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Interpolation of head-related transfer functions by spatial linear prediction

Ryouichi Nishimura, Hiroaki Kato, Naomi Inoue
2009 2009 IEEE International Conference on Acoustics, Speech and Signal Processing  
Head-related transfer functions (HRTFs) are essential for creating a virtual sound source when sound waves are transmitted through headphones.  ...  In this study, HRTFs are measured with a high spatial resolution in order to develop an effective interpolation method.  ...  HEAD-RELATED TRANSFER FUNCTION Measurement HRIRs were measured for every 1˚-azimuth in order to analyze their spatial frequency characteristics.  ... 
doi:10.1109/icassp.2009.4959980 dblp:conf/icassp/NishimuraKI09 fatcat:77ci6q7mmnhyhoy3segz2vc5fi

Spatial up-sampling of HRTF sets using generative adversarial networks: A pilot study

Pongsakorn Siripornpitak, Isaac Engel, Isaac Squires, Samuel J. Cooper, Lorenzo Picinali
2022 Frontiers in Signal Processing  
Headphones-based spatial audio simulations rely on Head-related Transfer Functions (HRTFs) in order to reconstruct the sound field at the entrance of the listener's ears.  ...  Traditionally, spatial up-sampling of HRTF sets is achieved through barycentric interpolation or by employing the spherical harmonics framework.  ...  Such information is contained in an acoustic filter known as the head-related transfer function, which includes both interaural (different between the two ears) and spectral (i.e., the same at both ears  ... 
doi:10.3389/frsip.2022.904398 fatcat:cp7wwwnge5fk7e5zziciw2c7jy

Prediction of head-related transfer function based on tensor completion

Jing Wang, Min Liu, Xinyao Wang, Teijun Liu, Xiang Xie
2020 Applied Acoustics  
A new head-related transfer function (HRTF) prediction method using tensor completion is proposed to estimate the HRTF in unmeasured directions based on sparse measurements and achieve high spatial resolution  ...  The objective results suggest that the proposed method has a better prediction performance than other tensor and linear interpolation methods.  ...  The work in this paper is supported by the National Natural Science Foundation of China (No. 61571044, No. 11590772, No. 61473041 and No. 61620106002) and the State Key Laboratory of Robotics.  ... 
doi:10.1016/j.apacoust.2019.08.001 fatcat:xnwyxmtrmfhs3hrsju26fwso5e

Kernel regression for Head-Related Transfer Function interpolation and spectral extrema extraction

Yuancheng Luo, Dmitry N. Zotkin, Hal Daume, Ramani Duraiswami
2013 2013 IEEE International Conference on Acoustics, Speech and Signal Processing  
Head-Related Transfer Function (HRTF) representation and interpolation is an important problem in spatial audio.  ...  We present a kernel regression method based on Gaussian process (GP) modeling of the joint spatial-frequency relationship between HRTF measurements and obtain a smooth non-linear representation based on  ...  The quantitative measure of how the sound is modified by such scattering is called Head-Related Transfer Function (HRTF) [1] .  ... 
doi:10.1109/icassp.2013.6637648 dblp:conf/icassp/LuoZDD13 fatcat:2kkcvoik5janrju5lgfdy3rrky

A Comparative Study of Various Location Prediction and Interpolation Techniques

J. Ananthi, S. Nandhini, Dr. N. Sengottaiyan
2018 EAI Endorsed Transactions on Energy Web  
The paper finally produces a comparative study of those interpolation techniques and finding an optimal interpolation method for wireless sensor networks.  ...  Wireless Sensor and Actuator Networks are exploited to monitor the physical and environmental conditions and is preferred due to its cost effectiveness, faster data transfer and accurate computation of  ...  Linear Interpolation The linear interpolation is made by means of the change rate between the few identified values.  ... 
doi:10.4108/eai.12-9-2018.155741 fatcat:d7otzlzshzba3fcwqrfkxh6n7m

Spatial frequency response surfaces: an alternative visualization tool for head-related transfer functions (HRTFs)

C.I. Cheng, G.H. Wakefield
1999 1999 IEEE International Conference on Acoustics, Speech, and Signal Processing. Proceedings. ICASSP99 (Cat. No.99CH36258)  
Finally, these surfaces suggest an interpolation algorithm by which Directional Transfer Functions (DTF's) corresponding to arbitrary spatial locations can be computed from existing DTF measurements at  ...  This paper presents an alternative visualization tool for headrelated transfer functions (HRTF's) which represents HRTF data sets as magnitude spatial frequency response surfaces.  ...  Blommer for his early investigations of the interpolation problem.  ... 
doi:10.1109/icassp.1999.759854 dblp:conf/icassp/ChengW99 fatcat:wlfn6greczczbhjzyadwdxrtmu

Deep HRTF Encoding & Interpolation: Exploring Spatial Correlations using Convolutional Neural Networks

Devansh Zurale, Shahrokh Yadegari, Shlomo Dubnov
2022 Zenodo  
Such filters often are stored as a set of Head Related Impulse Responses (HRIRs) or in their frequency domain representations, Head Related Transfer Functions (HRTFs), for specific individuals.  ...  We hypothesize that these spatial correlations between the elements of an HRTF set could be learned using Deep Convolutional Neural Networks (DCNNs).  ...  These transfer functions, known as the Head Related Transfer Functions (HRTFs), or as their time domain representations, the Head Related Impulse Responses (HRIRs), are unique for every point in space,  ... 
doi:10.5281/zenodo.6573349 fatcat:htn47mlzenhflmrl7lyc72flni

Deep HRTF Encoding & Interpolation: Exploring Spatial Correlations using Convolutional Neural Networks

