The CIPIC HRTF database

Algazi, V. Ralph; Duda, Richard O.; Thompson, Dennis; Avendaño, Carlos

doi:10.1109/aspaa.2001.969552

Cited by 666 publications

(573 citation statements)

References 6 publications

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“…The HRTF measurements were made in the anechoic chamber of U. C. Davis CIPIC Interface Laboratory. It provides head-related impulse responses for 45 subjects at 1,250 positions around each subject [17]. The impulse response of each HRTF measurement is 200 taps long at the sample rate 44.1 kHz.…”

Section: Experiments Of Interpolation With Cipic Hrtfmentioning

confidence: 99%

Head-related transfer function interpolation through multivariate polynomial fitting of principal component weights

Wang

Yin

Chen

2009

Acoust. Sci. & Tech.

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Head-related transfer function (HRTF) interpolation plays an important role for implementation of 3D sound system because it can not only reduce the number of measurements for HRTFs, but also reduce the data of HRTFs for seamless binaural synthesis. This paper addresses the problem of accurately realizing the interpolation of HRTF for synthesis of virtual auditory space, and proposes a HRTF interpolation method based on principal component analysis. Firstly, the HRTF is decomposed into principal components and corresponding principal component weights, where principal components are direction-independent and principal component weights are directiondependent; then the directional variation of the principal component weight is multivariate polynomial fitted with a bivariate function of two spatial angulus (azimuth and elevation). Moreover, a spherepartitioning optimization scheme is employed to improve the approximation precision. Experiment results demonstrate that HRTFs in the entire sphere surface can be interpolated by the proposed method with small distortion, and the proposed method performs better than conventional methods. Therefore the proposed method gives a promising way for HRTF interpolation.

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Section: Experiments Of Interpolation With Cipic Hrtfmentioning

confidence: 99%

Head-related transfer function interpolation through multivariate polynomial fitting of principal component weights

Wang

Yin

Chen

2009

Acoust. Sci. & Tech.

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“…Most of these systems rely on a public domain database of highspatial-resolution HRTF [6]. Using such a database, implies storing it into the target execution platform.…”

Section: Related Workmentioning

confidence: 99%

“…We have searched successful models of such physical concepts, starting with [7], where Rayleigh gives us the prime of Psychoacoustics. Most of our model was inspired by the various works of Algazi, Brown and Duda [8][9][10][11][12][13] ,who have much contributed to the field. Their models use simplistic filters perfectly suitable for low-cost and satisfying results.…”

Section: Related Workmentioning

confidence: 99%

A Structural Parametric Binaural 3D Sound Implementation Using Open Hardware

Silva

Götz

2013

IFIP Advances in Information and Communication Technology

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Abstract. Most binaural 3D sound implementations use large databases with pre-recorded transfer functions, which are mostly prohibitive for real time embedded applications. This article focus on a parametric approach proposal, opening space for customizations and to add new processing blocks easily. In this work we show the feasibility of a parametric binaural architecture for dynamic sound localization in embedded platforms for mobile applications, ranging from multimedia and entertainment to hearing aid for individuals with visual disabilities. The complete solution, ranging from algorithms analysis and suiting, development using the Beagleboard platform for prototyping, and performance benchmarks, are presented.

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“…In the case of sagittal coordinates, a previous study reported that lateral angle had relations to interaural time difference (ITD) and interaural level difference (ILD) and that vertical angle contributed to the vertical perception [10]. HRTF measurement was also conducted in sagittal coordinates [2]. Therefore, it is importance to measure HRTFs in different coordinates from the horizontal coordinates.…”

Section: Introductionmentioning

confidence: 99%

“…HRTFs depend on the direction of sound source and subjects, and they have very complex acoustic characteristics. There were many studies on measuring HRTFs [1][2][3] and public HRTF databases [4][5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%