Showing 421 - 440 results of 2,083 for search '"sound"', query time: 0.06s Refine Results
  1. 421

    IoT sensing technology based on acoustic phase by Yang LIU, Wuxiong ZHANG, Weidong FANG

    Published 2018-06-01
    “…The perception and interaction technology between IoT devices is one of the necessary foundations for the development of the Internet of things.With the growing popularity of multimedia devices,such as smart phones,tablet,and home audio,the speakers and microphones are ubiquitous on these devices which make it possible to the low cost interaction between devices using acoustic signal.The low speed and low frequency physical properties of sound waves make the acoustic-based sensing technology have higher accuracy and lower computation.A phase based measurement method using acoustic signals was proposed,which could be used to measure high precision distance between different mobile devices and sound sources.In a certain range,firstly,the mobile device receives the single frequency acoustic signal transmitted by a sound source.The mobile device uses the sound signal to synchronize the phase between the mobile devices the sound source,and then calculates the distance between the mobile device and the sound source by calculating the phase difference during movement.…”
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  2. 422
  3. 423

    Concert Viewing Headphones by Kazuya Atsuta, Masatoshi Hamanaka, SeungHee Lee

    Published 2011-01-01
    “…The sound processing creates imaginary microphones for those performers without one so that the user can hear the sound from any performer. …”
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  4. 424

    Acoustic Signatures of the Phases and Phase Transitions in the Blume Capel Model with Random Crystal Field by Gul Gulpinar

    Published 2018-01-01
    “…Sound propagation in the Blume Capel model with quenched diluted single-ion anisotropy is investigated. …”
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  5. 425

    Measured Analysis of Noise Reduction Effect for Urban Rapid Rail Transit Viaducts by LU Sheng’an, LIN Haifeng

    Published 2025-01-01
    “…[Objective] To reduce the impact of elevated lines in urban rapid rail transit on environmental noise, multiple noise-reduction measures such as near-track sound barriers and ballast bed sound-absorbing panels are adopted. …”
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  6. 426

    Horizontal Detection Range Estimation of Deep-Sea Acoustic Shadow Area Based on Vertical Phased Emission Array by Naibin Chen, Dayong Peng, Li Ma, Tao Hu, Haijun Liu, Haifeng Li

    Published 2024-12-01
    “…To scan the horizontal range of the deep-sea shadow zone with high accuracy and efficiency, enabling active target detection, a horizontal detection range estimation method based on phased sound focusing technology is presented. The model of the phased emission sound field is derived, along with the theoretical estimation formula for the horizontal detection range, by combining the half-power beamwidth of the beam curve at the phased-emitter end with the ray propagation law of deep-sea acoustics. …”
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  7. 427

    Binaural Active Audition for Humanoid Robots to Localise Speech over Entire Azimuth Range by Hyun-Don Kim, Kazunori Komatani, Tetsuya Ogata, Hiroshi G. Okuno

    Published 2009-01-01
    “…The CSP of sound signals obtained with only two microphones was used to localise the sound source without having to measure impulse response data. …”
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  8. 428

    The Design of a Noise Detection Automatisation Tool in Library – Based on Internet of Things by Dhiya Alfiyyah Ansar Dhiya, Yuyun, Imran Taufik

    Published 2022-12-01
    “…The Arduino processed the data from the sound sensor through the Edge Impulse platform. Suppose a sound with a value exceeds 0.6 and takes more than 10 seconds. …”
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  9. 429

    MANDATORY TECHNICAL ELEMENTS IN THE METAMORPHOSIS OF THE SINGING VOICE by Georgeta PINGHIRIAC

    Published 2011-06-01
    “…The attack and emission of the sound are essential while singing. Frequently occurring voice problems are veiled voice, throatiness, the loss of the lowest and highest tones, flat sound and excessive vibrato. …”
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  10. 430

    Cyclostationary Near-field Acoustic Holography for Gearboxes by Zhu Song, Zhang Erliang, Gao Xiaoyu

    Published 2024-12-01
    “…Regarding the problem that the traditional near-field acoustic holography (NAH) has difficulty in reconstructing the sound field of the gearbox, this work makes full use of the cyclostationary characteristics of the radiated noise and combines the cyclostationary signal analysis with the equivalent source NAH algorithm to develop a sound imaging method for the gearbox. …”
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  11. 431

    Effect of small boat engine noise on hearing loss of fishermen and efficiency of small boat engine silencer by S. Sinworn, N. Viriyawattana

