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Journal articles on the topic 'Simultaneous Sound Sources'

Author: Grafiati

Published: 4 June 2021

Last updated: 20 February 2023

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1

Xiang, Ning, and Christopher Landschoot. "Bayesian Inference for Acoustic Direction of Arrival Analysis Using Spherical Harmonics." Entropy 21, no. 6 (2019): 579. http://dx.doi.org/10.3390/e21060579.

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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. When estimating the DoA, the acoustic signals may potentially contain one or multiple simultaneous sources. Using two levels of Bayesian inference, this work begins by estimating the correct number of sources via the higher level of inference, Bayesian model selection. It is followed by estimating the directional information of each source via the lower

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Frank, Matthias. "Source Width of Frontal Phantom Sources: Perception, Measurement, and Modeling." Archives of Acoustics 38, no. 3 (2013): 311–19. http://dx.doi.org/10.2478/aoa-2013-0038.

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Abstract Phantom sources are known to be perceived similar to real sound sources but with some differences. One of the differences is an increase of the perceived source width. This article discusses the perception, measurement, and modeling of source width for frontal phantom sources with different symmetrical arrangements of up to three active loudspeakers. The perceived source width is evaluated on the basis of a listening test. The test results are compared to technical measures that are applied in room acoustics: the inter-aural cross correlation coefficient (IACC) and the lateral energy

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Vannier, Michaël, and Etienne Parizet. "Loudness of a multi-tonal sound field, consisting of either one two-component complex sound source or two simultaneous spatially distributed sound sources." Journal of the Acoustical Society of America 136, no. 4 (2014): 2309. http://dx.doi.org/10.1121/1.4900356.

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Chen, Xiaohui, Hao Sun, and Heng Zhang. "A New Method of Simultaneous Localization and Mapping for Mobile Robots Using Acoustic Landmarks." Applied Sciences 9, no. 7 (2019): 1352. http://dx.doi.org/10.3390/app9071352.

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The simultaneous localization and mapping (SLAM) problem for mobile robots has always been a hotspot in the field of robotics. Simultaneous localization and mapping for robots using visual sensors and laser radar is easily affected by the field of view and ground conditions. According to the problems of traditional sensors applied in SLAM, this paper presents a novel method to perform SLAM using acoustic signals. This method enables robots equipped with sound sources, moving within a working environment and interacting with microphones of interest, to locate itself and map the objects simultan

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Suzuki, Takuya, Hiroaki Otsuka, Wataru Akahori, Yoshiaki Bando, and Hiroshi G. Okuno. "Influence of Different Impulse Response Measurement Signals on MUSIC-Based Sound Source Localization." Journal of Robotics and Mechatronics 29, no. 1 (2017): 72–82. http://dx.doi.org/10.20965/jrm.2017.p0072.

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[abstFig src='/00290001/07.jpg' width='300' text='Six impulse response measurement signals' ] Two major functions, sound source localization and sound source separation, provided by robot audition open source software HARK exploit the acoustic transfer functions of a microphone array to improve the performance. The acoustic transfer functions are calculated from the measured acoustic impulse response. In the measurement, special signals such as Time Stretched Pulse (TSP) are used to improve the signal-to-noise ratio of the measurement signals. Recent studies have identified the importance of s

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MARKOU, Dimitris. "Exploring spatial patterns of environmental noise and perceived sound source dominance in urban areas. Case study: the city of Athens, Greece." European Journal of Geography 13, no. 4 (2022): 60–78. http://dx.doi.org/10.48088/ejg.d.mar.13.2.060.078.

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The aim of the present study is to map spatial patterns related to noise pollution and the acoustic environment -in a broader context- in the urban area of Athens, Greece. The primary goal of this thesis is to present a comprehensive approach that combines elements of two basic methodologies related to acoustic environment studies: a) noise mapping and b) the soundscape approach. The main inputs are environmental noise measurements and perceptual sound source-related observations. The results feature three noise pollution maps (LAeq,30 sec, L10, and L90 indices) and three sound source maps whi

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Yaitskov, Ivan. "On the issue of formation the air noise component at workplaces of the diesel locomotives crews." MATEC Web of Conferences 224 (2018): 02024. http://dx.doi.org/10.1051/matecconf/201822402024.

