Patent ID: 9055381
Filing Date: 2015-06-09
Classification: H04S

Abstract:
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.