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Low power area efficient adaptive FIR filter for hearing aids using distributed arithmetic architecture

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Abstract

In this paper, we propose a low complex architectural design for hearing aid applications. In this, we recast the hearing aid using distributed arithmetic (DA), which enables the implementation of hearing aid without multipliers. The design is based on the distributed arithmetic based formulation of it. It is further shown that high order filters, which are required to implement high-speed hearing aid can be realized using only look-up-tables and shift-accumulate operations. A novel approach was proposed to replace the decimation filter of a hearing aid using multiplier less architecture with a single DA unit. By proper initialization, it is shown that low complexity hearing aid architecture can be obtained. The proposed distributed arithmetic architecture is implemented in ASIC SAED 90 nm technology. The application of hearing aid is implemented in Matlab Simulink and Xilinx system generator tool. The obtained results show \(20\%\) less area delay product and \(40\%\) less power delay product when compared with the existing architecture.

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Authors and Affiliations

  1. Department of Computer Science, Adhiparasakthi College of Arts and Science, Kalavai, Tamilnadu, India

    P. V. Praveen Sundar

  2. Thanthai Periyar Government Institute of Technology, Vellore, Tamilnadu, India

    D. Ranjith

  3. CSE, Sri Balaji Chockalingam Engineering College, Arni, Tamilnadu, India

    T. Karthikeyan

  4. MVJ College of Engineering, Bangalore, India

    V. Vinoth Kumar

  5. Vellore Institute of Technology, Vellore, Tamilnadu, India

    Balajee Jeyakumar

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  1. P. V. Praveen Sundar
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  2. D. Ranjith
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  3. T. Karthikeyan
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  4. V. Vinoth Kumar
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  5. Balajee Jeyakumar
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Correspondence to P. V. Praveen Sundar.

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Praveen Sundar, P.V., Ranjith, D., Karthikeyan, T. et al. Low power area efficient adaptive FIR filter for hearing aids using distributed arithmetic architecture. Int J Speech Technol 23, 287–296 (2020). https://doi.org/10.1007/s10772-020-09686-y

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  • DOI: https://doi.org/10.1007/s10772-020-09686-y

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