Data processing: generic control systems or specific application – Specific application – apparatus or process – Digital audio data processing system
Reexamination Certificate
2005-10-25
2010-06-08
Kuntz, Curtis (Department: 2614)
Data processing: generic control systems or specific application
Specific application, apparatus or process
Digital audio data processing system
C381S017000, C381S119000
Reexamination Certificate
active
07734362
ABSTRACT:
For reducing Doppler artifacts in the wave-field synthesis due to delay changes from one time to a second time, first, the delay for the first time and the delay for the second time are determined. Then, a value of an audio signal delayed by the first delay for the current time and the value for the audio signal delayed by the second delay for the current time are determined. Then, the first value is weighted by a first weighting factor and a second value is averaged with a second weighting factor, whereupon the two weighted values are added up to obtain a discrete value for the current time of the component in a loudspeaker signal for a loudspeaker based on a virtual source. Thus, by knowing a delay present at a later time, panning is obtained from a delay to a subsequent delay, which reduces undesired Doppler artifacts.
REFERENCES:
patent: 5052685 (1991-10-01), Lowe et al.
patent: 5495576 (1996-02-01), Ritchey
patent: 5598478 (1997-01-01), Tanaka et al.
patent: 5715318 (1998-02-01), Hill et al.
patent: 5862229 (1999-01-01), Shimizu
patent: 04-132499 (1992-06-01), None
patent: 06-233869 (1994-08-01), None
patent: 06-245300 (1994-09-01), None
patent: WO 01/23104 (2001-04-01), None
Verheijen, Edwin Nico Gerard, “Sound Reproduction by Wave Field Synthesis”, Jan. 1998, pp. 45-47, 83-85, 104-112.
De Bruijn, Werner P.J. et al; “Subjective experiments on the effects of combining spatialized audio and 2D video projection in audio-visual systems”; Audio Engineering Society Convention Paper 5582; 2002; pp. 1-11; Munich, Germany.
Reiter, Ulrich et al.; “Automatisierte Anpassung der Akustik an virtuelle Räume”; 46thInternational Scientific Colloquium; Ilmenau Technical University; Sep. 24, 2001; Ilmenau, Germany.
Berkhout, A.J. et al.; “Acoustic control by wave field synthesis”; The Journal of the Acoustical Society of America; May 1993; No. 5; pp. 2764-2778; New York, USA.
Spors, S. et al.; “High-Quality Acoustic Rendering with Wave Field Synthesis”; Vision, Modeling, and Visualization 2002, ′Online!; Nov. 22, 2002; pp. 101-108; Erlangen, Germany.
Spors, S. et al.; “Listening Room Compensation For Wave Field Synthesis”; IEEE Proceedings of International Conference on Multimedia and Expo; Jul. 9, 2003; pp. 725-728; vol. 1.
Horbach, U. et al.; “Real-Time Rendering Of Dynamic Scenes Using Wave Field Synthesis”; IEEE Proceedings of International Conference on Multimedia and Expo; 2002; pp. 517-520.
Pellegrini, R. et al.; “Perceptual Encoding of Acoustic Environments”; IEEE Proceedings of International Conference on Multimedia and Expo; 2002; pp. 501-503.
Brix Sandra
Roeder Thomas
Sporer Thomas
Elbin Jesse A
Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung
Keating & Bennett LLP
Kuntz Curtis
LandOfFree
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