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:
May. 07, 2019
Filed:
Oct. 30, 2015
Dirac Research Ab, Uppsala, SE;
Lars-Johan Brännmark, Uppsala, SE;
Jakob Ågren, Uppsala, SE;
DIRAC RESEARCH AB, Uppsala, SE;
Abstract
There is provided a method and corresponding system for determining phase adjustment filters for an associated sound generating system including at least two audio reproduction channels Cand Cwhere each of the audio reproduction channels Cand Chas an input signal and at least one loudspeaker located in a listening environment. The method includes estimating, for each of the audio reproduction channels Cand C, an acoustic transfer function at each of M≥1 spatial positions in the listening environment, based on sound measurements at the spatial positions; and determining, based on the acoustic transfer functions, phase adjustment filters Fand to be applied, respectively, to the audio reproduction channels Cand C, to reduce the inter-loudspeaker differential phase, IDP, between the audio reproduction channels Cand Cin p listener positions.