The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 30, 2025
Filed:
Oct. 04, 2021
Dirac Research Ab, Uppsala, SE;
Viktor Gunnarsson, Uppsala, SE;
Dirac Research AB, Uppsala, SE;
Abstract
There is provided a method and corresponding system for processing a set including Head-Related Transfer Functions, HRTFs, for at least two different directions of sound incidence to enable improved generation, modeling or simulation of ear signals corresponding to a diffuse sound field. For each direction of sound incidence to the head, a left-ear HRTF represents the transfer function from a sound source to the left ear, and a right-ear HRTF represents the corresponding transfer function to the right ear. The method comprises applying (S) a phase adjustment to each HRTF, for each ear and direction, for reducing Interaural Time Differences, ITD, above a threshold frequency or in a frequency band above the threshold frequency; and adding (S) a direction-dependent Interaural Phase Difference, IPD, to each HRTF, for each ear and direction, for reducing Interaural Coherence when modelling or simulating a diffuse sound field.