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The article is devoted to the general acoustic system of the diesel locomotives which is a combination of the diverse noise and vibration sources creating the increased levels of the sound pressure in the workplaces of the machinists and locomotive crews. Factually, the sound field at the calculated points is created by the simultaneous action of the air and structural noise component sources. It is included the emitters to the sources of the air noise component which inboard the body structures and, accordingly, emit sound energy into the closed air volumes. And it is the sources which are se

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Folland, Nicole A., Blake E. Butler, Jennifer E. Payne, and Laurel J. Trainor. "Cortical Representations Sensitive to the Number of Perceived Auditory Objects Emerge between 2 and 4 Months of Age: Electrophysiological Evidence." Journal of Cognitive Neuroscience 27, no. 5 (2015): 1060–67. http://dx.doi.org/10.1162/jocn_a_00764.

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Sound waves emitted by two or more simultaneous sources reach the ear as one complex waveform. Auditory scene analysis involves parsing a complex waveform into separate perceptual representations of the sound sources [Bregman, A. S. Auditory scene analysis: The perceptual organization of sounds. London: MIT Press, 1990]. Harmonicity provides an important cue for auditory scene analysis. Normally, harmonics at integer multiples of a fundamental frequency are perceived as one sound with a pitch corresponding to the fundamental frequency. However, when one harmonic in such a complex, pitch-evokin

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Hu, Jwu-Sheng, Chen-Yu Chan, Cheng-Kang Wang, Ming-Tang Lee, and Ching-Yi Kuo. "Simultaneous Localization of a Mobile Robot and Multiple Sound Sources Using a Microphone Array." Advanced Robotics 25, no. 1-2 (2011): 135–52. http://dx.doi.org/10.1163/016918610x538525.

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Valin, Jean-Marc, François Michaud, and Jean Rouat. "Robust localization and tracking of simultaneous moving sound sources using beamforming and particle filtering." Robotics and Autonomous Systems 55, no. 3 (2007): 216–28. http://dx.doi.org/10.1016/j.robot.2006.08.004.

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Tanabe, Ryo, Yoko Sasaki, and Hiroshi Takemura. "Probabilistic 3D Sound Source Mapping System Based on Monte Carlo Localization Using Microphone Array and LIDAR." Journal of Robotics and Mechatronics 29, no. 1 (2017): 94–104. http://dx.doi.org/10.20965/jrm.2017.p0094.

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[abstFig src='/00290001/09.jpg' width='300' text='3D sound source environmental map' ] The study proposes a probabilistic 3D sound source mapping system for a moving sensor unit. A microphone array is used for sound source localization and tracking based on the multiple signal classification (MUSIC) algorithm and a multiple-target tracking algorithm. Laser imaging detection and ranging (LIDAR) is used to generate a 3D geometric map and estimate the location of its six-degrees-of-freedom (6 DoF) using the state-of-the-art gyro-integrated iterative closest point simultaneous localization and map

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Puyana-Romero, Virginia, Luigi Maffei, Giovanni Brambilla, and Daniel Nuñez-Solano. "Sound Water Masking to Match a Waterfront Soundscape with the Users’ Expectations: The Case Study of the Seafront in Naples, Italy." Sustainability 13, no. 1 (2021): 371. http://dx.doi.org/10.3390/su13010371.

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In the last decades, the soundscape approach has attracted the attention of architects and urban planners, leading them to incorporate the acoustic features into the enjoyment of their creations. One of the key aspects for an appreciated urban environment is to match the expectations of the users. In this study, the matching of the waterfront soundscape with the users’ expectations is evaluated by laboratory tests using semantic differential scales applied to reproduced virtual scenarios obtained adding different water sound pressure levels (SPLs) to the original in-situ setting. The tests wer

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Kleczkowski, Piotr. "Perception of Mixture of Musical Instruments with Spectral Overlap Removed." Archives of Acoustics 37, no. 3 (2012): 355–63. http://dx.doi.org/10.2478/v10168-012-0045-0.

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Abstract The issue of auditory segregation of simultaneous sound sources has been addressed in speech research but was given less attention in musical acoustics. In perception of concurrent speech, or speech with noise, the operation of time-frequency masking was often used as a research tool. In this work, an ex- tension of time-frequency masking, leading to the removal of spectro-temporal overlap between sound sources, was applied to musical instruments playing together. The perception of the original mixture was compared with the perception of the same mixture with all spectral overlap elec

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Ruppel, Carolyn D., Thomas C. Weber, Erica R. Staaterman, Stanley J. Labak, and Patrick E. Hart. "Categorizing Active Marine Acoustic Sources Based on Their Potential to Affect Marine Animals." Journal of Marine Science and Engineering 10, no. 9 (2022): 1278. http://dx.doi.org/10.3390/jmse10091278.

