prikaz prve stranice dokumenta Audio skretnica za zvučničku kutiju s tri pretvornika koja koristi digitalne valne filtre
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master's thesis
Audio skretnica za zvučničku kutiju s tri pretvornika koja koristi digitalne valne filtre
Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing, 2015. urn:nbn:hr:168:912417
Šiklić, Ivan
University of Zagreb
Faculty of Electrical Engineering and Computing

Institutional repository: FER Repository

Cite this document

Šiklić, I. (2015). Audio skretnica za zvučničku kutiju s tri pretvornika koja koristi digitalne valne filtre (Master's thesis). Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing. Retrieved from https://urn.nsk.hr/urn:nbn:hr:168:912417

Šiklić, Ivan. "Audio skretnica za zvučničku kutiju s tri pretvornika koja koristi digitalne valne filtre." Master's thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, 2015. https://urn.nsk.hr/urn:nbn:hr:168:912417

Šiklić, Ivan. "Audio skretnica za zvučničku kutiju s tri pretvornika koja koristi digitalne valne filtre." Master's thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, 2015. https://urn.nsk.hr/urn:nbn:hr:168:912417

Šiklić, I. (2015). 'Audio skretnica za zvučničku kutiju s tri pretvornika koja koristi digitalne valne filtre', Master's thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, accessed 19 December 2024, https://urn.nsk.hr/urn:nbn:hr:168:912417

Šiklić I. Audio skretnica za zvučničku kutiju s tri pretvornika koja koristi digitalne valne filtre [Master's thesis]. Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing; 2015 [cited 2024 December 19] Available at: https://urn.nsk.hr/urn:nbn:hr:168:912417

I. Šiklić, "Audio skretnica za zvučničku kutiju s tri pretvornika koja koristi digitalne valne filtre", Master's thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, Zagreb, 2015. Available at: https://urn.nsk.hr/urn:nbn:hr:168:912417

Metadata
TitleAudio skretnica za zvučničku kutiju s tri pretvornika koja koristi digitalne valne filtre
Title (english)Audio Crossover For Three-Way Loudspeaker Enclosure Using Digital Wave Filters
AuthorIvan Šiklić
MentorDražen Jurišić (mentor)
Committee memberDražen Jurišić (predsjednik povjerenstva)
Committee memberTomislav Pribanić (član povjerenstva)
Committee memberZvonko Kostanjčar (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Electrical Engineering and Computing
Zagreb
Defense date and country2015-07-17, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Electrical Engineering
Abstract
Cilj prvog dijela rada je napraviti trosmjernu aktivnu digitalnu skretnicu s točkama skretanja od 200 Hz i 2 kHz, optimiziranim IIR odzivom u programskom alatu FilterShop. Tri su zvučnika koja se nalaze u zvučničkoj kutiji – niskotonski, srednjetonski i visokotonski te na svaki od njih treba doći audio signal odgovarajuće frekvencije. Potrebno je također kompenzirati propade u točkama skretanja, što se radi koristeći razne mogućnosti i opcije programskog alata FilterShop. Također, dizajnirana su tri pasivna ljestvičasta RLC filtra koji dokazano imaju manju osjetljivost na tolerancije elemenata u pojasu propuštanja. Oni su pretvoreni u digitalne valne filtre koji imaju manju osjetljivost na kvantizaciju koeficijenata, a dizajn je provjeren u programu MATLAB. Uspoređena je osjetljivost klasičnog IIR digitalnog filtra s ljestvičastim digitalnim valnim filtrom i dobiveni rezultati su u skladu s Fettweis-Orchardovim teoremom – digitalni valni filtar pokazao je puno manju osjetljivost promjena njegove amplitudno-frekvencijske karakteristike na efekte kvantizacije koeficijenata u pojasu propuštanja.
Abstract (english)
The objective of the first part of the thesis is to get a three-way active digital crossover with crossover points of 200 Hz and 2 kHz, optimized IIR response in design tool FilterShop. There are three speakers in the box – woofer, midrange and tweeter, and therefore on each of them an audio signal of the corresponding frequency has to arrive. It is also necessary to compensate for the dips in crossover points, which is done using a variety of features and options of the software tool FilterShop. Also, three passive RLC ladder filters are designed, that are proved to have lower sensitivity to component tolerances in the passband of the filter. They have been transformed into digital wave filters having lower sensitivity to coefficient quantization and the design has been tested and verified in the program MATLAB. Sensitivity of the digital wave filter has been compared to the sensitivity of the classical IIR digital filter and the obtained results are along the Fettweis-Orchard theorem – digital wave filter is less sensitive to changes of its amplitude-frequency characteristic due to coefficient quantization effect in the passband.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:168:912417
Study programmeTitle: Electrical Engineering and Information Technology
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka elektrotehnike i informacijske tehnologije (magistar/magistra inženjer/inženjerka elektrotehnike i informacijske tehnologije)
Type of resourceText
File originBorn digital
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Created on2018-02-06 12:16:56