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Time-Difference Of Arrival Model For Spherical Microphone Arrays And Application To Direction Of Arrival Estimation

Joonas Nikunen, Tuomas Virtanen
2018 Zenodo  
Publication in the conference proceedings of EUSIPCO, Kos island, Greece, 2017  ...  For the delay based processing we propose a time-difference of arrival (TDOA) model for microphones on a surface of a rigid sphere.  ...  Time-difference of arrival on a surface of a rigid sphere The geometric interpretation of proposed model equals to well known Woodworth model [11] , [12] for computing interaural time-difference between  ... 
doi:10.5281/zenodo.1159684 fatcat:wapvzdvrbrdejcbqe4akzrvvri

Acoustic Sources Localization in 3D Using Multiple Spherical Arrays

Fangzhou Wang, Xi Pan
2016 Journal of Electrical Engineering and Technology  
Simulation results show that the multiple spherical arrays can provide a more accurate direction of arrival (DOA) estimation for the multiple sources than that of a single spherical array, distinguish  ...  Direction of arrival (DOA) estimation of multiple sources using sensor arrays has been widely studied in the last few decades, particularly, the spherical harmonic analysis utilizing a spherical array.  ...  For different SNR, simulations are operated of 200 times in order to get RMSE and estimation probability.  ... 
doi:10.5370/jeet.2016.11.3.759 fatcat:neakybjpg5bfzbngfi5gyq37se

Bayesian Inference for Acoustic Direction of Arrival Analysis Using Spherical Harmonics

Ning Xiang, Christopher Landschoot
2019 Entropy  
This work applies two levels of inference within a Bayesian framework to accomplish estimation of the directions of arrivals (DoAs) of sound sources.  ...  The sensing modality is a spherical microphone array based on spherical harmonics beamforming.  ...  Acknowledgments: The authors are grateful to Jonathan Kawasaki, Stephen Weikel, and Jonathan Matthews for their collaborative support in the instrumentation of spherical harmonics microphone arrays.  ... 
doi:10.3390/e21060579 pmid:33267293 fatcat:ag62g5nv6rgedjgvz3nabn5zvi

Spherical microphone array acoustic rake receivers

Hamza A. Javed, Alastair H. Moore, Patrick A. Naylor
2016 2016 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)  
Several signal independent acoustic rake receivers are proposed for speech dereverberation using spherical microphone arrays.  ...  Index Terms-Acoustic rake receiver, spherical microphone array, spherical harmonic domain, dereverberation.  ...  arriving at the array from different directions.  ... 
doi:10.1109/icassp.2016.7471647 dblp:conf/icassp/JavedMN16 fatcat:nztytodcurhwxc7vcrrdprb44a

Identification of the Room Characteristics Using a Spherical Microphone Array

Frederico Heloui De Araujo, Julio Cesar Boscher Torres, Fernando Augusto De Noronha Castro Pinto
2019 Proceedings of the ICA congress  
The geometry of main room surfaces is obtained by identifying the time of arrival and direction of the direct sound and first reflections.  ...  This work proposes the use of a Spherical Microphone Array (SMA) aiming not only to localize sound sources, but also the characteristics of the environment, such as dimensions and baffles positions.  ...  ACKNOWLEDGEMENTS The authors would like to thank the Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ) and Coordenação de Aperfeiçoamento de Pessoal de Nível Superior  ... 
doi:10.18154/rwth-conv-239383 fatcat:kllig5majrfxvdl53iwzbezj4a

An Acoustic Localization System Using Microphone Array for Mobile Robot

Peng Yang, Hao Sun, Linan Zu
2009 International Journal of Intelligent Engineering and Systems  
According to the plane wave model of sound's propagation and the spherical wave model of sound's propagation, two different localization algorithms based on time delay of arrival are developed in this  ...  So an acoustic localization system using microphone array for mobile robot is proposed in this paper.  ...  Two different localization algorithms based on time delay of arrival are developed to guarantee the rapidity and accuracy of the system in this paper.  ... 
doi:10.22266/ijies2009.1231.03 fatcat:2qr5qn6ofbhxxazljago373mti

Multichannel equalisation for high-order spherical microphone arrays using beamformed channels

Alastair H. Moore, Christine Evers, Patrick A. Naylor
2015 2015 IEEE International Conference on Digital Signal Processing (DSP)  
In a second realisation, which is not limited to spherical microphone arrays, beams are pointed in the direction of dominant reflections.  ...  High-order spherical microphone arrays offer many practical benefits including relatively fine spatial resolution in all directions and rotation invariant processing using eigenbeams.  ...  In this paper we are specifically concerned with the application of MCEQ methods to Spherical Microphone Arrays (SMAs), although some of the results may be generalised to arbitrary microphone arrays.  ... 
doi:10.1109/icdsp.2015.7252072 dblp:conf/icdsp/MooreEN15 fatcat:4mcw3kgdp5hvnclvsrh5bviaui

Microphone Array and Raspberry Pi Interfacing for Real-time DOA Estimation and Tracking of Audio Sources

Ashish Patwari
2020 International Journal of Emerging Trends in Engineering Research  
Microphone arrays are commonly used for Direction of Arrival (DOA) estimation of audio sources.  ...  A commercially available microphone array assembly (consisting of four microphones) has been interfaced to Raspberry Pi 3B for estimating the arrival angles of audio/sound/acoustic sources.  ...  Different techniques such as Time of Arrival (TOA) estimation, Time difference of Arrival (TDOA) method, DOA estimation and Steered response power (SRP) beamforming methods are available for audio localization  ... 
doi:10.30534/ijeter/2020/82852020 fatcat:pxm6irh5ejdjzoz64ghluf57ai