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Marine acoustic sources are widely used for geophysical imaging, oceanographic sensing, and communicating with and tracking objects or robotic vehicles in the water column. Under the U.S. Marine Mammal Protection Act and similar regulations in several other countries, the impact of controlled acoustic sources is assessed based on whether the sound levels received by marine mammals meet the criteria for harassment that causes certain behavioral responses. This study describes quantitative factors beyond received sound levels that could be used to assess how marine species are affected by many c

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Li, Han, Kean Chen, Lei Wang, Jianben Liu, Baoquan Wan, and Bing Zhou. "Sound Source Separation Mechanisms of Different Deep Networks Explained from the Perspective of Auditory Perception." Applied Sciences 12, no. 2 (2022): 832. http://dx.doi.org/10.3390/app12020832.

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Thanks to the development of deep learning, various sound source separation networks have been proposed and made significant progress. However, the study on the underlying separation mechanisms is still in its infancy. In this study, deep networks are explained from the perspective of auditory perception mechanisms. For separating two arbitrary sound sources from monaural recordings, three different networks with different parameters are trained and achieve excellent performances. The networks’ output can obtain an average scale-invariant signal-to-distortion ratio improvement (SI-SDRi) higher

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Cassina, Luca, Luca Fredianelli, Irene Menichini, Claudia Chiari, and Gaetano Licitra. "Audio-Visual Preferences and Tranquillity Ratings in Urban Areas." Environments 5, no. 1 (2017): 1. http://dx.doi.org/10.3390/environments5010001.

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During a survey related to acoustic and visual perception of users of urban areas, 614 people have been interviewed in Pisa (Italy). The work aims to identify and quantify the effects of parameters influencing the perception of tranquillity in order to understand the soundscape and to propose a method based on the perception of tranquillity for the detection of quiet areas within urban ones. A linear model that predicts the tranquillity perceived in different environments, based on their visual and acoustic characteristics, is proposed. Users were interviewed by operators inside the areas, usi

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Raczyński, Michał. "Elimination of the Phase Mismatch Error in PP Probe Using Synchronous Measurement Technique." Pomiary Automatyka Robotyka 26, no. 2 (2022): 35–46. http://dx.doi.org/10.14313/par_244/35.

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The paper presents a modification of the pressure-pressure (PP) sound intensity measurement method. In the proposed solution simultaneous measurement with a pair of microphones (used in the classical PP probe) is replaced by a sequence of measurements taken with a single microphone placed in successive positions. This approach requires an additional (reference) microphone to synchronize the successive measurements. Although, in the process of calculating the sound intensity only the signal from the measurement microphone is used. Thanks of this the errors associated with differences in the fre

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Beck, Christian, Kevin Pounot, Ilaria Mosca, et al. "Notes on Fitting and Analysis Frameworks for QENS Spectra of (Soft) Colloid Suspensions." EPJ Web of Conferences 272 (2022): 01004. http://dx.doi.org/10.1051/epjconf/202227201004.

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With continuously improving signal-to-noise ratios, a statistically sound analysis of quasi-elastic neutron scattering (QENS) spectra requires to fit increasingly complex models which poses several challenges. Simultaneous fits of the spectra for all recorded values of the momentum transfer become a standard approach. Spectrometers at spallation sources can have a complicated non-Gaussian resolution function which has to be described most accurately. At the same time, to speed up the fitting, an analytical convolution with this resolution function is of interest. Here, we discuss basic concept

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Ziemann, A., K. Arnold, and A. Raabe. "Acoustic tomography in the atmospheric surface layer." Annales Geophysicae 17, no. 1 (1999): 139–48. http://dx.doi.org/10.1007/s00585-999-0139-9.

