Vizualizacija i virtualizacija zvuka

master's thesis

• Title (english): Sound visualization and virtualisation
• Author: Darko Škrnički
• Mentor: Siniša Fajt (mentor)
• Committee member: Siniša Fajt (predsjednik povjerenstva)
• Committee member: Antonio Petošić (član povjerenstva)
• Committee member: Miljenko Krhen (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2017-02-24, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering

Abstract

U ovom diplomskom radu predstavljene su neke od tehnika koje se koriste za virtualizaciju i vizualizaciju zvučnih impulsa. Primjena u medicini je od posebne značajnosti i stoga je jedno poglavlje posvećeno objašnjenjima i predstavljanjem metoda. Poseban naglasak je dan na obradu mikrofonskih nizova i obradu više kanalnih signala koji se pritom dobivaju. Pritom su dani temeljni principi i metode lokalizacije izvora. Vezano uz samu lokalizaciju posebna pažnja je dana na realizaciju akustične kamere.

U praktičnom djelu odrađena je obrada više kanalnog signala. Snimanjem su prikupljeni podaci linearnog mikrofonskog niza od 16 mikrofona. Snimljeni su različiti govornici u različitim konfiguracijama i potom je programskom obradom u Matlabu izvršeno izdvajanje pojedinih govornika.

Abstract (english)

In this thesis I have presented some of the techniques used for sound visualization and virtualization. Among others implementation in medicine and the significance for human and animal treatment. Microphone arrays are important part of sound visualization. Due to multichannel signals acquired by the arrays they have also been explained. Main focus throughout the thesis was on sound localization and especially acoustic camera realizations and principles.
As practical work multichannel signal has been recorded by linear microphone array. The record was of multiple human speakers in echoic room. They formed different configurations and took different placement in the room. Later the analysis was made with intention of resolving cocktail party problem and localizing only speaker which we want.

• Keywords: vizualizacija; virtualizacija; akustična kamera
• Keywords (english): visualization; virtualisation; acoustical camera
• Language: croatian
• URN:NBN: urn:nbn:hr:168:089725
• Study programme: Title: 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 resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2019-03-14 01:20:27