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    Development of multi-channel data logger for passive acoustic measurements

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    The_Jou_Acoust_Soci_India_45_35.pdf (449.3Kb)
    Date
    2018
    Author
    Fernandes, W.A.
    Agarvadekar, Y.
    Chakraborty, B.
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    Abstract
    Recording of passive acoustic data involves a listening device along with an instrumentation system. The passive listening device transforms mechanical disturbances to electrical signals. The subsequent sampling and logging of the transformed data is accomplished by employing the instrumentation system. One such system is the Low cost "Multi-Channel Data Logger" (MCDL) that is indigenously developed at CSIR-National Institute of Oceanography with a capability to record 8- channels of passive acoustic signals simultaneously. Here we have presented the designed and developed MCDL system interfaced with a six channel hydrophone array to log ambient noise data from the underwater environment and also connected with dual low cost high sensitivity microphones for recording terrestrial ambient noise signals. The laboratory tests & field trials along with the data analysis results are presented to demonstrate the MCDL's multi-platform functionality
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    http://acoustics.org.in/wp-content/uploads/2018/09/JASI-45-1-2018.pdf
    http://drs.nio.org/drs/handle/2264/7946
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