Objective measure for sound localization based on head-related transfer functions

Vladimir Tourbabin, Boaz Rafaely

פרסום מחקרי: פרק בספר / בדוח / בכנספרסום בספר כנסביקורת עמיתים

תקציר

Head-related transfer functions (HRTFs) are widely used in the study of the human auditory system. It is known that HRTFs contain spatial cues allowing individuals to localize sounds. Inter-aural phase and level differences, and high-frequency magnitude variations, are among the most common cues. While these cues require detailed analysis of specific HRTFs, in the current paper a new measure is proposed, based on the distribution of the singular values of the HRTF matrix, effectively representing the amount of information contained in the HRTFs as a function of frequency and arrival direction. This measure is generic, encompassing all cues in a single quantity. First, the validity of the proposed measure is justified theoretically. Then, the proposed measure is validated against empirically known results of human localization in the horizontal and median planes. The comparison is performed by taking into account two different aspects: (1) whether the information contained in the HRTFs is monaural or binaural, and (2) the variation of the minimum audible angle (MAA) and other localization measures as a function of azimuth and elevation. The results show that the proposed measure is in good agreement with the established theory of human sound localization and can be used as a predictor of the potential performance of human sound localization and of human-like systems such as humanoid robots.

שפה מקוריתאנגלית אמריקאית
כותר פרסום המארח2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel, IEEEI 2012
מזהי עצם דיגיטלי (DOIs)
סטטוס פרסוםפורסם - 1 דצמ׳ 2012
אירוע2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel, IEEEI 2012 - Eilat, ישראל
משך הזמן: 14 נוב׳ 201217 נוב׳ 2012

סדרות פרסומים

שם2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel, IEEEI 2012

כנס

כנס2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel, IEEEI 2012
מדינה/אזורישראל
עירEilat
תקופה14/11/1217/11/12

ASJC Scopus subject areas

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