Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2018-01-15T21:40:47Z No. of bitstreams: 1 JairDaSilvaAlves_DISSERT.pdf: 33462595 bytes, checksum: 8bd795ddf58f46634b22553c3d2e9f66 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2018-01-17T13:43:07Z (GMT) No. of bitstreams: 1 JairDaSilvaAlves_DISSERT.pdf: 33462595 bytes, checksum: 8bd795ddf58f46634b22553c3d2e9f66 (MD5) / Made available in DSpace on 2018-01-17T13:43:07Z (GMT). No. of bitstreams: 1 JairDaSilvaAlves_DISSERT.pdf: 33462595 bytes, checksum: 8bd795ddf58f46634b22553c3d2e9f66 (MD5) Previous issue date: 2017-12-01 / Em um ambiente utilizado principalmente para apresenta??es musicais, o grau de inteligibilidade das informa??es musicais e de outros aspectos ac?sticos ? o que possibilita a an?lise da qualidade dos sons que s?o recebidos pelos ouvintes e, consequentemente, permite uma avalia??o das caracter?sticas ac?sticas da sala. Essa an?lise ? realizada por meio da avalia??o de par?metros objetivos, os quais podem ser obtidos atrav?s de t?cnicas de medi??o e de simula??o computacional. Com o avan?o da tecnologia e o desenvolvimento de pesquisas referentes ? ac?stica arquitet?nica ao longo dos anos, v?rios softwares de avalia??o da qualidade ac?stica de salas foram desenvolvidos, tornando-os ferramentas essenciais para a previs?o do comportamento do som em diversos tipos de ambientes. Este estudo tem por objetivo avaliar, por meio de medi??o e simula??o computacional, par?metros que s?o capazes de representar o comportamento ac?stico do Audit?rio Onofre Lopes (AOL) da Escola de M?sica da Universidade Federal do Rio Grande do Norte (EMUFRN), no intuito de propor diretrizes gerais de projeto para otimiza??o das caracter?sticas ac?sticas desse ambiente. Os par?metros ac?sticos foram obtidos, primeiramente, a partir da medi??o da resposta impulsiva da sala. Atrav?s da constru??o de um modelo digital tridimensional do audit?rio, as caracter?sticas ac?sticas dos materiais que revestem as superf?cies internas da sala, bem como as caracter?sticas eletroac?sticas das fontes sonoras presentes no ambiente foram modeladas com o aux?lio de um software de simula??o computacional. Ap?s a valida??o do modelo, realizada atrav?s da compara??o dos resultados de Tempo de Reverbera??o (RT) obtidos nas medi??es e nas simula??es, os par?metros ac?sticos Early Decay Time (EDT), Clareza (C80), Defini??o (D50), Tempo Central (Ts) e Speech Transmission Index (STI) foram simulados e avaliados de acordo os valores recomendados na literatura. Como resultado da pesquisa, os valores coletados nas medi??es e simula??es apontaram que o AOL ? um espa?o que possui caracter?sticas ac?sticas inadequadas ? fala e pouco eficientes quando utilizado para m?sica. Dessa forma, algumas diretrizes de condicionamento ac?stico foram simuladas, com o objetivo de aperfei?oar a resposta temporal ac?stica para a utiliza??o do audit?rio como um espa?o destinado a m?ltiplos usos. / In a room used mainly for musical presentations, the intelligibility levels of musical information and other acoustic aspects allow the analysis of the quality of the sounds received by the listeners and, consequently, allows an evaluation of room's acoustic characteristics. This analysis is performed by the evaluation of objective parameters, which can be obtained by measurement and computational simulation techniques. With the advancement of technology and the development of research related to architectural acoustics over the years, several software for evaluating acoustic room quality were developed, making them essential tools for predicting the behavior of sound in different types of halls. The aim of this study is to evaluate, through computer measurement and simulation, parameters that are able to represent the acoustic behavior of the Onofre Lopes Auditorium (AOL) of the School of Music of the Federal University of Rio Grande do Norte (EMUFRN), in order to propose general guidelines to optimize its acoustic characteristics. These room's acoustic parameters were obtained by measuring it impulse response. Through the construction of a threedimensional digital model of the auditorium, the acoustic characteristics of the materials that covers its internal surfaces, as well electroacoustic characteristics of the sound sources present in this space were modeled with the aid of computer simulation software. After the validation of the model, by comparing Reverberation Time (RT) results obtained in the measurements and simulations, the acoustic parameters Early Decay Time (EDT), Clarity (C80), Definition (D50), Center Time (Ts) and Speech Transmission Index (STI) were simulated and evaluated according to the values recommended in the literature. As a result of this research, the values collected in the measurements and simulations pointed out that the AOL is a space that has inadequate acoustic characteristics to speech and may be considered inefficient when used for music. Thus, some acoustic conditioning guidelines were simulated to improve the acoustic temporal response to the use of the auditorium as a multipurpose hall.