Multiarray Eigenbeam-ESPRIT for 3D Sound Source Localization With Multiple Spherical Microphone Arrays

Choi, Jung‐Woo; Zotter, Franz; Jo, Byeongho; Yoo, Jae-Hyoun

doi:10.1109/taslp.2022.3183929

Cited by 9 publications

(3 citation statements)

References 53 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…where n is the number of data points, i x is the standardized isotopes vector for the i-th data point, and i y is the standardized independent variables vector for the i-th data point. [61]. CCA then sorts the eigenvalues in descending order and selects the top l eigenvectors associated with the l largest eigenvalues [62].…”

Section: Principal Component Analysis (Pca) and Canonical Correlation...mentioning

confidence: 99%

Temporal Trends and Spatial Relationships of Radioactive Isotopes (I-131, Cs-134, and Cs-137) in Response to Nuclear Events: A Comprehensive Analysis Using Time Series Graphs, Regression, and Multivariate Techniques

Nasution,

Ritonga,

Doyan

et al. 2023

Atom Indo.

View full text Add to dashboard Cite

This research aims to comprehend the evolution of radioactive isotopes Iodine-131 (I-131), Cesium-134 (Cs-134), and Cesium-137 (Cs-137) over time in diverse locations and analyze their relationships with the independent variables Longitude and Latitude using Linear Regression, Principal Component Analysis (PCA), and Canonical Correlation Analysis (CCA). The data used in this study were processed from the "DE.xlsx" file, including the imputation of missing values with 0 and column transformation into factors. The results of the Linear Regression analysis indicate a significant association between these isotopes and Longitude and Latitude. Additionally, PCA and CCA analyses reveal complex relationships between the isotopes and independent variables. This research provides valuable insights into the historical trends of radioactive isotopes Iodine-131 (I-131), Cesium-134 (Cs-134), and Cesium-137 (Cs-137) in various locations. The novel aspect and uniqueness of this study lie in the utilization of a comprehensive analytical approach, combining Linear Regression, PCA, and CCA to comprehend the relationships between isotopes and specific environmental factors. Moreover, this study significantly contributes to understanding the phenomena of radioactive isotopes and can serve as a foundation for further research in this field. The findings of this research are expected to support efforts in preventing and managing potential environmental and human health impacts of radioactive isotopes in the future.

show abstract

Section: Principal Component Analysis (Pca) and Canonical Correlation...mentioning

confidence: 99%

Temporal Trends and Spatial Relationships of Radioactive Isotopes (I-131, Cs-134, and Cs-137) in Response to Nuclear Events: A Comprehensive Analysis Using Time Series Graphs, Regression, and Multivariate Techniques

Nasution,

Ritonga,

Doyan

et al. 2023

Atom Indo.

View full text Add to dashboard Cite

show abstract

“…Some knowledge regarding the functionalities of a multichannel spherical array microphone is presented [4], as well as the principles of a beamforming process and the filtering process of virtual microphones [5]. Specifically, the elaboration of these maps does not follow any commercial package, but it has been improved at the University of Parma over the years since 2008-2010, when the outputs detected with simple circles the virtual microphones overlapped onto the panoramic photo.…”

Section: Introductionmentioning

confidence: 99%

3D Acoustic Map Analysis of the National Theatre of Zagreb

Tronchin,

Bevilacqua

2024

Applied Sciences

View full text Add to dashboard Cite

Rapid technological advances in recent decades have led researchers to refine the accuracy of their studies. In the field of acoustics, the impact of new devices is noticeable, especially in the investigations of cultural heritage buildings. The selection of a seat in theatres and concert halls has always been a concern, since the live experience of artistic performance depends on the quality of hearing and sight view. This paper deals with the elaboration of 360° acoustic maps made in the National Theatre of Zagreb, one of the opera theatres investigated with the Sipario project. The analysis of the main acoustic parameters has been carried out, starting with site measurements describing the acoustic response at various representative points of the main hall by covering the audience area. In addition, acoustic maps have been created for some selected positions based on a 3-degree-of-freedom (3dof) technique that allows a panoramic visualization of the impulse responses (IRs). This methodology completes the determination of early and late reflections that contribute to the acoustic quality of a place. In addition to the interest of experts in acoustics, this methodology can also be adopted by music lovers who can find a reasonable explanation for seat selection when booking their tickets.

show abstract

“…Multisource DOA estimation based on microphone arrays is a current research hotspot [1], and the estimation results are a priori knowledge for many acoustic applications such as speech separation [2], speech enhancement [3], and multisource localization [4]. A spherical microphone array has a three-dimensional symmetric structure, which allows us to estimate the orientation of a sound source at any position in three-dimensional space [5].…”

Section: Introductionmentioning

confidence: 99%

An Improved Two-Stage Spherical Harmonic ESPRIT-Type Algorithm

Zhou,

Liu,

Luo

et al. 2023

Symmetry

View full text Add to dashboard Cite

Sensor arrays are gradually becoming a current research hotspot due to their flexible beam control, high signal gain, robustness against extreme interference, and high spatial resolution. Among them, spherical microphone arrays with complex rotational symmetry can capture more sound field information than planar arrays and can convert the collected multiple speech signals into the spherical harmonic domain for processing through spherical modal decomposition. The subspace class direction of arrival (DOA) estimation algorithm is sensitive to noise and reverberation, and its performance can be improved by introducing relative sound pressure and frequency-smoothing techniques. The introduction of the relative sound pressure can increase the difference between the eigenvalues corresponding to the signal subspace and the noise subspace, which is helpful to estimate the number of active sound sources. The eigenbeam estimation of signal parameters via the rotational invariance technique (EB-ESPRIT) is a well-known subspace-based algorithm for a spherical microphone array. The EB-ESPRIT cannot estimate the DOA when the elevation angle approaches 90°. Huang et al. proposed a two-step ESPRIT (TS-ESPRIT) algorithm to solve this problem. The TS-ESPRIT algorithm estimates the elevation and azimuth angles of the signal independently, so there is a problem with DOA parameter pairing. In this paper, the DOA parameter pairing problem of the TS-ESPRIT algorithm is solved by introducing generalized eigenvalue decomposition without increasing the computation of the algorithm. At the same time, the estimation of the elevation angle is given by the arctan function, which increases the estimation accuracy of the elevation angle of the algorithm. The robustness of the algorithm in a noisy environment is also enhanced by introducing the relative sound pressure into the algorithm. Finally, the simulation and field-testing results show that the proposed method not only solves the problem of DOA parameter pairing, but also outperforms the traditional methods in DOA estimation accuracy.

show abstract

Multiarray Eigenbeam-ESPRIT for 3D Sound Source Localization With Multiple Spherical Microphone Arrays

Cited by 9 publications

References 53 publications

Temporal Trends and Spatial Relationships of Radioactive Isotopes (I-131, Cs-134, and Cs-137) in Response to Nuclear Events: A Comprehensive Analysis Using Time Series Graphs, Regression, and Multivariate Techniques

Temporal Trends and Spatial Relationships of Radioactive Isotopes (I-131, Cs-134, and Cs-137) in Response to Nuclear Events: A Comprehensive Analysis Using Time Series Graphs, Regression, and Multivariate Techniques

3D Acoustic Map Analysis of the National Theatre of Zagreb

An Improved Two-Stage Spherical Harmonic ESPRIT-Type Algorithm

Contact Info

Product

Resources

About