Apparent auditory source width of virtually widened sound sources
* Presenting author
The apparent auditory source width (ASW) is one of the key spatial properties of sound sources, and is often modified by decorrelating the time-domain signal. The present study investigates ASW of sound sources with variable physical width. These are constructed by superposition of coherently radiating point sources along a line of variable width using head-related transfer functions (HRTFs).The approach was investigated in a preliminary listening test. Perceived position and apparent source width were indicated in a graphical user interface. Initial results suggest that the perceived source width correlates only weakly with the physical source width generated via HRTFs. A stronger, negative, correlation was observed for the perceived distance of the sound source. The reasons for the poor ability to judge physical source width are under investigation.