings{lok13isra,
	address = "Toronto, Canada",
	author = "T. Lokki",
	booktitle = "International Symposium on Room Acoustics (ISRA 2013)",
	date-added = "2013-03-13 17:35:54 +0200",
	date-modified = "2013-03-13 17:35:54 +0200",
	keywords = "Concert hall acoustics, Room acoustic analysis",
	month = "June 9-11",
	title = "Throw away that standard and listen: your two ears work better",
	year = 2013
}
 

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