Methodology and apparatus for determining psychoacoustical threshold curves

Michal Fereczkowski (Inventor), Ewen MacDonald (Inventor), Torsten Dau (Inventor)

Research output: Patent

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Abstract

The present invention relates in a first aspect to a method of determining a psychoacoustical threshold curve by selectively varying a first parameter and a second parameter of an auditory stimulus signal applied to a test subject/listener. The methodology comprises steps of determining a two-dimensional boundary region surrounding an a priori estimated placement of the psychoacoustical threshold curve to form a predetermined two-dimensional response space comprising a positive response region at a first side of the a priori estimated psychoacoustical threshold curve and a negative response region at a second and opposite side of the a priori estimated psychoacoustical threshold curve. A series of auditory stimulus signals in accordance with the respective parameter pairs are presented to the listener through a sound reproduction device and the listener's detection of a predetermined attribute/feature of the auditory stimulus signals is recorded such that a stimuli path through the predetermined two- dimensional response space is traversed. The psychoacoustical threshold curve is computed based on at least a subset of the recorded parameter pairs.

Original languageEnglish
IPCA61B 5/ 12 A I
Patent numberWO2016046079
Filing date31/03/2016
CountryInternational Bureau of the World Intellectual Property Organization (WIPO)
Priority date15/05/2015
Priority numberEP20150167840
Publication statusPublished - 31 Mar 2016

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