Hrtf Filter Design Based on Auditory Criteria
نویسنده
چکیده
Auralization and binaural technology is a strongly growing field in acoustics and audio signal processing [1]. Measurements and models of head-related transfer functions (HRTF) of human subjects or dummy heads are the source of information for the research of auralization and spatial hearing (see, e.g., [2], for a good review on these subjects). The information contained in HRTFs measured at various azimuth and elevation angles is sufficient for synthesizing realistic three-dimensional sound events for headphone or loudspeaker listening. One of the problems in binaural synthesis is the computational load of accurate HRTF calculation. To overcome this problem, both computationally efficient and perceptually relevant digital models of HRTFs have to be created.
منابع مشابه
Comparison of Digital Filter Design Methods for 3-D Sound
In this paper, we will compare filter design methods for binaural and transaural processing. Most of the HRTF filter design techniques use a linear frequency scale approach with additional weighting functions in some cases. The human ear, however, processes the auditory information according to a nonuniform critical band frequency resolution. We have presented new methods for HRTF filter design...
متن کاملReview of Digital Filter Design and Implementation Methods for 3-D Sound
In this paper, we discuss methods for digital filter design with application to 3-D sound. A review of existing filter design methods for binaural and transaural processing is presented. New methods that take into account the nonuniform frequency resolution of the human ear are explored. Listening tests have been performed to determine the subjective preference of different designs. 0 INTRODUCT...
متن کاملEvaluating HRTF Similarity through Subjective Assessments: Factors that can Affect Judgment
This work investigates the associations between objectively measured distance metrics and subjective assessments of similarity in HRTF data. For this purpose two different means of matching users to HRTF sets were compared: a simple system computing correlations between personally collected HRTF data and a repository of 111 measured binaural datasets, and an HRTF user-preference study assessing...
متن کاملObjective and Subjective Evaluation of Head - RelatedTransfer Function Filter
In this paper, the problem of modeling head-related transfer functions (HRTFs) is addressed. Traditionally, HRTFs are approximated in real-time applications using minimum-phase reconstruction and various digital lter design techniques, yielding FIR or IIR structures. In this work, binaural auditory modeling has been applied to HRTF analysis and lter design methods have been compared from the au...
متن کاملHorizontal plane HRTF reproduction using continuous Fourier-Bessel functions
This paper proposes a method to reproduce the Head Related Transfer Function (HRTF) in the horizontal auditory scene. The method is based on a separable representation which consists of a Fourier Bessel series expansion for the spectral components and a conventional Fourier series expansion for the spatial dependence. The proposed representation can be used to predict HRTFs at any azimuth posit...
متن کامل