Abstract
Even though there is a vast body of literature on spatial hearing, little is known on how the location of a sound source affects its loudness. The pertinent research on head-related transfer functions(HRTFs) primarily deals with issues of localization and spatial discriminability. The literature on binaural loudness summation, on the other hand, focuses on a highly artificial paradigm according to which unnatural combinations of sound pressure levels(such as monotic-diotic comparisons) are presented to listeners via headphones. In order to reconcile these two approaches, we recently started a series of experiments determining the effect of sound incidence angle on loudness[1,2,3,4]. The basic experiment to be reported on here was conducted in an anechoic chamber, in which loudspeakers were mounted to present sounds from a number of directions both in the horizontal, and median planes. The subject’s task was to produce a loudness match to a frontal reference location, and matches were obtained via a two-interval adaptive forced-choice procedure. Narrow-band noises were used, in order to investigate the frequency-specific effects of direction on loudness. Furthermore, individual HRTFs were measured for each incidence angle, in order to relate the changes in actual at-ear exposure to the observed changes in loudness as a function of sound incidence. Combining the listening-test data with the physical measurements, an attempt was made to model the binaural summation underlying the directional loudness matches.
Translated title of the contribution | Richtungsabhängigkeit binauraler Lautheit |
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Original language | English |
Title of host publication | Fortschritte der Akustik DAGA '06 : 32. Deutsche Jahrestagung für Akustik |
Editors | Sabine Langer, Werner Scholl, Volker Wittstock |
Publisher | Deutsche Gesellschafft für Akustik e.V. (DEGA) |
Publication date | 2006 |
Pages | 75-76 |
ISBN (Print) | 3980865924 |
Publication status | Published - 2006 |
Event | DAGA '06 - Braunscweig, Germany Duration: 20 Mar 2006 → 23 Mar 2006 Conference number: 32 |
Conference
Conference | DAGA '06 |
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Number | 32 |
Country/Territory | Germany |
City | Braunscweig |
Period | 20/03/2006 → 23/03/2006 |