Modifying an apparent elevation of a sound source utilizing second-order filter sections
First Claim
1. A method comprising:
- determining an actual physical location of a sound source relative to a listening reference point; and
reproducing an audio signal via the sound source, wherein the reproducing comprises modifying an elevation of a portion of the audio signal by filtering the portion of the audio signal based on information indicative of parametric equalizers (PEQs) characterizing different individual filters, such that the portion of the audio signal is perceived to be, relative to the listening reference point, at an apparent physical location that is different from the actual physical location of the sound source.
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Accused Products
Abstract
One embodiment provides a method comprising determining an actual elevation of a sound source. The actual elevation is indicative of a first location at which the sound source is physically located relative to a first listening reference point. The method further comprises determining a desired elevation for a portion of an audio signal. The desired elevation is indicative of a second location at which the portion of the audio signal is perceived to be physically located relative to the first listening reference point. The desired elevation is different from the actual elevation. The method further comprises, based on the actual elevation, the desired elevation and the first listening reference point, modifying the audio signal, such that the portion of the audio signal is perceived to be physically located at the desired elevation during reproduction of the audio signal via the sound source.
14 Citations
20 Claims
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1. A method comprising:
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determining an actual physical location of a sound source relative to a listening reference point; and reproducing an audio signal via the sound source, wherein the reproducing comprises modifying an elevation of a portion of the audio signal by filtering the portion of the audio signal based on information indicative of parametric equalizers (PEQs) characterizing different individual filters, such that the portion of the audio signal is perceived to be, relative to the listening reference point, at an apparent physical location that is different from the actual physical location of the sound source. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A system comprising:
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at least one processor; and a non-transitory processor-readable memory device storing instructions that when executed by the at least one processor causes the at least one processor to perform operations including; determining an actual physical location of a sound source relative to a listening reference point; and reproducing an audio signal via the sound source, wherein the reproducing comprises modifying an elevation of a portion of the audio signal by filtering the portion of the audio signal based on information indicative of parametric equalizers (PEQs) characterizing different individual filters, such that the portion of the audio signal is perceived to be, relative to the listening reference point, at an apparent physical location that is different from the actual physical location of the sound source. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A non-transitory computer-readable medium having instructions which when executed on a computer perform a method comprising:
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determining an actual physical location of a sound source relative to a listening reference point; and reproducing an audio signal via the sound source, wherein the reproducing comprises modifying an elevation of a portion of the audio signal by filtering the portion of the audio signal based on information indicative of parametric equalizers (PEQs) characterizing different individual filters, such that the portion of the audio signal is perceived to be, relative to the listening reference point, at an apparent physical location that is different from the actual physical location of the sound source. - View Dependent Claims (18, 19, 20)
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Specification