Electrical audio signal processing systems and devices – Binaural and stereophonic
Reexamination Certificate
2006-04-18
2006-04-18
Mei, Xu (Department: 2644)
Electrical audio signal processing systems and devices
Binaural and stereophonic
C381S098000
Reexamination Certificate
active
07031474
ABSTRACT:
An acoustic correction apparatus processes a pair of left and right input signals to compensate for spatial distortion as a function of frequency when said input signals are reproduced through loudspeakers in a sound system. The sound-energy of the left and right input signals is separated and corrected in a first low-frequency range and a second high-frequency range. The resultant signals are recombined to create image-corrected audio signals having a desired sound-pressure response when reproduced by the loudspeakers in the sound system. The desired sound-pressure response creates an apparent sound image location with respect to a listener. The image-corrected signals can also be spatially-enhanced to broaden the apparent sound image and improve the low frequency characteristics of the sound when played on small loudspeakers.
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Kraemer Alan D.
Oliver Richard
Yuen Thomas C. K.
Knobbe Martens Olson & Bear LLP
Mei Xu
SRS Labs, Inc.
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