20.500.12556/RUL-94907 Razvoj avtomatskega sistema uglaševanja kitare The Development of Automatic Guitar Tuning System Kitara je eden od najpogosteje uporabljenih glasbil. Za njeno pravilno delovanje je pomembno, da vsaka izmed šestih strun niha s točno določeno osnovno frekvenco. Procesu, kjer le to zagotavljamo, rečemo uglaševanje. Tudi že uglašene strune je potrebno po nekem času ponovno uglaševati, ker se z igranjem in drugimi zunanjimi vplivi strune razglasijo. V praksi pri uglaševanju pomagamo z univerzalnim uglaševalcem. Kljub temu pa se strune še vedno napenja ročno. Cilj zaključne naloge je izdelati avtomatski sistem uglaševanja kitare, pri katerem bi strune napenjal elektromotor. V ta namen smo uporabili mikrokrmilnik Arduino, ki preko mikrofona z ojačevalnim vezjem zaznava akustični signal. Na osnovi le tega določi frekvenco nihanja strune in jo primerja z zahtevano. Na osnovi odstopka pa nato s pomočjo koračnega elektromotorja ustrezno napne struno. A guitar is one of the most popular musical instruments. For its proper functioning every string should oscillate with a specific frequency. A process that accomplishes this is called guitar tuning. Guitar gets out of tune with time. Playing and other factors accelerate this process. Universal tuners can be of a great help in the process of guitar tuning. The peg of the tuning mechanism is however still rotated by hand. The goal of this thesis was the development of an automatic guitar tuning system where electric drive is used to turn the pegs. An Arduino microcontroller was used for this purpose. A signal from a microphone is amplified by electric circuit and send to Arduino microcontroller. After the frequency of this signal is measured, it is compared with the set value. Based on the error signal, the system tunes the string using a stepping motor. kitare uglaševanje krmilni sistemi mikrokrmilniki merjenje frekvenc guitars tuning feedback control systems microcontrollers measuring frequencies true false false Slovenski jezik Angleški jezik Diplomsko delo/naloga 2017-09-11 13:30:13 2017-09-11 13:30:15 2023-11-10 13:40:47 0000-00-00 00:00:00 2017 0 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 1970-01-01 199969 935.pdf 935.pdf 1 1ED17ABF490DC3304251B0450DBDAA18 d0050bcefc2f1ce468ebe9c6f44eaccad325742d08bdd649e1f0ade49a4067ea a17d9fb0-a1b3-11eb-a523-00155dcfd717 20.500.12556/rul/44bc4620-5453-459b-a3e0-74633ead572c https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=103386 Fakulteta za strojništvo 0 0 0