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Abstract. Acoustic tomography is presented as a technique for remote monitoring of meteorological quantities. This method and a special algorithm of analysis can directly produce area-averaged values of meteorological parameters. As a result consistent data will be obtained for validation of numerical atmospheric micro-scale models. Such a measuring system can complement conventional point measurements over different surfaces. The procedure of acoustic tomography uses the horizontal propagation of sound waves in the atmospheric surface layer. Therefore, to provide a general overview of sound p

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Casalaspi, David. "Sound and Fury Signifying Something: The Political Consequences of the Opt-Out Movement." Teachers College Record: The Voice of Scholarship in Education 123, no. 5 (2021): 1–26. http://dx.doi.org/10.1177/016146812112300508.

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Background and Context Grassroots activism is on the rise in American education, leading some scholars to announce the arrival of a “New Politics of Education” in which political elites and grassroots actors clash over foundational questions of policy and power. However, little research has examined just how consequential grassroots education activism might actually be in this new era. This study takes up this area of inquiry by examining the political consequences of the opt-out movement, arguably the largest and most high-profile grassroots education movement in recent history. Purpose The p

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Kudriashov, Volodymyr. "Improvement of Range Estimation with Microphone Array." Cybernetics and Information Technologies 17, no. 1 (2017): 113–25. http://dx.doi.org/10.1515/cait-2017-0009.

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Abstract This paper presentsanew approach for the three-dimensional (3-D) localization of sound sources. An acoustic camera uses an angular beamforming to measure the Direction of Arrival (Do A) of an incoming signal, to localize the emission source. The acoustic sensor used in this article is the Brüel & Kjaer acoustic camera transformed to operate inabistatic mode. The transformation consists inaplacing of one of the microphones of the acoustic camera outside of its microphone array. This allows simultaneous estimation of the Do Aand the Time Difference of Arrival (TDo A) of the incoming

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Vidaña-Vila, Ester, Joan Navarro, Dan Stowell, and Rosa Ma Alsina-Pagès. "Multilabel Acoustic Event Classification Using Real-World Urban Data and Physical Redundancy of Sensors." Sensors 21, no. 22 (2021): 7470. http://dx.doi.org/10.3390/s21227470.

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Many people living in urban environments nowadays are overexposed to noise, which results in adverse effects on their health. Thus, urban sound monitoring has emerged as a powerful tool that might enable public administrations to automatically identify and quantify noise pollution. Therefore, identifying multiple and simultaneous acoustic sources in these environments in a reliable and cost-effective way has emerged as a hot research topic. The purpose of this paper is to propose a two-stage classifier able to identify, in real time, a set of up to 21 urban acoustic events that may occur simul

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Rapoport, Yuriy G., Oleg K. Cheremnykh, Volodymyr V. Koshovy, et al. "Ground-based acoustic parametric generator impact on the atmosphere and ionosphere in an active experiment." Annales Geophysicae 35, no. 1 (2017): 53–70. http://dx.doi.org/10.5194/angeo-35-53-2017.

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Abstract. We develop theoretical basics of active experiments with two beams of acoustic waves, radiated by a ground-based sound generator. These beams are transformed into atmospheric acoustic gravity waves (AGWs), which have parameters that enable them to penetrate to the altitudes of the ionospheric E and F regions where they influence the electron concentration of the ionosphere. Acoustic waves are generated by the ground-based parametric sound generator (PSG) at the two close frequencies. The main idea of the experiment is to design the output parameters of the PSG to build a cascade sche

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Bojak, I., Thom F. Oostendorp, Andrew T. Reid, and Rolf Kötter. "Towards a model-based integration of co-registered electroencephalography/functional magnetic resonance imaging data with realistic neural population meshes." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 369, no. 1952 (2011): 3785–801. http://dx.doi.org/10.1098/rsta.2011.0080.

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Brain activity can be measured with several non-invasive neuroimaging modalities, but each modality has inherent limitations with respect to resolution, contrast and interpretability. It is hoped that multimodal integration will address these limitations by using the complementary features of already available data. However, purely statistical integration can prove problematic owing to the disparate signal sources. As an alternative, we propose here an advanced neural population model implemented on an anatomically sound cortical mesh with freely adjustable connectivity, which features proper

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Wentworth, G. R., J. G. Murphy, B. Croft, et al. "Ammonia in the summertime Arctic marine boundary layer: sources, sinks and implications." Atmospheric Chemistry and Physics Discussions 15, no. 21 (2015): 29973–30016. http://dx.doi.org/10.5194/acpd-15-29973-2015.

