Timbral aspects of reproduced sound in small rooms. II

Journal of the Acoustical Society of America

Volumn 99, Issue 6, 1996, Pages 3539-3549

  Bech, Søren ^a,b  

^a TECHNICAL UNIVERSITY OF DENMARK   (Denmark)

^b BANG AND OLUFSEN A S   (Denmark)

Author keywords

[No Author keywords available]

Indexed keywords

ACOUSTICS; ARTICLE; AUDITORY THRESHOLD; FREQUENCY ANALYSIS; NONHUMAN; PRIORITY JOURNAL; ROOM VENTILATION; SOUND DETECTION; SOUND INTENSITY;

EID: 0029942109     PISSN: 00014966     EISSN: None     Source Type: Journal    
DOI: 10.1121/1.414952     Document Type: Article

References (24)

1. S. Bech, "Timbral aspects of reproduced sound in small rooms. I," J. Acoust. Soc. Am. 97, 1717-1726 (1995).
2. L. Cremer and H. A. Müller (translated by T. J. Schultz), Principles and Applications of Room Acoustics (Applied Science, New York, 1982), Vol. 1, pp. 17-19.
3. J. H. Rindel, "Modeling the Angle-dependent Pressure Reflection Factor," Appl. Acoust. 38, 223-234 (1993).
4. 3 concludes that the diffuse field coefficient should be set equal to the absorption at 55 degrees angle of incidence. The 55 degrees was found in experiments conducted after the present. The maximum difference is 0.9 dB for 100 and 125 Hz for reflection No. 5. For all other situations the difference is smaller than 0.5 dB.
5. L. R. Fincham and R. H. Small, "The application of digital signal processing to large scale simulation of room acoustics. Part I-Signal processing requirements in the Archimedes project," 90th Convention of The Audio Engineering Society, Paris, France, 19-22 February, Preprint 3055 (1991).
6. D. M. Brookes, R. I. Harris, and R. J. Wilson, "The application of digital signal processing to large scale simulation of room acoustics. Part III-DSP engine hardware topology and control software for multichannel simulation," 90th Convention of The Audio Engineering Society, Paris, France, 19-22 February, Preprint 3057 (1991).
7. K. B. Christensen, "The application of digital signal processing to large scale simulation of room acoustics. Part II-Frequency response modeling and optimization software for a multichannel DSP engine," J. Audio Eng. Soc. 40, 260-276 (1992).
8. S. Bech, "Training of subjects for auditory experiments," Acta Acust. 1, 89-99 (1994).
9. ANSI S1.1-1960, "Acoustical Terminology" (American National Standards Institute, New York, 1960).
10. 1 The reflections were selected to represent all three (four) groups. However, given the current level of understanding of the results, it is likely that reflections 3, 8, and 12 would have been included for further investigations.
11. H. Levitt, "Transformed up-down methods in psychoacoustics," J. Acoust. Soc. Am. 49, 467-477 (1971).
12. S. E. Olive and F. E. Toole, "The detection of reflections in typical rooms," J. Audio Eng. Soc. 37, 539-553 (1989).
13. F. A. Bilsen and R. J. Ritsma, "Repetition Pitch and Its Implication for Hearing Theory," Acustica 22, 63-73 (1969/70).
14. 18 also investigated timbre or coloration and found that the threshold of perceptibility of pitch and coloration of comb-filtered signals are similar and both have maximum for pitch values around 200 Hz corresponding to a dominant frequency range around 800 Hz.
15. G. von Bismark, "Timbre of steady sound: A factorial investigation of its verbal attributes," Acustica 30, 146-159 (1974).
16. G. von Bismark, "Sharpness as an attribute of the timbre of steady sounds," Acustica 30, 159-172 (1974).
17. D. M. Green, Profile Analysis Auditory Intensity Discrimination (Oxford U.P., New York, 1988).
18. F. A. Bilsen and R. J. Ritsma, "Some Parameters Influencing the Perceptibility of Pitch," J. Acoust. Soc. Am. 47, 469-475 (1970).
19. 1 are based on all subjects, and will therefore differ from those shown here. Also note that only jnd values for reflections 1, 7, 13, and 17 for the speech signal, can be found in the first report.
20. K. P. Tschopp and T. Beckenbauer, "The Level Difference Limen of Test Materials used in Speech Audiometry," Acustica 75, 173-183 (1991).
21. S. Bech, "Perception of Timbre of Reproduced Sound in Small Rooms: Influence of Room and Loudspeaker Position," J. Audio Eng. Soc. 42, 999-1007 (1994).
22. It is assumed that the absorption characteristics of the floor and ceiling are constant for the main parts of the ceiling and floor area and that the height of the loudspeaker and the ear level of the listener are constant.
23. R. Walker, "A new approach to the design of control room acoustics for stereophony," 94th Convention of The Audio Engineering Society, Berlin, Paper G1-1 (Preprint No. 3543) (1993).
24. R. Walker, "Early reflections in studio control rooms: the results from the first controlled Image Design installations," 96th Convention of The Audio Engineering Society, Amsterdam, Paper P12-6 (Preprint No. 3853) (1994).