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Valentina Vignali, Tobi Hoff, Jacqueline J. de Vries-Idema, Anke L. W. Huckriede, Jan Maarten van Dijl and Patrick van Rijn
Disinfection of microphones by using UV-C to be applied in the entertainment industry to prevent infections as a consequence of microphone sharing between individuals.
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László Sujbert and Attila Szarvas
Office employees are exposed to acoustic noise, especially in an open office environment. Passive or active headsets sufficiently reduce the level of noise, but their long-time wear is uncomfortable. The paper presents an active headrest system built int...
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Esztella Balla, János Vad
Pág. 122 - 129
The paper presents wind tunnel experiments, supplemented with phased array microphone measurements, on 2D basic models of low-speed axial fan blade sections: a flat plate, a cambered plate, and a RAF6-E airfoil. It aims at documenting the establishment o...
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Tamás Benedek, Péter Tóth
Pág. 37 - 46
This paper summarizes a case study example on the methodology used for phased array microphone measurements in a realistic acoustic environment. A ducted fan rotor is measured in an environment, where structure born noise and aerodynamically generated no...
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Olga Lucia Ramos Sandoval, Erika Nathalia Gamma Melo, Dario Amaya Hurtado
Pág. 287 - 298
Abstract AuthorsDownloadsReferencesHow to Cite
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Alexander Trunov,Zhan Byelozyorov
Pág. 38 - 50
Special features in the process of determining the coordinates of sound anomalies according to the sound series were considered. Sound anomalies have been shown to be a source of information about events, phenomena that are already occurring, or are thei...
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Bence Tóth, János Vad, Gábor Kotán
Pág. 261 - 268
The aim of this paper is to present two acoustic beamforming methods developed for rotating sources, namely the Rotating Source Identifier (ROSI) and the Virtual Rotating Array method (VRAM). These were applied onto a series of simulated test cases, and ...
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Alessandro Corsini, Sara Feudo, Cecilia Tortora, Graziano Ullucci
Pág. 153 - 163
This work investigates the use of unconventional sensors to measure pressure modulation interpreted as pseudo sound in the near field on the casing of a fan in a view to detect rotating stall. Rotating stall is an aerodynamic issue with a frequency signa...
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James Marcus Griffin, Steven Jones, Bama Perumal and Carl Perrin
Welding inspection is a critical process that can be severely time-consuming, resulting in productivity delays, especially when destructive or invasive processes are required. This paper defines the novel approach to investigate the physical correlation ...
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Sakshi Pandey and Amit Banerjee
Counting the number of speakers in an audio sample can lead to innovative applications, such as a real-time ranking system. Researchers have studied advanced machine learning approaches for solving the speaker count problem. However, these solutions are ...
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Hanbing Ma, Oliver Kirschner and Stefan Riedelbauch
The head and flow rate of a pump characterize the pump performance, which help determine whether maintenance is needed. In the proposed method, instead of a traditional flowmeter and manometer, the operating points are identified using data collected fro...
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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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Xin Ma, Yu Luo, Jian Shi and Hailiang Xiong
Fault detection of Substation Power Transformer by Non-contact measurement is important for the safety of machines, instruments, and human beings. To make non-contact measurement as convenient as possible, it is desirable that efficient algorithms based ...
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Artur Nowoswiat
Changes in acoustic parameters measured in a room may depend on the location and orientation of the sound source and microphones or on the reverberation conditions of the room. As was found in the research presented in this publication, reverberation in ...
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Ricardo San Martín, Pablo Tello, Ana Valencia and Asier Marzo
Parametric loudspeakers can generate a highly directional beam of sound, having applications in targeted audio delivery. Audible sound modulated into an ultrasonic carrier will get self-demodulated along the highly directive beam due to the non-linearity...
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Simon Jekosch and Ennes Sarradj
The characterization of rotating aeroacoustic sources using microphone array methods has been proven to be a useful tool. One technique to identify rotating sources is the virtual rotating array method. The method interpolates the pressure time data sign...
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Juan M. Martín-Doñas, Antonio M. Peinado, Iván López-Espejo and Angel Gomez
This paper deals with speech enhancement in dual-microphone smartphones using beamforming along with postfiltering techniques. The performance of these algorithms relies on a good estimation of the acoustic channel and speech and noise statistics. In thi...
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Brendan Harvey and Siu O?Young
The following paper presents results obtained from experiments conducted to investigate the viability of acoustic sensing to form the basis of a non-cooperative aircraft collision avoidance system. An unmanned aerial vehicle (UAV) fitted with two microph...
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Brendan Harvey and Siu O?Young
The following paper presents results obtained from experiments conducted to investigate the viability of acoustic sensing to form the basis of a non-cooperative aircraft collision avoidance system. An unmanned aerial vehicle (UAV) fitted with two microph...
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Andre Sitompul, Masafumi Nishimura
Pág. 74 - 86
For people with hearing disabilities, not only would give them difficulties in going through their everyday lives but also sometimes could be life threatening. In this research we proposed a simple, yet robust approach for helping the hearing-impaired pe...
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