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Abstract. Continuous hourly measurements of gas-phase ammonia (NH3(g)) were taken from 13 July to 7 August 2014 on a research cruise throughout Baffin Bay and the eastern Canadian Arctic Archipelago. Concentrations ranged from 30–650 ng m−3 (40–870 pptv) with the highest values recorded in Lancaster Sound (74°13' N, 84°00' W). Simultaneous measurements of total ammonium ([NHx]), pH and temperature in the ocean and in melt ponds were used to compute the compensation point (χ), which is the ambient NH3(g) concentration at which surface–air fluxes change direction. Ambient NH3(g) was usually seve

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Wentworth, Gregory R., Jennifer G. Murphy, Betty Croft, et al. "Ammonia in the summertime Arctic marine boundary layer: sources, sinks, and implications." Atmospheric Chemistry and Physics 16, no. 4 (2016): 1937–53. http://dx.doi.org/10.5194/acp-16-1937-2016.

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Abstract. Continuous hourly measurements of gas-phase ammonia (NH3(g)) were taken from 13 July to 7 August 2014 on a research cruise throughout Baffin Bay and the eastern Canadian Arctic Archipelago. Concentrations ranged from 30 to 650 ng m−3 (40–870 pptv) with the highest values recorded in Lancaster Sound (74°13′ N, 84°00′ W). Simultaneous measurements of total ammonium ([NHx]), pH and temperature in the ocean and in melt ponds were used to compute the compensation point (χ), which is the ambient NH3(g) concentration at which surface–air fluxes change direction. Ambient NH3(g) was usually s

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Zharkikh, T. V. "Musical Stained-glasses by Olivier Messian." Aspects of Historical Musicology 14, no. 14 (2018): 23–35. http://dx.doi.org/10.34064/khnum2-14.02.

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Background. As it is well-known from the statements by O. Messiaen himself in conversations with K. Samuel [10; 7], the French composer had the phenomenon of “colored hearing” associated with the effect of synesthesia. A prerequisite in modern performing art, as in the work of a musicologistresearcher, is the introduction to the worldview of an author-composer. The study of Messiaen’s synesthetic associations helps the interpreter to expand his timbre range in connecting with emotional “immersion” in the essence of the work, and the researcher of his music – to interpret correctly (often – to

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Nagy, Lajos. "Some possibilities for risk analysis in the decision support of crop production." Applied Studies in Agribusiness and Commerce 3, no. 1-2 (2009): 79–85. http://dx.doi.org/10.19041/apstract/2009/1-2/10.

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This article has been made according to my dissertation in which I present some opportunity of risk analysis and risk management in the decision support of crop production. Plant production is one of the most hazardous agricultural enterprises. Among risk sources seasonal fluctuation of average yields plays an important role in the assessment of enterprises. Therefore, I analyzed the production risk of the produced crops in Hungary compared to the European Union’s, after that I took into consideration the production site’s circumstances as well. Decision-makers must possess such means, by whic

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Anikeenko, L. "Current state of the problem of sports injury in football." Scientific Journal of National Pedagogical Dragomanov University Series 15 Scientific and pedagogical problems of physical culture (physical culture and sports), no. 8(128) (December 28, 2020): 14–16. http://dx.doi.org/10.31392/npu-nc.series15.2020.8(128).02.

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The article analyzes the current state of the problem of sports injuries in football. The most vulnerable areas of injuries in football have been identified. Possible causes of football injuries and the most common situations that lead to injuries in football players have been identified: defensive play, running, abrupt stop to open or get the ball, kick on the ball, abrupt stop to strike, one-step stop to change direction, foot kick on artificial turf, jump through a lying player, blocking, landing after a header, running after the ball, losing balance, driving the ball, blocking the defender

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Bertrand, Erin M., John P. McCrow, Ahmed Moustafa, et al. "Phytoplankton–bacterial interactions mediate micronutrient colimitation at the coastal Antarctic sea ice edge." Proceedings of the National Academy of Sciences 112, no. 32 (2015): 9938–43. http://dx.doi.org/10.1073/pnas.1501615112.

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Southern Ocean primary productivity plays a key role in global ocean biogeochemistry and climate. At the Southern Ocean sea ice edge in coastal McMurdo Sound, we observed simultaneous cobalamin and iron limitation of surface water phytoplankton communities in late Austral summer. Cobalamin is produced only by bacteria and archaea, suggesting phytoplankton–bacterial interactions must play a role in this limitation. To characterize these interactions and investigate the molecular basis of multiple nutrient limitation, we examined transitions in global gene expression over short time scales, indu

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Fay, Richard R. "Sound source segregation by goldfish: Two simultaneous tones." Journal of the Acoustical Society of America 123, no. 5 (2008): 3621. http://dx.doi.org/10.1121/1.2934840.

