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US 11,238,881 B2Granted
Weight matrix initialization method to improve signal decomposition
AssigneeAccusonus, Inc.
InventorsElias Kokkinis, Alexandros Tsilfidis
Life of this patent
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Abstract
A method of decomposing digital signals using non-negative matrix factorization by generating an initial set of values in a row in the weight matrix from a ratio of a first function of a first signal of a plurality of digital signals divided by a second function of at least two other signals of the plurality of the digital signals, wherein the row in the weight matrix determines a decomposition of the plurality of digital signals into signal components.
Claims9
A method of creating an initial set of values in a row of a weight matrix in non-negative matrix factorization to decompose digital audio signals comprising:
- generating the initial set of values of the row of the weight matrix from a ratio of a first function of a first signal of a plurality of digital audio signals divided by a second function of at least two other signals of the plurality of the digital audio signals, wherein the row in the weight matrix determines a decomposition of the plurality of digital audio signals into signal components;
- and
- audibly outputting a portion of one or more of the components of the decomposed plurality of digital audio signals at least based on input from an interface element.
Dependencies are inferred from the claim text.