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Binaural rendering from microphone array signals of arbitrary geometry
[article]
2021
arXiv
pre-print
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We propose a method based on harmonic analysis of infinite order, which allows the use of arbitrarily placed microphones. ...
To reproduce binaural signals from microphone array recordings at a remote location, a spherical microphone array is generally used for capturing a soundfield. ...
We propose a method based on harmonic analysis of infinite order, which allows the use of arbitrarily placed microphones. ...
arXiv:2109.07274v1
fatcat:nz7mvhujuvckfoklt63jlvkvem
MeshRIR: A Dataset of Room Impulse Responses on Meshed Grid Points For Evaluating Sound Field Analysis and Synthesis Methods
[article]
2021
arXiv
pre-print
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Therefore, MeshRIR is suitable for evaluating sound field analysis and synthesis methods. This dataset is freely available at https://sh01k.github.io/MeshRIR/ with some codes of sample applications. ...
On the other hand, methods of estimating or controlling spatial sound fields have been extensively investigated in recent years; however, the current IR datasets are not applicable to validating and comparing ...
We here apply the spherical harmonic analysis of infinite order [14, 15] to the estimation of the pressure distribution. ...
arXiv:2106.10801v2
fatcat:oansgmc2crhwzibsl47gjnmt3m
Time Domain Spherical Harmonic Processing with Open Spherical Microphones Recording
2021
Applied Sciences
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Spherical harmonic analysis has been a widely used approach for spatial audio processing in recent years. ...
The time domain coefficients contain the continuous spatial information of the residual sound field. ...
In this paper, we propose a FIR filter based time domain spherical harmonic analysis method to accurately record spatial sound fields with an open spherical microphone array for the purpose of spatial ...
doi:10.3390/app11031074
fatcat:w7va7iz65nfzthp6yrjrgpi5t4
Spherical Harmonic Signal Covariance and Sound Field Diffuseness
[article]
2016
arXiv
pre-print
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We present a new measure of diffuseness, the COMEDIE diffuseness estimate, which is based on the analysis of the SH signal covariance matrix. ...
In particular, the signals recorded by an SMA can be analyzed in the spherical harmonic (SH) domain, which has special and desirable mathematical properties when it comes to analyzing diffuse sound fields ...
Index Terms-Spherical Microphone Arrays, Diffuseness, Spatial Sound Field Analysis, Spherical harmonics.
I. ...
arXiv:1607.00211v1
fatcat:qid33anq2nh5zjtvtug752tf4y
Sparsity-based sound field reconstruction
2020
Acoustical Science and Technology
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Estimating and interpolating a sound field from measurements using multiple microphones are fundamental tasks in sound field analysis for sound field reconstruction. ...
In this paper, we present an overview of sparsitybased sound field reconstruction methods and also demonstrate their application to sound field recording and reproduction. ...
infinite order [21] . ...
doi:10.1250/ast.41.269
fatcat:gpcuxjghungaroo75i4h4xirgm
Analysis and design of spherical microphone arrays
2005
IEEE Transactions on Speech and Audio Processing
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Spherical microphone arrays have been recently studied for sound-field recordings, beamforming, and sound-field analysis which use spherical harmonics in the design. ...
This paper presents a spherical-harmonics-based design and analysis framework for spherical microphone arrays. ...
INTRODUCTION R ECENT studies of spherical microphone arrays embraced a wide range of applications, including sound-field recordings, beamforming for speech enhancement, and sound-field analysis. ...
doi:10.1109/tsa.2004.839244
fatcat:emeepep4cjg5jpycei3rt2ruxm
Evaluation of spatial active noise cancellation performance using spherical harmonic analysis
2016
2016 IEEE International Workshop on Acoustic Signal Enhancement (IWAENC)
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The proposed metric allows convenient evaluation of spatial ANC performance using a spherical microphone array. ...
We show that the acoustic potential energy within a spherical region can be expressed by a weighed squared sum of spherical harmonic coefficients. ...
We use a spherical harmonics based algorithm to monitor the noise field, and calculate the acoustic potential energy within a spherical control region using a weighed squared sum of spherical harmonic ...
doi:10.1109/iwaenc.2016.7602968
dblp:conf/iwaenc/ChenZSA16
fatcat:jbmexrzkurbltgvilgox3hsz3m
Direct-to-Reverberant Energy Ratio Estimation Using a First-Order Microphone
2017
IEEE/ACM Transactions on Audio Speech and Language Processing
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Then, a method to estimate the values of these two parameters using a microphone system capable of capturing first order spherical harmonics is proposed, under three assumptions which are more realistic ...
Index Terms-Direct-to-Reverberant Energy Ratio, higher order microphone, spherical harmonics, spherical microphone array. ...
