A database of Head-Related Transfer Functions in whole directions on upper hemisphere.

Takane, Shouichi; Arai, Daisuke; Miyajima, Tohru; Watanabe, Kanji; Suzuki, Yôiti; Sone, Toshio

doi:10.1250/ast.23.160

Cited by 13 publications

(19 citation statements)

References 4 publications

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“…As HRTFs for each phantom sound source on the VS boundary, some databases are publically available [24,25] for example.…”

Section: Synthesis Of Transfer Functionsmentioning

confidence: 99%

“…For HRTFs of dummy heads and certain subjects, there exist some databases measured in anechoic rooms [24,25]. Moreover, the estimation of HRTFs using Boundary Element Method (BEM) is discussed [27][28][29][30].…”

Section: Overview Of Advisementioning

confidence: 99%

“…Since these transfer functions are not obtained as their functional forms, their changes are adjusted by the interpolation in the functions measured (or computed) at discrete points. As for the HRTFs for the points on the VS boundary, some databases of HRTFs open in public are available [24,25]. However, not only h but also h þ and h À are also needed in the VS model.…”

Section: Other Processings In Advisementioning

confidence: 99%

See 2 more Smart Citations

A new theory for high definition virtual acoustic display named ADVISE*

Takane

Suzuki

Miyajima

et al. 2003

Acoust. Sci. & Tech.

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Abstract:A new theory for high definition Virtual Acoustic Display (VAD) based on a model called the ''Virtual Sphere (VS) model'' is introduced in this paper. This method is named ADVISE (Acoustic Display based on the VIrtual SpherE model). In ADVISE, a sphere-shaped boundary is defined around a listener, and the sound transmission from the sound source in the original field to the entrances of the listener's ears is divided into two parts. One consists of Head-Related Transfer Functions (HRTFs) corresponding to the points on the boundary of the virtual sphere, and the other consists of Room Transfer Functions (RTFs) from the sound source to the points on the boundary. Then, these two kinds of transfer functions are convolved in real-time, taking into account the dynamic changes in these functions due to the listener's head movement. The Kirchhoff-Helmholtz boundary integral equation is the theoretical basis of this idea. This equation represents that a sound field generated by sound sources outside a certain closed boundary can be synthesized by phantom monopole and dipole sources distributed on the boundary. In this paper, the theory of ADVISE is stated, then the features of ADVISE are described.

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“…As HRTFs for each phantom sound source on the VS boundary, some databases are publically available [24,25] for example.…”

Section: Synthesis Of Transfer Functionsmentioning

confidence: 99%

Section: Overview Of Advisementioning

confidence: 99%

Section: Other Processings In Advisementioning

confidence: 99%

See 1 more Smart Citation

A new theory for high definition virtual acoustic display named ADVISE*

Takane

Suzuki

Miyajima

et al. 2003

Acoust. Sci. & Tech.

Self Cite

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show abstract

“…Recent advances in technologies for measurement [17] and computation [18][19][20][21][22][23][24][25] are now allowing us to obtain individual HRTFs for dense sets of positions. Moreover, individual HRTF datasets are available in public databases reported in [26][27][28][29].…”

Section: Introductionmentioning

confidence: 99%

Design theory for binaural synthesis: Combining microphone array recordings and head-related transfer function datasets

Salvador

Sakamoto

Treviño

et al. 2017

Acoust. Sci. & Tech.

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Signal processing methods that accurately synthesize sound pressure at the ears are important in the development of spatial audio devices for personal use. This paper reviews the current methods and focuses on a promising class of these methods that rely on combining the spatial information available in microphone array recordings and datasets of head-related transfer functions (HRTFs). These two kinds of spatial information enable the consideration of dynamic and individual auditory localization cues during binaural synthesis. A general formulation for such a class of methods is presented in terms of a linear system of equations, whose associated matrix is composed of acoustic transfer functions that relate the positions of microphones and HRTFs. Based on this formulation, it is shown that most of the existing methods under consideration can be classified into two prominent approaches: 1) the HRTF modeling approach and 2) the microphone signal modeling approach. An important relation between these two approaches is evidenced in the general formulation: when one approach arises from the solution to an overdetermined system, the other corresponds to an underdetermined system, and vice versa. Illustrative examples of binaural synthesis from spherical arrays are provided by means of simulations. Underdetermined systems generally achieve better performance than overdetermined ones.

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“…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%