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http://dx.doi.org/10.5369/JSST.2006.15.4.223

Design of FIR filter using direct memory access for voice signal processing module in implantable middle ear hearing devices  

Kim, Jong-Min (Dept. of Medical and Biological Engineering, Graduate School, Kyungpook National University)
Park, Il-Yong (Advanced Research Center for Recovery of Human Sensibility, Kyungpook National University)
Yoon, Young-Ho (School of Electrical Engineering and Computer Science, Kyungpook National University)
Kim, Min-Kyu (Dept. of Medical and Biological Engineering, Graduate School, Kyungpook National University)
Lim, Hyung-Gyu (School of Electrical Engineering and Computer Science, Kyungpook National University)
Han, Ji-Hun (School of Electrical Engineering and Computer Science, Kyungpook National University)
Kim, Myoung-Nam (Dept. of Biomedical Engineering, School of Medicine, Kyungpook National University)
Cho, Jin-Ho (School of Electrical Engineering and Computer Science, Kyungpook National University)
Publication Information
Journal of Sensor Science and Technology / v.15, no.4, 2006 , pp. 223-230 More about this Journal
Abstract
An FIR filter for digital voice signal processing has been designed and implemented using a microcontroller in implantable middle ear hearing devices (IMEHDs). The designed digital voice signal processing filter which has fast and accurate filtering operation and controllable filter characteristics has been implemented using a hardware multiplier and a direct memory access (DMA) in the low power microcontroller, MSP430F169. It has been confirmed that each of the implemented 6-orders Remez FIR filters with 1 channel and 2 channels can be applied to the voice signal processing module of IMEHDs based on the evaluation results of the filtering performance experiment.
Keywords
implantable middle ear hearing devices (IMEHDs); MSP430F169; direct memory access (DMA);
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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