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Fay, Richard R. "Sound source segregation by goldfish: Two simultaneous tones." Journal of the Acoustical Society of America 125, no. 6 (2009): 4053–59. http://dx.doi.org/10.1121/1.3124777.

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KONISHI, Takuya, Yasuhisa SEKIGUCHI, and Noritoshi NAKAGAWA. "Identification of sound source parameters by optimization technique : Simultaneous identification of sound source power spectra." Proceedings of Conference of Chugoku-Shikoku Branch 2004.42 (2004): 213–14. http://dx.doi.org/10.1299/jsmecs.2004.42.213.

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Martens, William L., and Densil A. Cabrera. "Perceived elevation of simultaneously presented sound sources depends upon the correlation between the source signals." Journal of the Acoustical Society of America 131, no. 4 (2012): 3216. http://dx.doi.org/10.1121/1.4707991.

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ZHU, NA, and SEAN F. WU. "SOUND SOURCE LOCALIZATION IN THREE-DIMENSIONAL SPACE IN REAL TIME WITH REDUNDANCY CHECKS." Journal of Computational Acoustics 20, no. 01 (2012): 1250007. http://dx.doi.org/10.1142/s0218396x12500075.

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Triangulation is commonly used for source localization and most triangulation applications are based on intersection of the bearing direction to locate a source on a two-dimensional plane. In this paper, two new mathematical models (a basic model and an improved one) that expands the traditional triangulation concept to three-dimensional space are developed to locate multiple incoherent sound sources. The basic model uses four microphones and concentrates on solving a set of three quadratic equations simultaneously. The improved model requires more than four microphones and uses the solution f

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Burke, Elisa, and Johannes Hensel. "Sound Source System for Investigating the Auditory Perception of Infrasound Accompanied by Audio Sound." Acta Acustica united with Acustica 105, no. 5 (2019): 869–74. http://dx.doi.org/10.3813/aaa.919366.

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To gather more basic knowledge about both infrasound-perception mechanisms and the annoyance caused by infrasound, it is important to investigate the influence of the interaction between infrasound and sound at frequencies inside the common audio frequency range (audio sound) on the auditory perception. This paper gives a detailed description of a newly developed sound source system allowing simultaneous monaural stimulation of listeners with infrasound and audio-sound stimuli in psychoacoustic experiments. The sound source system covers a frequency range between 4 Hz and 6000 Hz. It can gener

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Otsuka, Takuma, Katsuhiko Ishiguro, Hiroshi Sawada, and Hiroshi Okuno. "Bayesian Unification of Sound Source Localization and Separation with Permutation Resolution." Proceedings of the AAAI Conference on Artificial Intelligence 26, no. 1 (2021): 2038–45. http://dx.doi.org/10.1609/aaai.v26i1.8376.

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Sound source localization and separation with permutation resolution are essential for achieving a computational auditory scene analysis system that can extract useful information from a mixture of various sounds. Because existing methods cope separately with these problems despite their mutual dependence, the overall result with these approaches can be degraded by any failure in one of these components. This paper presents a unified Bayesian framework to solve these problems simultaneously where localization and separation are regarded as a clustering problem. Experimental results confirm tha

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Deleforge, Antoine, Florence Forbes, and Radu Horaud. "Acoustic Space Learning for Sound-Source Separation and Localization on Binaural Manifolds." International Journal of Neural Systems 25, no. 01 (2015): 1440003. http://dx.doi.org/10.1142/s0129065714400036.

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In this paper, we address the problems of modeling the acoustic space generated by a full-spectrum sound source and using the learned model for the localization and separation of multiple sources that simultaneously emit sparse-spectrum sounds. We lay theoretical and methodological grounds in order to introduce the binaural manifold paradigm. We perform an in-depth study of the latent low-dimensional structure of the high-dimensional interaural spectral data, based on a corpus recorded with a human-like audiomotor robot head. A nonlinear dimensionality reduction technique is used to show that

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Jambrošić, Kristian, Marko Horvat, Dominik Kisić, and Tin Oberman. "SPEAKER DISCRIMINATION IN MULTISOURCE ENVIRONMENTS AURALIZED IN REAL ROOMS." Akustika, VOLUME 37 (December 15, 2020): 19–37. http://dx.doi.org/10.36336/akustika20203719.