Devansh Zurale, Shahrokh Yadegari, Shlomo Dubnov
2022 Zenodo  
Such filters often are stored as a set of Head Related Impulse Responses (HRIRs) or in their frequency domain representations, Head Related Transfer Functions (HRTFs), for specific individuals.  ...  We hypothesize that these spatial correlations between the elements of an HRTF set could be learned using Deep Convolutional Neural Networks (DCNNs).  ...  These transfer functions, known as the Head Related Transfer Functions (HRTFs), or as their time domain representations, the Head Related Impulse Responses (HRIRs), are unique for every point in space,  ... 
doi:10.5281/zenodo.6798127 fatcat:cd64wrw76zgo5pa6mwlwwondwi

Audibility and Interpolation of Head-Above-Torso Orientation in Binaural Technology

Fabian Brinkmann, Reinhild Roden, Alexander Lindau, Stefan Weinzierl
2015 IEEE Journal on Selected Topics in Signal Processing  
Head-related transfer functions (HRTFs) incorporate fundamental cues required for human spatial hearing and are often applied to auralize results obtained from room acoustic simulations.  ...  Furthermore, we addressed the efficient representation of variable HATO in interactive acoustic simulations using spatial interpolation.  ...  spatial audio technologies.  ... 
doi:10.1109/jstsp.2015.2414905 fatcat:33ihg7hlejcivfvjiy6i47654a

Relative Transfer Function Inverse Regression from Low Dimensional Manifold [article]

Ziteng Wang, Emmanuel Vincent, Yonghong Yan
2017 arXiv   pre-print
In room acoustic environments, the Relative Transfer Functions (RTFs) are controlled by few underlying modes of variability. Accordingly, they are confined to a low-dimensional manifold.  ...  However, it fails to compete with the linear interpolation technique in small sampling distances.  ...  Note that the CAMIL dataset consists of binaural recordings that involves Head-Related Transfer Functions (HRTFs) and changes the definition of RTF inverse regression slightly.  ... 
arXiv:1710.09091v1 fatcat:gkp22f5r5fflvnndrw5iy2riwi

Data Augmentation for Brain-Computer Interfaces: Analysis on Event-Related Potentials Data [article]

Mario Michael Krell, Anett Seeland, Su Kyoung Kim
2018 arXiv   pre-print
Our results on the perception of rare stimuli (P300 data) and movement prediction (MRCP data) show that these approaches are feasible and can significantly increase the performance of signal processing  ...  chains for brain-computer interfaces by 1% to 6%.  ...  The data of the rotation is obtained by applying the interpolation based on radial basis functions Φ (RBF) like for example linear: r, cubic: r 3 , and quintic: r 5 [11] .  ... 
arXiv:1801.02730v1 fatcat:agujomerwvg3vezovvbqs4ibgm

Transfer function-noise modeling and spatial interpolation to evaluate the risk of extreme (shallow) water-table levels in the Brazilian Cerrados

Rodrigo L. Manzione, Martin Knotters, Gerard B. M. Heuvelink, Jos R. Von Asmuth, Gilberto Camara
2010 Hydrogeology Journal  
These simulated probabilities were interpolated spatially using universal kriging, incorporating information related to the drainage basin from a digital elevation model.  ...  By simulating time-series models, the risk of exceeding critical thresholds during a continuous period of time (e.g. 10 days) is described by probability levels.  ...  Acknowledgements The first author is grateful to CAPES Foundation/Brazil (Foundation for the Coordination of Higher Education and Graduating Training) and to WIMEK (Wageningen Institute for Environment  ... 
doi:10.1007/s10040-010-0654-5 fatcat:c4qookfsxjahrogapx3fp5l4k4

Improved method to individualize head-related transfer function using anthropometric measurements

Song Xu, Zhizhong Li, Gavriel Salvendy
2008 Acoustical Science and Technology  
The head-related transfer function (HRTF) is used to describe this physical transformation. However, the HRTF greatly varies from person to person.  ...  The PCA scores, which are considered as the weights of basis functions chosen to predict the HRTF, can be predicted by the regression of some anthropometric measurements.  ... 
doi:10.1250/ast.29.388 fatcat:zfghcp2n2zbq7eawq4kul6l6we

A spatial feature extraction and regularization model for the head‐related transfer function

Jiashu Chen, Barry D. Van Veen, Kurt E. Hecox
1995 Journal of the Acoustical Society of America  
A functional representation is proposed for complex valued (amplitude and phase) head-related transfer functions (HRTFs), including both frequency and spatial dependence.  ...  Any HRTF is represented as a weighted combination o:[ the EFs where the weights are functions of the HRTFs spatial location and are termed spatial characteristic functions (SCFs).  ...  INTRODUCTION Recent extensions of the classical duplex theory of binaural hearing have focused on measurement and study of the external ear's free-field-to-eardrum transfer functions or head-related transfer  ... 
doi:10.1121/1.413110 pmid:7860825 fatcat:pldlupzj5rcermrvr6curarq2a

Prediction of speech intelligibility using pseudo-binaural room impulse responses

Omid Kokabi, Fabian Brinkmann, Stefan Weinzierl
2019 Journal of the Acoustical Society of America  
Head orientation (HO) affects better-ear-listening and spatial-release-from-masking, which are two key aspects in binaural speech intelligibility.  ...  The accuracy of the Ambisonics/SDM approach was comparable to that of real BRIRs, indicating its suitability for speech intelligibility prediction.  ...  "The FABIAN head-related transfer function data base," available at 10.14279/ depositonce-5718.2. Fig. 1 . 1 Fig. 1. Sketch of the evaluated acoustic scenarios. Fig. 2 . 2 Fig. 2.  ... 
doi:10.1121/1.5099169 pmid:31046300 fatcat:osbma7hgrvfsjbgzptccujgc3i
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