Robustness of spatial average equalizations: A statistical reverberation model approach

Journal of the Acoustical Society of America

Volumn 116, Issue 6, 2004, Pages 3491-3497

  Bharitkar, Sunil ^a,b   Hilmes, Philip ^a   Kyriakakis, Chris ^a  

^a University of Southern California   (United States)

^b NONE   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ACOUSTIC SIGNAL PROCESSING; ACOUSTIC WAVES; MICROPHONES; ROBUSTNESS (CONTROL SYSTEMS); SPEECH PROCESSING;

CONVERGENCE ANALYSIS; INVERSE EQUALIZATION; LISTENER ROOM EQUALIZATION; MICROPHONE-LISTENER MISMATCH;

REVERBERATION;

ACOUSTICS; ANALYTIC METHOD; ARTICLE; MICROPHONE; PERFORMANCE; PRIORITY JOURNAL; REVERBERATION; SOUND INTENSITY; STATISTICAL ANALYSIS; STATISTICAL MODEL;

ARCHITECTURE; AUDITORY PERCEPTION; FOURIER ANALYSIS; HUMANS; LOUDNESS PERCEPTION; MODELS, STATISTICAL; ORIENTATION; PITCH PERCEPTION; SOCIAL ENVIRONMENT; SOUND; SOUND SPECTROGRAPHY;

EID: 11144295725     PISSN: 00014966     EISSN: None     Source Type: Journal    
DOI: 10.1121/1.1810238     Document Type: Article

References (14)

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2. J. Mourjopoulos, "On the variation and invertibility of room impulse response functions," J. Sound Vib. 102, 217-228 (1985).
3. In practice, a low pass filter with a large cutoff frequency (e.g., 10 kHz), depending on the direct to reverberant energy, is applied to the equalization filter to prevent audio from sounding bright.
4. The filter was a finite impulse response (FIR) filter of duration 8192 samples, and the design of lower-order filters and analysis for such designs will not be considered in this paper. Interested readers are requested to see, Refs. 5 and 6.
5. S. Bharitkar and C. Kyriakakis, "A cluster centroid method for room response equalization at multiple locations," Proceedings of the 2001 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA '01), New York, October 2001.
6. S. Bharitkar and C. Kyriakakis, "Perceptual multiple location equalization with clustering," Proceedings of the 36th IEEE, Asilomar Conference on Signals, Systems, & Computers, Pacific Grove, California, November 2002.
7. A rectangular room is considered since the assumptions for a statistical reverberant sound field have been verified for this shape room and in practice rectangular shaped rooms are found commonplace.
8. B. D. Radlovic, R. C. Williamson, and R. A. Kennedy, "Equalization in acoustic reverberant environment:robustness results," IEEE Trans. Speech Audio Process. 8, 311-319 (2000).
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10. S. Bharitkar, P. Hilmes, and C. Kyriakakis, "Robustness of averaging equalizers to spatial variations: A statistical approach," in Ref. 6.
11. P. M. Morse and K. Uno Ingard, Theoretical Acoustics (Princeton University Press, Princeton, NJ, 1986).
12. R. K. Cook, R. V. Waterhouse, R. D. Berendt, S. Edelman, and M. C. Thompson, "Measurement of correlation coefficients in reverberant sound fields," J. Acoust. Soc. Am. 27, 1072-1077 (1955).
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14. M. Kendall and A. Stuart, The Advanced Theory of Statistics, 4th ed. (Griffin Press, London, 1976), p. 246.