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Title:Spektralni analizator avdio signala
Authors:ID Brečko, Andraž (Author)
ID Kos, Marko (Mentor) More about this mentor... New window
Files:.pdf VS_Brecko_Andraz_2024.pdf (3,57 MB)
MD5: 64AA7B2B75544D36D9EB17CB6BAA50DD
 
Language:Slovenian
Work type:Bachelor thesis/paper
Typology:2.11 - Undergraduate Thesis
Organization:FERI - Faculty of Electrical Engineering and Computer Science
Abstract:V diplomskem delu so predstavljeni razvoj, načrtovanje in izdelava analognega spektralnega analizatorja avdio signala. V grobem vezje sestavljajo aktivni pasovnoprepustni filtri drugega reda, detektorji vršne napetosti, logični del vezja, ki skrbi za pošiljanje signalov na prava mesta, ter zadnji, četrti del, ki je sestav prikazovalnikov in so končna enota vezja. Frekvenčni razpon analizatorja sega od 20 Hz do 20 kHz. Koraki med pasovi so odvisni od njihovega števila, v našem primeru pa celoten frekvenčni spekter delimo na 16 pasov. V delu najprej po segmentih predstavimo dele vezja, ki jih najprej teoretično obrazložimo, navedemo morebitne izračune in določevanje komponent ter predstavimo sheme ter tiskanine. Sledijo meritve in ugotovitve. Kljub možnim izboljšavam vezje deluje v skladu z zastavljenimi cilji.
Keywords:avdio signal, spektralna analiza, pasovnoprepustni filter, detektor vršne napetosti, preklopna vezja, stolpčni prikazovalnik
Place of publishing:Maribor
Year of publishing:2024
PID:20.500.12556/DKUM-90668 New window
Publication date in DKUM:22.10.2024
Views:0
Downloads:31
Metadata:XML DC-XML DC-RDF
Categories:KTFMB - FERI
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Licences

License:CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Link:http://creativecommons.org/licenses/by-nc-nd/4.0/
Description:The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.
Licensing start date:13.09.2024

Secondary language

Language:English
Title:Audio signal spectrum analyser
Abstract:The thesis presents the development, planning and production of an analog spectrum analyzer of an audio signal. The rough circuit consists of band-pass filters of the second order filter, peak detectors, the logical part of the link, which takes care of sending signals to the right places, and the last, fourth part, which is the composition of the displays and is the final unit of the link. The frequency range of the analyzer is from 20 Hz to 20 kHz. The steps between the bands depend on the number of them, and in our case the entire frequency spectrum is divided into 16 steps. In the task, we first present a part of the connection by segments, which we first explain theoretically, indicate possible calculations and determination of components, and present schemes and printed materials. Measurements and findings follow. Despite the possible improvements, the circuit works according to the set goals.
Keywords:audio signal, spectral analisys, band-pass filter, peak detector, switching circuits, column display


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