Acoustic Echo Cancellation Embedded in Smart Transcoding Algorithm between 3GPP AMR-NB Modes by Emmanuel Rossignol Thepie Fapi, Dominique Pastor, Christophe Beaugeant, Hervé Taddei

“…Acoustic Echo Cancellation (AEC) is a necessary feature for mobile devices when the acoustic coupling between the microphone and the loudspeaker affects the communication quality and intelligibility. …”
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Application of EMD Technology in Leakage Acoustic Characteristic Extraction of Gas-Liquid, Two-Phase Flow Pipelines by Jian Ji, Yuxing Li, Cuiwei Liu, Dongxu Wang, Huafei Jing

“…Compared to other methods, acoustic detection technology has many advantages and high adaptability. …”
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Mapping subcortical brain lesions, behavioral and acoustic analysis for early assessment of subacute stroke patients with dysarthria by Juan Liu, Juan Liu, Rukiye Ruzi, Chuyao Jian, Qiuyu Wang, Shuzhi Zhao, Manwa L. Ng, Shaofeng Zhao, Lan Wang, Nan Yan

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Fault Diagnosis of Axle Box Bearing with Acoustic Signal Based on Chirplet Transform and Support Vector Machine by Jimin Zhang, Xianting Hu, Xujie Zhong, Hechao Zhou

“…Acoustic fault diagnosis technology equipment is non-contact, and the acoustic signal is easy to access. …”
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Rock fracture mode and acoustic emission characteristics under true triaxial single-sided unloading path by Longpei Ma, Longpei Ma, Chongyan Liu, Guangming Zhao, Guangming Zhao

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A Planar Acoustic Field Reconstruction Method Based on Fast Wave Superposition Spectrum and Sparse Sampling by Yang Zhang, Yu-Jiang Wang, Yu Xiang, Zi-Yu Shi, Shao-Jie Fan, Jing Lu

“…First, the equivalent source intensities are expanded on a rectangular virtual surface using a bidirectional Fourier series, resulting in a semi-analytic and half-numerical acoustic pressure expression. The Fourier coefficients result in good sparsity for continuous acoustic pressures from structural vibration sources, and the proposed sparse sampling method can further reduce correlation in the measurement matrix. …”
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Acoustic-Mechanical Responses of Intact and Flaw-Contained Rock Deformation under Uniaxial Compression: A Comparison by Gui-Lin Wang, Liang Zhang, Zhen Wang, Jian-Zhi Zhang, Fan Sun, Pei-Yong Qiu

“…Moreover, photographic monitoring technique and emission monitoring technique are introduced to explore the fracturing mode and the acoustic emission (AE) evolution characteristic of fractured rock during the whole loading process. …”
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Effect of Size Distribution on the Dust Acoustic Solitary Waves in Dusty Plasma with Two Kinds of Nonthermal Ions by Samira Sharif Moghadam, Davoud Dorranian

“…Effect of dust size, mass, and charge distributions on the nonlinear dust acoustic solitary waves (DASWs) in a dusty plasma including negatively charged dust particles, electrons, and nonthermal ions has been studied analytically. …”
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The Effect of Steady Flow on the Physical Quantities of Slow mMagneto Acoustic Waves in Solar Coronal Plasma by Abbas Abedini

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Mechanical Damage Test and Model Study of Layered Composite Rock Based on Acoustic Emission and DIC Characteristics by Xianyin Qi, Zhen Yang, Shengwei Wang, Peng Fu

“…Uniaxial compression tests were conducted and supplemented with AE (Acoustic Emission) system and DIC (Digital Image Correlation) system to obtain the physical and mechanical parameters such as strength and elastic modulus of the layered composite rocks. …”
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The combined effectiveness of acoustic indices in measuring bird species richness in biodiverse sites in Cyprus, China, and Australia by Christos Mammides, Pan Wuyuan, Guohualing Huang, Rachakonda Sreekar, Christina Ieronymidou, Aiwu Jiang, Eben Goodale, Harris Papadopoulos

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Transient spray combustion characteristics in a gas–liquid pintle rocket engine under acoustic excitation by Xuan Jin, Chao Zhu, Dejiang Chen, Zhongpei Zhang

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An Investigation of the Acoustic Enclosure of an Air Conditioning Compressor Using Response Surface Analysis and Topological Rigidity Optimization by Hai-Feng Cao, Cang-Jie Yang, Ren-Lian Ma, Shi-Wei Ni, Zheng-Kai Song, Xi Wang, Yu-Xuan Chen, Chen-Xing Jiang

“…Then, experimental trials using the proposed acoustic enclosure are conducted in a semianechoic chamber. …”
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Improving detection of Parkinson’s disease with acoustic feature optimization using particle swarm optimization and machine learning by Elmoundher Hadjaidji, Mohamed Cherif Amara Korba, Khaled Khelil

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Observation System Optimization of Offshore Acoustic Exploration for Estimating Submarine Geological Structures via Directivity Analysis by Chao Fu, Lei Hao, Pengfei Zhou, Lei Chen, Xiaobin Xu, Kai Wang, Miaojun Sun

“…Then, the numerical simulations based on the finite difference method was applied, and imaging characteristics of observation system with different parameter were studied. For submarine acoustic exploration, the spark source with frequency over 200 Hz can obtain the clear reflections for geological interpretation; besides, the receiver array with the interval of 5 m–10 m helps to obtain better wave signals when the buried depth of a geological body is less than 300 m, and the width is more than 10 m. …”
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Comparison of the neuraxial acoustic window in hamstring stretch position and cross-legged position: An observational pilot study by Priyanka Sethi, Manbir Kaur, N. Balakrishnan, Govind Singh, Deepanshu Dang, Kamlesh Kumari, Pradeep Kumar Bhatia

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Determination of distance away and depth of transmitters relative to a vertical acoustic telemetry array in the open ocean by Eric V. C. Schneider, Brendan S. Talwar, David M. Bailey, Shaun S. Killen, Dale M. Webber, Courtney E. MacSween, Travis E. Van Leeuwen, Frank I. Smith

Subjects: “…Acoustic telemetry…”
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Assessing structural integrity of non-homogeneous systems by means of Acoustic Emissions and Non-Extensive Statistical Mechanics by Stavros K. Kourkoulis, Ermioni D. Pasiou, Ilias Stavrakas, Dimos Triantis

“…Taking advantage of the interevent time intervals, namely the time intervals between two successive acoustic events recorded during mechanical loading of structural elements, it is attempted to detect indices warning about upcoming failure. …”
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Experimental Study on Influence of Borehole Arrangement on Energy Conversion and Acoustic Characteristics of Coal-Like Material Sample by Chuanbo Hao, Zhiyuan Hou, Fukun Xiao, Gang Liu

“…Also, it can reduce the frequency band energy of the main frequency of acoustic emission signal but has little effect on the size and richness of the peak frequency of acoustic emission signal. …”
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Three-dimensional omnidirectional characterization methods of rock anisotropic wave velocity and acoustic emission location optimization by Shengjun MIAO, Wenxuan YU, Mingchun LIANG, Pengjin YANG, Conghao LI, Zejing LIU

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