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With the recent development of audio in modern VR/AR systems and the increasing capability of synthesizing natural sound fields over headphones with head tracking, the question of the ability of our hearing system to discriminate multiple concurrent sound sources has become important again. We must understand how psychoacoustical and psychophysical limitations of the hearing system cope with novel technologies of virtual acoustics that can simulate an almost unlimited number of sound sources. Previous research has shown that the capacity of human hearing to discriminate a reference sound sourc

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de Koning, Megan, Julia R. Beatini, Glenn A. Proudfoot, and Megan D. Gall. "Hearing in 3D: Directional Auditory Sensitivity of Northern Saw-Whet Owls (Aegolius acadicus)." Integrative and Comparative Biology 60, no. 5 (2020): 1058–67. http://dx.doi.org/10.1093/icb/icaa024.

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Abstract Northern saw-whet owls (Aegolius acadicus) are nocturnal predators that are able to acoustically localize prey with great accuracy; an ability that is attributed to their unique asymmetrical ear structure. While a great deal of research has focused on open loop sound localization prior to flight in owls (primarily barn owls), directional sensitivity of the ears may also be important in locating moving prey on the wing. Furthermore, directionally sensitive ears may also reduce the effects of masking noise, either from the owls’ wings during flight or environmental noise (e.g., wind and

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Pu, Henglin, Chao Cai, Menglan Hu, Tianping Deng, Rong Zheng, and Jun Luo. "Towards Robust Multiple Blind Source Localization Using Source Separation and Beamforming." Sensors 21, no. 2 (2021): 532. http://dx.doi.org/10.3390/s21020532.

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Multiple blind sound source localization is the key technology for a myriad of applications such as robotic navigation and indoor localization. However, existing solutions can only locate a few sound sources simultaneously due to the limitation imposed by the number of microphones in an array. To this end, this paper proposes a novel multiple blind sound source localization algorithms using Source seParation and BeamForming (SPBF). Our algorithm overcomes the limitations of existing solutions and can locate more blind sources than the number of microphones in an array. Specifically, we propose

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Woods, Kevin J. P., and Josh H. McDermott. "Schema learning for the cocktail party problem." Proceedings of the National Academy of Sciences 115, no. 14 (2018): E3313—E3322. http://dx.doi.org/10.1073/pnas.1801614115.

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The cocktail party problem requires listeners to infer individual sound sources from mixtures of sound. The problem can be solved only by leveraging regularities in natural sound sources, but little is known about how such regularities are internalized. We explored whether listeners learn source “schemas”—the abstract structure shared by different occurrences of the same type of sound source—and use them to infer sources from mixtures. We measured the ability of listeners to segregate mixtures of time-varying sources. In each experiment a subset of trials contained schema-based sources generat

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Panosso, Andriele da Silva, та Stephan Paul. "Subjective evaluation of ﬂoor impact noise using the tapping machine and a non-standardized source". Acta Scientiarum. Technology 44 (11 березня 2022): e59025. http://dx.doi.org/10.4025/actascitechnol.v44i1.59025.

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Assessing the acoustical performance of building floor systems relies on the impact source to be utilized and on the type of floor cover used. Besides that, a reliable assessment should consider the listeners’ judgments of the sounds transmitted through floors or radiated by them. Objective ratings measured can help to foresee tenant satisfaction provided that they are well correlated with the listeners’ judgments. The main objective of this study was to compare objective and subjective evaluations, using two types of impact sources and two types of floor covers, to try and determine which obj

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Lu, Yazhong, Sean Wu, Zeyu Yuan, and Wen He. "A new technology for locating very low frequency and negative signal-to-noise ratio sound sources." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 263, no. 4 (2021): 2468–75. http://dx.doi.org/10.3397/in-2021-2144.

