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Heart Sound Sensing Through MEMS Microphone

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Sensors for Everyday Life

Part of the book series: Smart Sensors, Measurement and Instrumentation ((SSMI,volume 22))

Abstract

MEMS are becoming the most popular and playing a vital role in development of the non-invasive diagnostic instruments. The MEMs microphones are very useful in development cardio auscultation systems due to its size and free ambient noises. The heart sound signals can be detected at cardiac auscultation points using different microphones. This chapter covers the detection of heart sound signals (S1 and S2) using the inexpensive MEMS microphone. The MEMS microphone has been suitably interfaced with a microcontroller. Using an algorithm that has been developed, the non-stationary phonocardiograph (PCG) signal has been transformed into stationary systole and diastole signals for further analysis. Further the systole and diastole signals have been analysed using Fast Fourier transform to detect the high intensity peaks of S1 and S2 in the frequency range of 50–200 Hz.

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Author information

Authors and Affiliations

  1. Centre for VLSI and Embedded System Technology, International Institute of Information Technology Hyderabad, Hyderabad, India

    Madhubabu Anumukonda

  2. School of Computing and Electrical Engineering, Indian Institute of Technology Mandi, Mandi, India

    Shubhajit Roy Chowdhury

Authors
  1. Madhubabu Anumukonda
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  2. Shubhajit Roy Chowdhury
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Corresponding author

Correspondence to Madhubabu Anumukonda .

Editor information

Editors and Affiliations

  1. Instituto de Telecomunicações and ISCTE-IUL, Lisbon, Portugal

    Octavian Adrian Postolache

  2. Department of Engineering, Faculty of Science and Engineering, Macquarie University, Sydney, New South Wales, Australia

    Subhas Chandra Mukhopadhyay

  3. Institute of Fundamental Sciences, Massey University, Palmerston North, New Zealand

    Krishanthi P. Jayasundera

  4. Department of Electrical and Computer Engineering, University of Auckland, Auckland, New Zealand

    Akshya K. Swain

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Anumukonda, M., Chowdhury, S.R. (2017). Heart Sound Sensing Through MEMS Microphone. In: Postolache, O., Mukhopadhyay, S., Jayasundera, K., Swain, A. (eds) Sensors for Everyday Life. Smart Sensors, Measurement and Instrumentation, vol 22. Springer, Cham. https://doi.org/10.1007/978-3-319-47319-2_7

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  • DOI: https://doi.org/10.1007/978-3-319-47319-2_7

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-47318-5

  • Online ISBN: 978-3-319-47319-2

  • eBook Packages: EngineeringEngineering (R0)

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