Acoustic correction apparatus
First Claim
1. An audio correction system for enhancing spatial and frequency response characteristics of sound reproduced by two or more loudspeakers, the audio correction system comprising:
- an image correction module configured to correct a perceived vertical image of sound when the sound is electronically reproduced;
a bass enhancement module configured to enhance a perceived bass response of the sound when the sound is electronically reproduced; and
an image enhancement module configured to enhance a horizontal image of sound when the sound is electronically reproduced.
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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.
181 Citations
20 Claims
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1. An audio correction system for enhancing spatial and frequency response characteristics of sound reproduced by two or more loudspeakers, the audio correction system comprising:
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an image correction module configured to correct a perceived vertical image of sound when the sound is electronically reproduced;
a bass enhancement module configured to enhance a perceived bass response of the sound when the sound is electronically reproduced; and
an image enhancement module configured to enhance a horizontal image of sound when the sound is electronically reproduced. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for enhancing audio sounds comprising:
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height-correcting a sound signal to improve a perceived height of an apparent sound stage produced by a plurality of loudspeakers;
bass-enhancing the sound signal to enhance a perceived bass response of the loudspeakers; and
width-correcting the sound signal to enhance a perceived width of the apparent sound stage produced by the loudspeakers. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A sound enhancement system comprising:
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means for height-correcting a sound signal to improve a perceived height of an apparent sound stage produced by a plurality of loudspeakers;
means for bass-enhancing the sound signal to enhance a perceived bass response of the loudspeakers; and
means for width-correcting the sound signal to enhance a perceived width of the apparent sound stage produced by the loudspeakers.
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Specification