Multi-way analysis for audio processing
First Claim
Patent Images
1. A method comprising:
- determining, for a direction being at least associated with a value of a first direction component and with a value of a second direction component, at least one weighting factor for each basis function of a set of basis functions, each of the basis functions being associated with an audio transfer characteristic, wherein said determining comprises multiplying one of a first set of gain factors, associated with the first direction component, with one of a second set of gain factors, associated with the second direction component; and
using the determined at least one weighting factor for each basis function to construct a filter at least based on decomposing a given multi-dimensional transfer function database, arranged in a multi-way array having at least three dimensions, into the set of first gain factors being associated with the first direction component, the set of second gain factors being associated with the second direction component and a set of basis functions.
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Abstract
It is disclosed to determine, for a direction being at least associated with a value of a first direction component and with a value of a second direction component, at least one weighting factor for each basis function of a set of basis functions, each of the basis functions being associated with an audio transfer characteristic, wherein said determining is at least based on a first set of gain factors, associated with the first direction component, and on a second set of gain factors, associated with the second direction component
17 Citations
20 Claims
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1. A method comprising:
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determining, for a direction being at least associated with a value of a first direction component and with a value of a second direction component, at least one weighting factor for each basis function of a set of basis functions, each of the basis functions being associated with an audio transfer characteristic, wherein said determining comprises multiplying one of a first set of gain factors, associated with the first direction component, with one of a second set of gain factors, associated with the second direction component; and using the determined at least one weighting factor for each basis function to construct a filter at least based on decomposing a given multi-dimensional transfer function database, arranged in a multi-way array having at least three dimensions, into the set of first gain factors being associated with the first direction component, the set of second gain factors being associated with the second direction component and a set of basis functions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An apparatus comprising at least one processor and at least one memory storing computer program code, wherein the at least one memory and stored computer program code are configured, with the at least one processor, to cause the apparatus to at least:
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determine, for a direction being at least associated with a value of a first direction component and with a value of a second direction component, at least one weighting factor for each basis function of a set of basis functions, each of the basis functions being associated with an audio transfer characteristic, wherein said determining comprises multiplying one of a first set of gain factors, associated with the first direction component, with one of a second set of gain factors, associated with the second direction component; and use the determined at least one weighting factor for each basis function to construct a filter at least based on decomposing a given multi-dimensional transfer function database, arranged in a multi-way array having at least three dimensions, into the set of first gain factors being associated with the first direction component, the set of second gain factors being associated with the second direction component and a set of basis functions. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. A computer program code stored in a non-transitory computer readable storage medium, causing an apparatus to perform the following when executed on a processor:
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determine, for a direction being at least associated with a value of a first direction component and with a value of a second direction component, at least one weighting factor for each basis function of a set of basis functions, each of the basis functions being associated with an audio transfer characteristic, wherein said determination comprises multiplying one of a first set of gain factors, associated with the first direction component, and one of a second set of gain factors, associated with the second direction component; and use the determined at least one weighting factor for each basis function to construct a filter at least based on decomposing a given multi-dimensional transfer function database, arranged in a multi-way array having at least three dimensions, into the set of first gain factors being associated with the first direction component, the set of second gain factors being associated with the second direction component and a set of basis functions. - View Dependent Claims (20)
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Specification