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This paper presents a new technology that enables one to locate multiple sound sources with very a large dynamic range simultaneously, including very low frequency and negative signal-to-noise ration sound sources in a non-ideal environment, where there are random background noise and unknown interfering signals. In particular, spatial resolution of source localization is frequency independent. In other words, spatial resolution remains very high at very low as well as at very high frequencies. The underlying principle of this new technology is a hybrid methodology that includes a passive SODA

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Nassur, Ali-Mohamed, Damien Léger, Marie Lefèvre, et al. "Effects of Aircraft Noise Exposure on Heart Rate during Sleep in the Population Living Near Airports." International Journal of Environmental Research and Public Health 16, no. 2 (2019): 269. http://dx.doi.org/10.3390/ijerph16020269.

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Background Noise in the vicinity of airports is a public health problem. Many laboratory studies have shown that heart rate is altered during sleep after exposure to road or railway noise. Fewer studies have looked at the effects of exposure to aircraft noise on heart rate during sleep in populations living near airports. Objective The aim of this study was to investigate the relationship between the sound pressure level (SPL) of aircraft noise and heart rate during sleep in populations living near airports in France. Methods In total, 92 people living near the Paris-Charles de Gaulle and Toul

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Su, Hsi-Yao. "Reconstructing Taiwanese and Taiwan Guoyu on the Taiwan-based Internet." Media Discourse in Greater China 19, no. 2 (2009): 313–35. http://dx.doi.org/10.1075/japc.19.2.08su.

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This study investigates a type of online language play popularized on the Taiwan-based Internet, including the rendering in Chinese characters of the sounds of Taiwanese and Taiwan Guoyu (Taiwanese-accented Mandarin), which are defined as Stylized Taiwanese and Stylized Taiwanese-accented Mandarin, respectively. The playfulness inherent in these stylized practices has multiple sources. First, they manipulate the Chinese writing system and create an incongruity between sound and meaning. Second, they call attention simultaneously to a number of functions of language (Jakobson, 1960). Third, the

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Gontier, Félix, Catherine Lavandier, Pierre Aumond, Mathieu Lagrange, and Jean-François Petiot. "Estimation of the Perceived Time of Presence of Sources in Urban Acoustic Environments Using Deep Learning Techniques." Acta Acustica united with Acustica 105, no. 6 (2019): 1053–66. http://dx.doi.org/10.3813/aaa.919384.

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The impact of urban sound on human beings has often been studied from a negative point of view (noise pollution). In the two last decades, the interest of studying its positive impact has been revealed with the soundscape approach (resourcing spaces). The literature shows that the recognition of sources plays a great role in the way humans are affected by sound environments. There is thus a need for characterizing urban acoustic environments not only with sound pressure measurements but also with source-specific attributes such as their perceived time of presence, dominance or volume. This pap

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Truong, Quang Tan, Huy Quang Tran, and Phuong Huu Nguyen. "BLIND SOURCE SEPARATION (BSS) APPLIED TO SOUND IN VARIOUS CONDITIONS." Science and Technology Development Journal 14, no. 4 (2011): 34–42. http://dx.doi.org/10.32508/stdj.v14i4.2034.

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Our ears often simultaneously receive various sound sources (speech, music, noise . . .), but we can still listen to the intended sound. A system of speech recognition must be able to achieve the same intelligent level. The problem is that we receive many mixed (combined) signals from many different source signals, and would like to recover them separately. This is the problem of Blind Source Separation (BSS). In the last decade or so a method has been developed to solve the above problem effectively, that is the Independent Component Analysis (ICA). There are many ICA algorithms for different

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Zhang, Lanyue, Jia Wang, Desen Yang, Bo Hu, and Di Wu. "Optimization of the Equivalent Source Configuration for the Equivalent Source Method." Journal of Marine Science and Engineering 9, no. 8 (2021): 807. http://dx.doi.org/10.3390/jmse9080807.

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The equivalent source method is widely applied to study structural acoustic radiation in an underwater environment. However, there is still uncertainty in arranging the equivalent source, and the current mainstream configuration method needs a large number of equivalent sources, limiting its practical applicability. In this paper, an equivalent source configuration method that is simple, effective, and easy to implement, and which based on a tradeoff between the ill condition of the transfer matrix and the adequacy of the simulated structure’s radiated sound field, is proposed. The optimizatio

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Killan, Catherine, Andrew Scally, Edward Killan, Catherine Totten, and Christopher Raine. "Factors Affecting Sound-Source Localization in Children With Simultaneous or Sequential Bilateral Cochlear Implants." Ear and Hearing 40, no. 4 (2019): 870–77. http://dx.doi.org/10.1097/aud.0000000000000666.

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