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Kimihiro Sakagami, Fumiaki Satoh and Akira Omoto
In this paper, we revisit the acoustics education program using mobile devices to better understand urban environments. We begin with a summary of our past projects to demonstrate a model case of the concept. In these projects, the output was mainly supp...
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Giuseppe Masetti, Larry Alan Mayer and Larry Guy Ward
A robust and flexible technique to segment seafloor acoustic mapping data by analyzing co-located bathymetric digital elevation models and acoustic backscatter mosaics is presented. The algorithm first uses principles of topographic openness, pattern rec...
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Giuseppe Masetti, Larry Alan Mayer and Larry Guy Ward
A robust and flexible technique to segment seafloor acoustic mapping data by analyzing co-located bathymetric digital elevation models and acoustic backscatter mosaics is presented. The algorithm first uses principles of topographic openness, pattern rec...
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Giuseppe Ciaburro, Gino Iannace, Laura Ricciotti, Antonio Apicella, Valeria Perrotta and Raffaella Aversa
In this paper, a metamaterial design based on lightweight geopolymeric elements was reported for applications in acoustic insulation.
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Moritz Neubauer, Julia Genßler, Vincent Radmann, Fleming Kohlenberg, Michael Pohl, Kurt Böhme, Karsten Knobloch, Ennes Sarradj, Klaus Höschler, Niels Modler and Lars Enghardt
This paper presents a combined experimental and numerical investigation on a novel liner concept for enhanced low-frequency and broadband acoustic attenuation. In particular, two different realizations, derived from conventional Helmholtz resonators (HR)...
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Luigi Calabrese and Edoardo Proverbio
The complex nature of the damage evolution in stress corrosion cracking (SCC) leads to explore for new investigation technologies in order to better identify the mechanisms that supervise the initiation and evolution of the damage as well to provide an i...
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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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Sergey Zhidkov, Andrey Sychev, Alexander Zhidkov and Alexander Petrov
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Umberto Iemma
The advent, during the first decade of the 21st century, of the concept of acoustic metamaterial has disclosed an incredible potential of development for breakthrough technologies. Unfortunately, the extension of the same concepts to aeroacoustics has tu...
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Kimihiro Sakagami, Fumiaki Satoh and Akira Omoto
Geo-referenced sound data are often used in the field of acoustics education to learn about the urban acoustic environment. Simple soundwalks and sound collections are also employed, in which acquiring additional information such as visual data, recorded...
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Nan Jia, Bin Li, Jun Zhu, Haifeng Wang, Yuliang Zhao and Wenwen Zhao
The identification of chicken sex before hatching is an important problem in large-scale breeding applications in the poultry industry. This paper systematically reviews the key techniques for in ovo sexing of chicken eggs before hatching and presents re...
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Anuj Rekhy, Robert Snyder and James M. Manimala
Conventional acoustic absorbers like foams, fiberglass or liners are used commonly in structures for industrial, infrastructural, automotive and aerospace applications to mitigate noise. However, these have limited effectiveness for low-frequencies (LF, ...
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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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Chenhui Zhao and Marehalli G. Prasad
It is known that in the design of quieter mechanical systems, vibration and noise control play important roles. Recently, acoustic black holes have been effectively used for structural design in controlling vibration and noise. An acoustic black hole is ...
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Sangbeom Woo, Timothy Opperwall, Andrea Vacca and Manuel Rigosi
As a key component in power transfer, positive displacement machines often represent the major source of noise in hydraulic systems. Thus, investigation into the sources of noise and discovering strategies to reduce noise is a key part of improving the p...
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Danilo Greco
Acoustic imaging systems construct spatial maps of sound sources and have potential in various applications, but large, cumbersome form factors limit their adoption. This paper investigates methodologies to miniaturize acoustic camera systems for improve...
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