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It is difficult to capture pure speech signals with a single acoustic sensor since the speech signal and noise signal are often overlapped in the spectrum. Besides, it is also hard to receive the three-dimensional and real-time acoustic data of measured objects by a single acoustic sensor. In this paper, we propose a new type 2-D acoustic sensor array based on graphene film, which consists of 256...
Acoustic sensors are used for tracking, amplifying, and transferring sound signal widely. There are some limitations on the traditional acoustic sensors, however, such as narrow bandwidth and low sensitivity. It is extremely difficult to capture pure sound signal with a single acoustic sensor since the noise signal and speech signal are often overlapped in the spectrum. We present a two-dimensional...
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