Designing curved diffusers for performance spaces

AES: Journal of the Audio Engineering Society

Volumn 44, Issue 5, 1996, Pages 354-364

  Cox, Trevor J ^a,b,c,d  

^a UNIVERSITY OF SALFORD   (United Kingdom)

^b UNIVERSITY OF BIRMINGHAM   (United Kingdom)

^c LONDON SOUTH BANK UNIVERSITY   (United Kingdom)

^d RPG Diffusor Systems Inc

Author keywords

[No Author keywords available]

Indexed keywords

ACOUSTIC VARIABLES MEASUREMENT; ACOUSTIC WAVE SCATTERING; AUDITORIUMS; DIFFUSION; FUNCTIONS; GEOMETRY; OPTIMIZATION; PERFORMANCE; SURFACES;

BAFFLED DIFFUSERS; CIRCLE ARC; CURVED DIFFUSERS; LOBING; PERFORMANCE SPACES; SPECULAR ZONE; STANDARD DEVIATION FUNCTION;

ACOUSTIC DEVICES;

EID: 0030145543     PISSN: 00047554     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (16)

1. T. J. Cox and Y. Lam, "The Performance of Realisable Quadratic Residue Diffusers (QRDs)," Appl. Acoust., vol. 41, pp. 237-246 (1994).
2. M. R. Schroeder, "Binaural Dissimilarity and Optimum Ceilings for Concert Halls: More Lateral Sound Diffusion," J. Acoust. Soc. Am., vol. 65, pp. 958-963 (1979).
3. D. E. Commins, N. Auletta, and B. Suner, "Diffusion and Absorption of Quadratic Residue Diffusers," Proc. IoA (UK), vol. 10, no. 2, pp. 223-232 (1988).
4. K. Fujiwara, "A Study of the Sound Absorption of a Quadratic Residue Diffuser," Acustica, vol. 81, pp. 370-378 (1995).
5. H. Kuttruff, "Sound Absorption by Pseudostochastic Diffusers (Schroeder Diffusers)," Appl. Acoust., vol. 42, pp. 215-231 (1994).
6. F. P. Mechel, "The Wide-Angle Diffuser - A Wide-Angle Absorber," Acustica, vol. 81, pp. 379-401 (1995).
7. T. J. Cox, "Predicting the Scattering from Reflectors and Diffusers Using 2D Boundary Element Methods," J. Acoust. Soc. Am., vol. 96, pp. 874-878 (1994).
8. T. J. Cox and Y. W. Lam, "Evaluation of Methods for Predicting the Scattering from Simple Rigid Panels," Appl. Acoust., vol. 40, pp. 123-140 (1993).
9. T. Terai, "On the Calculation of Fields around Three-Dimensional Objects by Integral Equation Methods," J. Sound. Vib., vol. 69, pp. 71-100 (1980).
10. M. Abramowitz and I. A. Stegun, Handbook of Mathematical Functions (Dover, New York, 1965).
11. H. A. Schenck, "Improved Integral Formulation for Acoustic Radiation Problems," J. Acoust. Soc. Am., vol. 44, pp. 41-58 (1968).
12. W. H. Press et al., Numerical Recipes, the Art of Scientific Computing (Cambridge, London, UK, pp. 289-292 (1989).
13. T. J. Cox, "Optimization of Profiled Diffusers," J. Acoust. Soc. Am., vol. 97, pp. 2928-2936 (1995).
14. P. D'Antonio, "Performance Evaluation of Optimized Diffusers," J. Acoust. Soc. Am., vol. 97, pp. 2937-2941 (1995).
15. T. Cox, "Objective and Subjective Evaluation of Reflecting and Diffusing Surfaces in Auditoria," Ph.D. Thesis, University of Salford, Salford, UK (1992).
16. P. D'Antonio, "Two Decades of Diffuser Design and Development," presented at the 99th Convention of the Audio Engineering Society, J. Audio Eng. Soc. (Abstracts), vol. 43, p. 1095 (1995 Dec.), preprint 4114.