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Primjena CWT u analizi muzičkih signala

Fakultet elektrotehnike i računarstva Zavod za elektroničke sustave i obradu informacija Napredne metode digitalne obrade signala. Primjena CWT u analizi muzičkih signala. Tomislav Devčić Zvonimir Lucić. Uvod. Problem automatske glazbene transkripcije Prepoznavanje nota i tonova

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Primjena CWT u analizi muzičkih signala

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  1. Fakultet elektrotehnike i računarstva Zavod za elektroničke sustave i obradu informacija Napredne metode digitalne obrade signala Primjena CWT u analizi muzičkih signala Tomislav Devčić Zvonimir Lucić

  2. Uvod • Problem automatske glazbene transkripcije • Prepoznavanje nota i tonova • Inteligentna navigacija

  3. Problemi • Svaki instrument ima različiti harmonijski sastav signala • “Prljavi” tonovi • Ne zna se obično koji instrumenti korišteni i koliko njih

  4. Rad na projektu • Skripta u Matlabu • Analiza zvuka gitare • Prepoznavanje tonova • Uređivanje spektra • Grafički prikaz - animacija

  5. Morlet • Korišteni valić je kompleksni Morlet

  6. CWT signala

  7. Nakon rezanja slabih signala

  8. Popravak spektra

  9. Prikaz tonova u vremenu

  10. Animacija: pritisnuta polja na vratu gitare

  11. To je to!

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