PERANCANGAN PENGHAPUSAN DERAU AKTIF PADA HEADPHONE MELALUI METODE FILTERED X LEAST MEAN SQUARE

FIRDAUSI, AZHAR RASYID (2016) PERANCANGAN PENGHAPUSAN DERAU AKTIF PADA HEADPHONE MELALUI METODE FILTERED X LEAST MEAN SQUARE. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Derau atau noise yang berasal dari lingkungan dapat mengganggu orang yang menggunakan headphone. Meskipun sebagian headphone mampu menghapus derau secara pasif, tidak semua derau dapat diredam terutama untuk derau yang memiliki frekuensi rendah. ANC headphone menghapus derau yang memiliki frekuensi rendah yang masuk ke dalam headphone dengan sinyal interferensi yang menghancurkan sinyal derau yang disebut dengan anti noise. Namun ANC memiliki beberapa permasalahan seperti terdapat waktu tunda pada sinyal anti noise. Metode Filtered x Least Mean Square digunakan untuk mengatasi permasalahan tersebut. Hasil simulasi menunjukkan bahwa algoritma FxLMS mampu meredam suara mobil dalam bentuk rekaman sebesar 30 dB pada frekuensi 0 Hz sampai dengan 1000 Hz dan 5 dB ketika suara rekaman mobil di atas 1500 Hz dengan step size sebesar 0,5. "=============================================================================================" Noise that comes from the environment can interfere with people who use headphones. Although most headphones are capable of removing noise passively, not all noise can be muted especially for noise that has a low frequency. ANC headphones remove noise that has a low frequency that is entered into the headphones with a devastating signal interference signal noise called anti noise. But the ANC has some problems as there is a time delay on the anti noise signal. Method of Filtered x Least Mean Square is used to overcome these problems. Simulation results show that the FxLMS algorithm able to mute the car in the form of recordings almost 30 dB at frequencies 0 Hz up to 1000 Hz and 5 dB when the voice of the car above 1500 Hz with a step size of 0.5.

Item Type: Thesis (Undergraduate)
Additional Information: RSE 621.382 84 Fir p
Uncontrolled Keywords: Active Noise Cancelling Headphone, Filtered x Least Mean Square Method
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5101 Telecommunication
Divisions: Faculty of Industrial Technology > Electrical Engineering > (S1) Undergraduate Theses
Depositing User: Users 13 not found.
Date Deposited: 16 Jan 2017 03:21
Last Modified: 26 Dec 2018 07:41
URI: http://repository.its.ac.id/id/eprint/1597

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