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.
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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 > 20201-(S1) Undergraduate Thesis |
| 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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