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AES 24th International Conference on Multichannel Audio 1

Recording Concert Hall Acoustics For Posterity
Angelo Farina1, Regev Ayalon2
1 Industrial Engineering Dept., University of Parma, Italy
farina@unipr.it
2 K.S. Waves Inc., Tel Aviv, ISRAEL
regev@waves.com

ACKNOWLEDGMENTS

This research was funded and logistically supported by Waves (www.waves.com), as part of the development of a new reverberation tool based on sampled acoustical impulse responses and capable of surround multichannel processing.

The calibration of the loudspeaker and the measurements performed in the theatres in Japan were possible only thanks to the support of prof. Yoichi Ando and colleagues of the University of Kobe, Japan (Kosuke Kato, Takuya Hotehama, Yosuke Okamoto), who allowed the authors to employ their laboratories and who helped during the measurements. Furthermore, useful discussion and exchange of technical information with these colleagues allowed the authors to improve the measurement technique.

The study of various rendering methods and of advanced hybrid multichannel solutions has been actively supported by the Ambiophonics Institute, where the listening experiments with various formats were performed.

The authors want to express their gratitude to the owners of the 9 theatres where the measurements were performed, who kindly also gave permission to publish the measured data, and to L. Tronchin and A. Avanzini, for their help during the measurements.

REFERENCES

[1] Michael Gerzon - "Recording Concert Hall Acoustics for Posterity", JAES Vol. 23, Number 7 p. 569 (1975)

[2] L. Tronchin, A. Farina - "The acoustics of the former Teatro "La Fenice", Venice", JAES Vol. 45, Number 12 p. 1051 (1997)

[3] "Carta di Ferrara", CIARM, http://acustica.ing.unife.it/ciarm/Carta.htm

[4] "Guidelines for acoustical measurements inside historical opera houses: procedures and validation", CIARM, http://acustica.ing.unife.it/ciarm/download.htm

[5] A. Farina, R. Glasgal, E. Armelloni, A. Torger - "Ambiophonic Principles for the Recording and Reproduction of Surround Sound for Music" - 19th AES Conference on Surround Sound, Techniques, Technology and Perception - Schloss Elmau, Germany, 21-24 June 2001.

[6] E.Hulsebos, D.de Vries, and E. Bourdillat - "Improved Microphone Array Configurations for Auralization of Sound Fields by Wave-Field Synthesis", JAES Vol. 50, Number 10 p. 779 (2002)

[7] A. Karamustafaoglu, U. Horbach, R. Pellegrini P. Mackensen, G. Theile - "Design and Applications of a Data-based Auralisation System for Surround SoundÓ, 106th AES Convention, pre-print n. 4976 (1999).

[8] M. A. Poletti - "A Unified Theory of Horizontal Holographic Sound Systems", JAES Vol. 48, Number 12 p. 1049 (2000).

[9] A. Farina Ů žSimultaneous measurement of impulse response and distortion with a sweptsine techniqueÓ, 110th AES Convention, Paris 18- 22 February 2000.

[10] S. Młller, P. Massarani Ů žTransfer-Function Measurement with SweepsÓ, JAES Vol. 49, Number 6 pp. 443 (2001).

[11] G. Stan, J.J. Embrechts, D. Archambeau Ů žComparison of Different Impulse Response Measurement TechniquesÓ, JAES Vol. 50, No. 4, p. 249, 2002 April.

[12] Y. Ando, žConcert hall acousticsÓ. Springer Series in electrophysics, Berlin, 1985.

[13] V.L. Jordan, žA group of objective acoustical criteria for concert hallsÓ, Applied Acoustics, vol. 14 (1981)

[14] A. Torger, A. Farina Ů žReal-time partitioned convolution for Ambiophonics surround soundÓ, 2001 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics - Mohonk Mountain House New Paltz, New York October 21-24, 2001.

[15] T. G. Stockham Jr., žHigh-speed convolution and correlationÓ, AFIPS Proc. 1966 Spring Joint Computer Conf., Vol 28, Spartan Books, 1966, pp. 229 - 233.

[16] W.G. Gardner, žEfficient convolution without input-output delayÓ, JAES vol. 43, n. 3, 1995 March, pp. 127-136.

[17] O. Kirkeby, P. A. Nelson, H. Hamada, žThe "Stereo Dipole" - A Virtual Source Imaging System Using Two Closely Spaced LoudspeakersÓ Ů JAES vol. 46, n. 5, 1998 May, pp. 387-395.

[18] O.Kirkeby, P.A. Nelson, P. Rubak, A. Farina Ů žDesign of Cross-talk Cancellation Networks by using Fast DeconvolutionÓ - 106th AES Convention, Munich, 8-11 may 1999.

[19] Lake DSP Huron Workstation, http://www.lakedsp.com

[20] A. Farina, E. Ugolotti, žSoftware Implementation Of B-Format Encoding And DecodingÓ, Pre-prints of the 104rd AES Convention, Amsterdam, 15 - 20 May, 1998.

[21] A.Field, žB-dec High resolution First Order Ambisonic B-format decoderÓ, University of York, http://www.york.ac.uk/inst/mustech/3d_audio

[22] G. Theile Ů žMultichannel Natural Music Recording Based on Psychoacoustic PrinciplesÓ - AES 19 th International Conference, May 2001.

[23] Roland Jacques, MultiMedia Projekt VERDI, TU Ilmenau Laboratory, Germany 2002 - http://www.stud.tuilmenau. de/~proverdi/daten/um1en.html

[24] Williams, M.; Le Du, G. Ů žMultichannel Microphone Array DesignÓ, 108th AES Convention, 2000, Preprint 5157.

[25] Herrmann, U., Henkels, V., Braun, D. Ů žComparison of 5 surround microphone methodsÓ, Proceedings 20th Tonmeistertagung, 1998, (ISBN 3-598-20361-6), pp. 508-517.

[26] D. McGriffy, žVisual Virtual MicrophoneÓ, http://mcgriffy.com/audio/ambisonic/vvmic

[27] E. Hulsebos, T. Schuurmans, D. de Vries and R. Boone Ů žCircular microphone array for discrete multichannel audio recordingÓ, 114th AES Convention, Amsterdam 22-25 March 2003, preprint n. 5716.

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