microphone arrays
The Fusion of Distributed Microphone Arrays for Sound Localization
... In practice, the SOF can be directly measured by plac- ing stationary sound sources at known locations in space and comparing it with the array SLF or by modeling the environ- ment and the microphone arrays ...
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Acoustic source localization in mixed field using spherical microphone arrays
... Spherical microphone arrays have been used for source localization in three-dimensional space recently. In this paper, a two-stage algorithm is developed to localize mixed far-field and near-field acoustic ...
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Microphone Arrays as a Leakage Detection Tool in Industrial Compressed Air Systems
... of microphone arrays are well described in the book by Johnson and Dudgeon ...The microphone array is virtually focused on each point of the measurement plane (or object in 3D) and the relative ...
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Acoustic Camera Design with Different Types of MEMS Microphone Arrays
... microphones, it is possible for each individual to measure urban environmental noise [7, 8, 9]. Moreover, different measurements indicated that the MEMS microphones overall agree well with manufacturers’ specifications ...
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Geometry descriptors of irregular microphone arrays related to beamforming performance
... appropriate microphone distributions for given acoustic environments ...planar microphone distributions, which are more applicable for indoor applications, such as audio surveillance ...the ...
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Time-domain Beamforming using 3D-microphone arrays
... 3D- Microphone-Arrays the following examples of acoustic photos show a selection of generated sounds to observe the mapping quality of different kind of noise ...
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Source localization in reverberant rooms using Deep Learning and microphone arrays
... Sound sources localization (SSL) is a subject of active research in the field of multi-channel signal process- ing since many years, and could benefit from the emergence of data-driven approaches. In the present paper, ...
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Signal processing techniques for seat belt microphone arrays
... The next steps towards improving the system can be made in several directions: since the echo cancelation schemes involve(s) several adaptive filters and control units, methods to reduce complexity by reducing process- ...
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Performance comparison between steered response power and generalized cross correlation in microphone arrays for sound source localization
... circular microphone arrays for the two different methods, then analyzed under the performance criteria described before, which are localization accuracy and computational ...
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Microphone Arrays and Neural Networks for Robust Speech Recognition
... vIicrophone Arrays and Neural Networks for Robust Speech Recognition vIicrophone Arrays and N e u r a l N e t w o r k s for R o b u s t S p e e c h R e c o g n i t i o n C Che +, Q Lin +, J Pearson*,[.] ...
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Acoustic Source Localisation by Direction of Arrival Estimation and Microphone Arrays
... The main aim is to locate the origin of disturbance or sound by passive localization which consists of microphone grid array and a wireless sensor network. The sound disturbance is detected by the sensor network ...
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Shooter Localization in Wireless Microphone Networks
... more microphone arrays are used, each synchronously sampling acoustic phenomena associated with ...the microphone arrays on their ...one microphone only is described in ...
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Effects of Interchannel Crosstalk in Multichannel Microphone Technique
... main microphone arrays that are used specifically for accurate pickup of direct sound so that sources can be easily localised on reproduction, together with separate rear microphone arrays ...
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Directional microphone array for security applications
... Microphone arrays are designed to take advantage of the fact that sound signals, both desired and undesired, generally originate from different points in space (Brandstein & Ward ...filtering, ...
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Microphone Diversity Combining for In-Car Applications
... the microphone inside the car, is, however, di ffi cult to ...between microphone and speaker depends significantly on the position of the driver and therefore on the size of the ...
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High Pressure Measurements with the High Pressure Microphone Calibrator Type Introduction. The High Pressure Microphone Calibrator Type 4221
... cluding pressure equalization vent and any leakage path, be submitted to the sound field. As air compli- ance of the internal cavity dec- reases w i t h increasing static pres- sure, the microphone sensitivity ...
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A MEMS Capacitive Microphone Modelling for Integrated Circuits
... minimize microphone size, a small diaphragm is ...the microphone, which is caused by the small size of the diaphragm, is compensated by making slots around the diaphragm, as shown in Figure ...the ...
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Design and development of a fibre optic microphone
... 7.2 Extrinsic Fabry-Perot Interferometer based Sensors 29 Extrinsic Fabry-Perot Interferometers (EFPI) are very promising configuration for acoustic or vibration sensing, due to the ability to be able to sense extremely ...
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Design and development of a fibre-optic microphone
... It may seem obvious that disabling the laser, which is a power level of 0mW, would result in no output. However, this provides valuable insight into the operation of the fibre-optic microphone. Because the the ...
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An informal comparison between surround microphone techniques
... The OCT-inspired technique was the least preferred in general. It was the best technique as far as the localisation of sound sources were concerned, but the images were perceived to be too distant. The sources also ...
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