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Angélica Emygdio da Silva Antonetti, Larissa Thais Donalonso Siqueira, Maria Paula de Almeida Gobbo, Alcione Ghedini Brasolotto and Kelly Cristina Alves Silverio
Cepstral peak prominence-smoothed (CPPs) and long-term average spectrum (LTAS) are robust measures that represent the glottal source and source-filter interactions, respectively. Until now, little has been known about how physiological events impact audi...
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Keiichi Tsuneyama, Yasushi Kiyoki
Pág. 1 - 15
This paper presents a system that analyzes the time-series impression change in the acoustic signal by a unit of music phrase. The aim is to support the music creation using a computer (computer music) by bringing out composers' potentially existing know...
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Wanyuan Zhang, Weijia Yuan, Gongwu Sun, Tengjiao He, Junqi Qu and Chao Xu
The advancement of unmanned platforms is driving the miniaturization and cost reduction of the multi-beam echosounder (MBES). In the process of MBES array calibration, the mutual coupling significantly impacts the performance of parameter estimation. We ...
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Ruixiang Kan, Mei Wang, Xin Liu, Xiaojuan Liu and Hongbing Qiu
For indoor sensor systems, it is essential to implement an extra supporting area notification part. To inform the real-time coordinates, the time difference of arrival (TDOA) algorithm can be introduced. For these indoor localization systems, their main ...
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Yijing Chu, Ming Wu, Hongling Sun, Jun Yang and Mingyang Chen
Active noise control (ANC) systems usually involve a large number of loudspeakers and error microphones in order to achieve noise reduction over an extended region of space. Although fundamentals of ANC theory and principles of ANC methods have been well...
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Morteza Farhadi, Yousef Abbaspour-Gilandeh, Asghar Mahmoudi and Joe Mari Maja
The existence of conversion industries to sort and grade hazelnuts with modern technology plays a vital role in export. Since most of the hazelnuts produced in Iran are exported to domestic and foreign markets without sorting and grading, it is necessary...
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Qiang Tu, Fei Yuan, Weidi Yang and En Cheng
Diver breathing sounds can be used as a characteristic for the passive detection of divers. This work introduces an approach for detecting the presence of a diver based on diver breathing sounds signals. An underwater channel model for passive diver dete...
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Sergey Zhidkov, Andrey Sychev, Alexander Zhidkov and Alexander Petrov
In this paper, we provide a systematic analysis of smartphone power consumption in background audio recording scenarios. We report comprehensive measurement results for several Android smartphone models with diverse hardware specifications, running diffe...
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Fabián Esqueda, Henri Pöntynen, Julian D. Parker and Stefan Bilbao
Wavefolders are a particular class of nonlinear waveshaping circuits, and a staple of the ?West Coast? tradition of analog sound synthesis. In this paper, we present analyses of two popular wavefolding circuits?the Lockhart and Serge wavefolders?and show...
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V. V. Laguta,V. Y. Khizyakov
Pág. 204 - 207
The paper deals with methods of preliminary analysis of sound signals to extract stable features in classifying the relay used in railway automation systems. The algorithm of the description of a sound signal on the basis of these attributes is offered.
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Artem T. Turov, Yuri A. Konstantinov, Fedor L. Barkov, Dmitry A. Korobko, Igor O. Zolotovskii, Cesar A. Lopez-Mercado and Andrei A. Fotiadi
Moving differential and dynamic window moving averaging are simple and well-known signal processing algorithms. However, the most common methods of obtaining sufficient signal-to-noise ratios in distributed acoustic sensing use expensive and precise equi...
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Fan Yin, Chao Li, Haibin Wang, Shihong Zhou, Leixin Nie, Yonglin Zhang and Hao Yin
Digital beamforming techniques find wide applications in the field of underwater acoustic array signal processing. However, their azimuthal resolution has long been constrained by the Rayleigh limit, consequently limiting their detection performance. In ...
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Nicholas J. Joslyn, Alexander S. Douglass and David R. Dowling
The frequency-difference and frequency-sum autoproducts, quadratic products of complex acoustic field amplitudes at two frequencies, may mimic genuine acoustic fields at the difference and sum frequencies of the constituent fields, respectively. Autoprod...
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Yu. I. Osenin,V. P. Voitenko
Pág. 60 - 62
The paper suggests a railway track diagnostic device adaptable to the conditions of uncontrolled acoustic interferences of man-caused origin propagating in the rail material by means of using the spectral analysis based upon the Fourier transformation, d...
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Lin Liu, Xiumei Zhang and Xiuming Wang
The inversion of gas hydrate saturation is a critical procedure in the evaluation of hydrate reservoirs. In this paper, a theoretical model for a borehole acoustic wavefield excited by multipole sources is established for the first time. On this basis, t...
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Artem T. Turov, Fedor L. Barkov, Yuri A. Konstantinov, Dmitry A. Korobko, Cesar A. Lopez-Mercado and Andrei A. Fotiadi
This work studies the application of low-cost noise reduction algorithms for the data processing of distributed acoustic sensors (DAS). It presents an improvement of the previously described methodology using the activation function of neurons, which enh...
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Sergey Budrin, Grigory Dolgikh, Vladimir Chupin and Stanislav Dolgikh
In this paper, we analyzed the results of experimental data processing in the study of regularities of propagation and transformation of low-frequency harmonic signals at the boundary of the ?sea-land-sea? system. Harmonic signals at a carrier frequency ...
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Jing Li, Jin Fu and Nan Zou
The underwater channel is bilateral, heterogeneous, uncertain, and exhibits multipath transmission, sound line curvature, etc. These properties complicate the structure of the received pulse, causing great challenges in direct signal identification for r...
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Philipp Gabler, Bernhard C. Geiger, Barbara Schuppler and Roman Kern
Superficially, read and spontaneous speech?the two main kinds of training data for automatic speech recognition?appear as complementary, but are equal: pairs of texts and acoustic signals. Yet, spontaneous speech is typically harder for recognition. This...
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Abdullah Alnutayfat, Sophia Hassiotis, Dong Liu and Alexander Sutin
This paper presents a new method of signal processing for vibro-acoustic modulation (VAM) methods in order to detect damage accumulation in steel samples. Damage in the tested samples was produced by cycle loading, which, with a small amplitude, was used...
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