In the context of spatial sound field recording based on spherical harmonics decomposition, a first order microphone is a microphone system which is capable of acquiring the 0th and 1st order spherical ...
doi:10.1109/taslp.2016.2601222
fatcat:tqibjhunivgvnbnmpbyggbplfu
Using beamforming and binaural synthesis for the psychoacoustical evaluation of target sources in noise
2008
Journal of the Acoustical Society of America
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A scaling of SHB was theoretically derived to estimate the free-field pressure at the center of a spherical microphone array and verified by comparing simulated frequency response functions with directly ...
measured ones. ...
ACKNOWLEDGMENTS The experiments were carried out while the first two authors were at the "Sound Quality Research Unit" ͑SQRU͒ at Aalborg University. ...
doi:10.1121/1.2822669
pmid:18247894
fatcat:6xmflgf2y5dhhla43ylg5pxr2i
Investigation on Localisation Accuracy for First and Higher Order Ambisonics Reproduced Sound Sources
2013
Acta Acustica united with Acustica
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Based on a spherical harmonic decomposition, the sound field is more precisely described when higher-order components are used. ...
The presented study evaluated the sound field reproduced with four microphones of order one to four, perceptively and objectively in terms of localisation accuracy. ...
Most perceptive studies are based on evaluating the reproduced sound field using a first order microphone [19, 28, 59, 29, 5] . ...
doi:10.3813/aaa.918643
fatcat:ysxcnpmgsjfm7pirtd7j2fl3ve
A wavenumber approach to quantifying the isotropy of the sound field in reverberant spaces
2018
Journal of the Acoustical Society of America
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A wavenumber approach to quantifying the isotropy of the sound field in reverberant spaces. ...
Yet, the analysis in the spherical harmonic domain is performed on the recorded signals directly (rather than on the wavenumber spectrum), requiring the use of a spherical array of microphones. ...
Epain and Jin 18 suggested characterizing diffuseness based on the analysis of the spherical harmonic covariance matrix. ...
doi:10.1121/1.5032194
pmid:29716245
fatcat:kzbaidrrtrhmxgaxhershzeu6y
Higher-Order Ambisonic Microphones and the Wave Equation (Linear, Lossless)
[chapter]
2019
Genome Data Analysis
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To prepare for higher-order Ambisonic recording based on arrays, we first need a model of the sound pressure that the individual transducers of such an array would receive in an arbitrary surrounding sound ...
Therefore nowadays, higher-order Ambisonic recording with compact devices is based on compact spherical arrays of pressure transducers. ...
Discrete Sound Pressure Samples in Spherical Harmonics To determine the Ambisonics signals χ nm , we obviously need to find ψ nm based on all sound pressure samples p(θ i ) recorded by the microphones ...
doi:10.1007/978-3-030-17207-7_6
fatcat:chudrbhxrfecvd3gxofojk2vii
Challenges in deploying a microphone array to localize and separate sound sources in real auditory scenes
2015
2015 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)
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In this paper, we exploit two such methods using a microphone array: (1) Bayesian nonparametric microphone array processing (BNP-MAP), which is capable of separating and localizing sound sources when the ...
Analyzing the auditory scene of real environments is challenging partly because an unknown number and type of sound sources are observed at the same time and partly because these sounds are observed on ...
Reiji Suzuki of Nagoya University for giving a recording of the bird-chorus. ...
doi:10.1109/icassp.2015.7178064
dblp:conf/icassp/BandoOIYSKO15
fatcat:qq3byjsjqvedzgzid6mrr2mvmy
How to design a delay-and-sum beamformer for rigid rotationally symmetric arrays?
2012
2012 Conference Record of the Forty Sixth Asilomar Conference on Signals, Systems and Computers (ASILOMAR)
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For the first one we show which approximations have to be made in terms of applying techniques that are equivalent to delay-and-sum beamforming on rigid microphone arrays. ...
In this paper we present two novel techniques with low computational complexity and high robustness for beamforming using rigid microphone arrays. ...
expansion coefficients of the observed sound field in terms of circular / spherical harmonics. ...
doi:10.1109/acssc.2012.6488990
dblp:conf/acssc/HelwaniSB12
fatcat:thvkk2pp2baedd3uyzvyr6w6pu
Perceptual evaluation of headphone auralization of rooms captured with spherical microphone arrays with respect to spaciousness and timbre
2019
Journal of the Acoustical Society of America
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in different rooms and a headphone-based headtracked auralization of a spherical microphone array recording of the same scenario. ...
Rigid-sphere arrays with different amounts of microphones ranging from 50 to up to 1202 were emulated through sequential measurements, and spherical harmonics orders of up to 12 were tested. ...
ACKNOWLEDGMENTS We thank all our subjects of their voluntary participation and Ina Wechsung for advice on the statistical analysis. ...
doi:10.1121/1.5096164
pmid:31046319
fatcat:plaaw222pff7xoposqpyzsh7km
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