Spatial Frequency Response Surfaces (sfrs’s): an Alternative Visualization and Interpolation Technique for Head-related Transfer Functions (hrtf’s)
نویسندگان
چکیده
This paper introduces Spatial Frequency Response Surfaces (SFRS’s), an alternative, spatial-domain visualization tool for head-related transfer functions (HRTF’s). Qualitative analysis of SFRS’s is easier than direct comparison of HRTF magnitude responses, and reveals many cross-subject similarities in HRTF data corresponding to well-known HRTFrelated psychophysical phenomena. We present an SFRS-based HRTF interpolation algorithm, along with results of a psychophysical experiment comparing the perceptual quality of interpolated and non-interpolated HRTF’s.
منابع مشابه
Spatial frequency response surfaces: an alternative visualization tool for head-related transfer functions (HRTFs)
This paper presents an alternative visualization tool for headrelated transfer functions (HRTF’s) which represents HRTF data sets as magnitude spatial frequency response surfaces. Qualitative analysis of HRTF data is easier in the spatial domain than in the magnitude frequency domain and allows quick comparisons between different subjects’ HRTF sets. In addition, these surfaces exhibit many wel...
متن کاملINTRODUCTION TO HEAD-RELATED TRANSFER FUNCTIONS (HRTF’S): REPRESENTATIONS OF HRTF’S IN TIME, FREQUENCY, AND SPACE (invited tutorial)
This tutorial provides an introduction to Head-Related Transfer Functions (HRTF's) and their role in the synthesis of spatial sound over headphones. We define HRTF’s and discuss how they provide spectral cues which reduce the ambiguity with which the classical duplex theory decodes a free-field sound’s spatial location. We describe how HRTF’s are measured and how they are typically used to synt...
متن کاملA Tool for Volumetric Visualization and Sonification of Head- Related Transfer Functions (HRTF’s)
This letter documents the design and implementation of a tool which facilitates a new method of visualizing and sonifying Head-Related Transfer Function (HRTF) data sets. HRTF’s are empirically measured digital filters used in binaural spatialized audio systems which simulate the direction-dependant acoustic filtering properties of the human external ear. Because HRTF data sets are often report...
متن کاملInterpolation of Head Related Transfer Functions Considering Acoustics
We are proposing an interpolation technique for head related transfer functions (HRTFs). For deriving the algorithm we study the dual problem where sound is emitted from the listener’s ear and the generated sound field is recorded along a circular array of microphones around the listener. The proposed interpolation algorithm is based on the observation that spatial bandwidth of the measured sou...
متن کاملImmersive Sound Rendering Using Laser-based Tracking
In this paper we describe the underlying concepts behind the spatial sound renderer built at the University of Southern California’s Immersive Audio Laboratory. In creating this sound rendering system, we were faced with three main challenges. First the rendering of sound using the Head-Related Transfer Functions, second the cancellation of the crosstalk terms and third the localization of the ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 1999