    Published 2024-07-01
    “…Utilizing the solid work technique, the exhaust silencer was designed based on a model of the internal exhaust pressure. The sound level at the end of the exhaust silencer pipe was determined by employing a sound meter and recording it at a speed of 4,000 revolutions per minute. …”
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  12. 432
  13. 433

    ‘[E]very word he says to me enters my heart and has a new meaning for me’: The Soundscape in George Eliot’s Janet’s Repentance by Lilia Miroshnychenko

    Published 2021-10-01
    “…To pursue the theme of soundscape (to use Murray Schafer’s term) in George Eliot’s Janet’s Repentance, this paper will successively address more specific topics: the forms of sound representations, the sound as an articulation of the social, the affinity of sound and sympathetic resonance. …”
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  14. 434

    Numerical–analitical method for the problems of aerodynamic noise generations in helicopter and quadrotors by Petro Lukianov

    Published 2024-11-01
    “…The subject of this paper is to demonstrate the capabilities of numerical-analytical method for solving problems of sound generation by helicopter and quadrocopter rotors. …”
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  15. 435

    Simulation and Optimization of Acoustic Package of Dash Panel Based on SEA by Jintao Su, Ling Zheng, Jianping Lou

    Published 2020-01-01
    “…The instrument panel assembly is an important structure to shield powertrain noise and front wheel noise, and the instrument panel sound insulation system plays a key role in it. Therefore, the sound insulation characteristics of the instrument panel sound insulation components appear particularly important. …”
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  16. 436

    RESEARCH ON ACOUSTIC RADIATION CHARACTERISTIC OF SAW BLADE CUTTING SYSTEM BASED ON MULTI-FIELD COUPLING by TIAN YongJun, DUAN GuoLin, YAO Tao, GANG JianHua, ZHANG E

    Published 2017-01-01
    “…In order to study the distribution of sound field and quantitative estimates of the cutting noise,a multiphysics coupling model was constructed.Firstly,the vibration response of the fluid structure interaction system was extracted under multibody dynamic contact by using method of center difference.Moreover,a co-simulation method for the acoustic radiation model based on the boundary element method and acoustic coupling theory was presented.On this basis,a structure acoustic coupling model was established to calculate the sound pressure according to the results of the vibration response previously calculated.Then,the sound radiation in time domain characteristics and domain characteristics with the coupled system in half the space is studied.On the basis of the FSI theory,the computing results of the one-way coupling method and two-way coupling method are compared.Finally,the effects of radiating area influence on the sound power is discussed,makes clear the primarily radiation area.As compared with the experimentation results,the multi-field coupling model established in this paper about cutting noise of the saw blade is correct and feasible.…”
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  17. 437

    Effect of Massage Combined Speech Training on Phonological Disorder in Children with Dyskinetic Cerebral Palsy by Jinrong HUANG, Feng ZHANG, Fujian CHEN, Jiaoyan LIAO, Bo LI

    Published 2017-04-01
    “…The samples were arranged and the sound constructing, verbal fluency and articulation were analyzed.Results:After massage combined speech training, two children gained significant improvement in the indexes of sound constructing, verbal fluency, articulation, diadochokinetic rate and speaking rate.Conclusion:Massage combined speech training has a significant impact on the improvement of sound constructing, verbal fluency and articulation in children with dyskinetic cerebral palsy.…”
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  18. 438

    THICKNESS INFLUENCE ON ABSORBING PROPERTIES OF STRATIFIED COMPOSITE MATERIALS by IULIANA IAȘNICU (STAMATE), OVIDIU VASILE, RADU IATAN

    Published 2015-12-01
    “…Influence of thickness sound-absorbing material can be supported by the values obtained for the absorption coefficient, but it can be studied as a study case in the anechoic chamber, where the sound pressure level is measured with a sound level meter. …”
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  19. 439

    Simulation of Flow-Induced Vibration and Dynamic Performance of Circular-Arc Helical Gear Pump under Background of Machine Learning by Xiaoling Wei, Yongbao Feng, Xiaoxia Han, Zhenxin He

    Published 2022-01-01
    “…Then, the sound field calculation is carried out, and the result of the spatial and temporal variation of the sound field is finally obtained. …”
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  20. 440

    La Sonorité du vide by Eckehard Pistrick

    Published 2018-11-01
    “…This article re-evaluates the status of sound in accessing the individual and intimate life in the worlds of migrants. …”
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