A model for the temporal evolution of the spatial coherence in decaying reverberant sound fields

Sam Nees, Andreas Schwarz, Walter Kellermann
2015 Journal of the Acoustical Society of America  
The model includes the spherically isotropic (diffuse) and cylindrically isotropic sound field models as special cases.  ...  The modeled coherence function depends on room dimensions, surface reflectivity and orientation of the sensor pair, but is independent of the position of source and sensors in the room.  ...  Fig. 2 and Fig. 3 show the coherence of the simulated room impulse response for two different orientations of the microphone array, in comparison to the ideal isotropic models and the proposed model.  ... 
doi:10.1121/1.4929733 pmid:26428821 fatcat:6ywnb7hzvnb3jmf4hg4fk4qiou

Estimating the Direct-to-Reverberant Energy Ratio Using a Spherical Harmonics-Based Spatial Correlation Model

Prasanga N. Samarasinghe, Thushara D. Abhayapala, Hanchi Chen
2017 IEEE/ACM Transactions on Audio Speech and Language Processing  
In this paper, we present a multi-channel algorithm, which utilizes the blind recordings of a spherical microphone array to estimate the DRR of interest.  ...  The direct and reverberant sound energies are estimated from the aforementioned spatial correlation model, which then leads to the DRR estimation.  ...  Our goal is to estimate the above ratio utilizing the spherical microphone array recordings.  ... 
doi:10.1109/taslp.2016.2633811 fatcat:bbc2qynjbfh3ba756kfioax3ve

Time-domain effects of rigid sphere scattering on measurement of transient plane waves

Michael B. Muhlestein, Derek C. Thomas, Kent L. Gee
2014 Journal of the Acoustical Society of America  
An application of the impulse response function to a rocket noise measurement is discussed.  ...  The impulse response function shows that the presence of the rigid sphere significantly affects the measurement and estimation of rocket-noise waveforms, power spectral densities, and statistical measures  ...  The rise time of a shock is the difference between the time of arrival of the peak of a shock and the time of arrival of the base of the shock.  ... 
doi:10.1121/1.4883381 pmid:24993191 fatcat:mumwz4cyife7peaj6k245wgmwi

Acoustic Source Localization and Navigation Robot

2019 International Journal of Engineering and Advanced Technology  
On a complete car chassis, three microphones were mounted and used to determine the direction towards the sound source.  ...  After this movement a comparison was made between the robot's direction and the actual direction of the sound source.  ...  When sound is made, and detected by these microphones, the time of arrival is recorded and the difference in time of arrival is calculated on basis of arduino timing.  ... 
doi:10.35940/ijeat.f8986.088619 fatcat:4iekwfwkdzc5rlk6npv7ejj3cm

Method for dereverberation and noise reduction using spherical microphone arrays

Yotam Peled, Boaz Rafaely
2010 2010 IEEE International Conference on Acoustics, Speech and Signal Processing  
The method is designed for a spherical microphone array, and formulated in the spherical harmonics domain, based on an acoustic model that is also formulated in the spherical harmonics domain.  ...  Noise reduction is further performed by a linearly constrained minimum variance filter, where the array output power is minimized with constraint of distortionless response to the direct sound.  ...  The method is implemented on a spherical microphone array, and uses formulation of the acoustic model in the spherical harmonics domain, which assumes a finite number of plane-waves arriving at the array  ... 
doi:10.1109/icassp.2010.5496154 dblp:conf/icassp/PeledR10 fatcat:zjd5r54vezcihgfry5dpqaqqla

Speaker tracking with spherical microphone arrays

John McDonough, Kenichi Kumatani, Takayuki Arakawa, Kazumasa Yamamoto, Bhiksha Raj
2013 2013 IEEE International Conference on Acoustics, Speech and Signal Processing  
In prior work, we investigated the application of a spherical microphone array to a distant speech recognition task.  ...  In that work, the relative positions of a fixed loud speaker and the spherical array required for beamforming were measured with an optical tracking device.  ...  For conventional microphone arrays, speaker tracking is typically performed by estimating time delays of arrival (TDOAs) between pairs of microphones using the phase transform [7] or adaptive eigenvalue  ... 
doi:10.1109/icassp.2013.6638406 dblp:conf/icassp/McDonoughKAYR13 fatcat:n4jrzlphqfcdhhag24evzt4j2a

Direction of Arrival Estimation Using the Parameterized Spatial Correlation Matrix

Jacek Dmochowski, Jacob Benesty, Sofine Affes
2007 IEEE Transactions on Audio, Speech, and Language Processing  
Methods based on the time-differences-of-arrival (TDOA) are commonly used to determine the azimuth angle of arrival of an acoustic source.  ...  The estimation of the direction-of-arrival (DOA) of one or more acoustic sources is an area that has generated much interest in recent years, with applications like automatic video camera steering and  ...  They would also like to thank the anonymous reviewers for improving the clarity and quality of the manuscript.  ... 
doi:10.1109/tasl.2006.889795 fatcat:4qdmnw3ovvfkfaoym3iy26in4q
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