Implementasi Metode Transformasi Biliniear Pada Filter Digital Infinite Impulse Response (IIR) Menggunakan Raspberry Pi

Islamiyah, Murni Sri Rahayu; Saptono, Rachmad; Hadiwiyatno, Hadiwiyatno

doi:10.33795/jartel.v11i1.28

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Issn 2355-3286 B Digital Filters1

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2023

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“…Although more challenging to design, the IIR filter is more efficient and cheaper. Furthermore, the IIR filter has feedback, so it has an infinite time limit on its impulse response [20]. IIR filters have several methods with distinct characteristics, including Butterworth, Chebyshev, and Elliptic.…”

Section: Issn 2355-3286 B Digital Filtersmentioning

confidence: 99%

Comparison of FIR and IIR Filters for Audio Signal Noise Reduction

Liu,

Sabrina,

Hardson

2023

ULTIMA Computing

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An audio signal is often used as a medium for spreading information. However, this signal is easily disrupted by noise from the environment around which the signal is taken, so a filter is needed to eliminate it. In this article, sound signals will be filtered using two types of filters, namely FIR with Hamming window method and IIR with the Butterworth method. Both filters are applied as low pass types with a cut-off frequency of 4000 Hz and an order of 100. Both filters will be employed to filter a 5000 Hz generated audio noise. The SNR and execution time of the filtered signal will then be compared to determine which filter is more effective. The result shows that FIR filters perform better than IIR filters for filtering audio noise.

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Section: Issn 2355-3286 B Digital Filtersmentioning

confidence: 99%