Abstract
There are an increasing number of binaural systems embedded with
head-related transfer functions (HRTFs), so listeners can experience
virtual environments via conventional stereo loudspeakers or head- phones.
As HRTFs vary from person to person, it is difficult to select
appropriated HRTFs from already existing databases for users. Once the
HRTFs in a binaural audio device hardly match the real ones of the users,
poor localization happens especially on the cone of confusion. The most
accurate way to obtain personalized HRTFs might be doing practical
measurements. It is, however, expensive and time consuming. Modifying
non-individualized HRTFs may be an effort-saving way, though the
modifications are always accompanied by undesired audio distortion. This
paper proposes a flexible HRTF adjustment system for users to define their
own HRTFs. Also, the system can keep sounds from suffering intolerable
distortion based on an objective measurement tool for evaluating the
quality of processed audio.
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