Akustička obrada tonskog studija

undergraduate thesis

• Title (english): Acoustic treatment of recording studio
• Author: Mislav Šalković
• Mentor: Bojan Ivančević (mentor)
• Committee member: Bojan Ivančević (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: 2016-09-09, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering

Abstract

U prostoriji paralelopipednog oblika, sa prosječnim vremenom odjeka 1,5 sekundi, postigli smo da akustičkim tretiranjem smanjenje vremena odjeka na prihvatljivih 0.4 sekunde. Uz smanjenje vremena odjeka, potrebno je bilo i razbiti paralelnost zidova i smanjiti prostornu simetriju radi eliminacije pojave koju nazivamo flutter-jekom ili lepršajućom jekom. Prije nego što smo mogli prostor akustički obraditi bilo je potrebno odrediti početno stanje u prostoriji što smo napravili uz pomoć instrumenata za mjerenje vremena odjeka. Nakon akustičke obrade proveli smo kontrolna mjerenja te se uvjerili da je naš rad bio koristan. Mjerenjem smo također pokušali odrediti točnost simulacije te smo dobili vrijednosti sa relativno malim odstupanjima.

Abstract (english)

In a symetric quadrilateral room, with an average reverberation time of 1,5 seconds, we have succeeded with the use of acoustic treatment to lower that time to an acceptable 0.4 seconds. With the reverbaration time downsized, it was also necessary to break down the symetry and parallelism between the walls to lessen the posibility of the appearance of flutter-echo. Before we could start with the sound treatment, it was necessary to establish the starting condition of the room which was done with the use of sound measurement equipment. After the acoustic treatment of the room we have conducted a series of control measurements to be assured that our work in the room has been useful. Measurement results have also been used to define the quality of the simulation of the same room and it has proven that it had an acceptable deviation from the given values.

• Keywords: studio; absorber; difuzor; flutter-jeka; vrijeme odjeka; Helmholtzov rezonator; zvuk; zvučna izolacija; akustika; simulacija
• Keywords (english): studio; absorber; diffusor; flutter-echo; reverberation time; Helmholtz resonator; sound; soundproofing; acoustics; simulation
• Language: croatian
• URN:NBN: urn:nbn:hr:168:505584
• Study programme: Title: Electrical Engineering and Information Technology; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka elektrotehnike i informacijske tehnologije (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka elektrotehnike i informacijske tehnologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2018-02-06 12:10:56