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Previous issue date: 2014-08-04 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES / O efeito de reverbera??o ocorre pela reflex?o do som nas superf?cies adjacentes ? fontesonora durante sua propaga??o at? o ouvinte e a resposta ao impulso de um ambienterepresenta suas caracter?sticas de reverbera??o. Por ser dependente do ambiente, a reverbera??oleva ao ouvinte caracter?sticas do espa?o onde o som est? sendo reproduzido ecomumente sua aus?ncia n?o soa como ?natural?. Como nem sempre ? poss?vel ter caracter?sticasdesej?veis de reverbera??o em grava??es, m?todos para reverbera??o artificial v?msendo desenvolvidos h? d?cadas, sempre buscando implementa??es mais eficientes e maisfi?is aos ambientes reais. Neste trabalho ? apresentada uma implementa??o em FPGA(Field Programmable Gate Array) de uma estrutura de reverbera??o digital de ?udio cl?ssica,usando filtros allpass, baseada na proposta de Manfred Schroeder, demonstrando autiliza??o de hardware reconfigur?vel como plataforma de desenvolvimento e implementa??ode efeitos digitais de ?udio, com foco nas caracter?sticas de modularidade e de reuso. / Reverberation is caused by the reflection of the sound in adjacent surfaces close to the sound
source during its propagation to the listener. The impulsive response of an environment represents
its reverberation characteristics. Being dependent on the environment, reverberation takes
to the listener characteristics of the space where the sound is originated and its absence does
not commonly sounds like ?natural?. When recording sounds, it is not always possible to have
the desirable characteristics of reverberation of an environment, therefore methods for artificial
reverberation have been developed, always seeking a more efficient implementations and more
faithful to the real environments. This work presents an implementation in FPGAs (Field Programmable
Gate Arrays ) of a classic digital reverberation audio structure, based on a proposal
of Manfred Schroeder, using sets of all-pass and comb filters. The developed system exploits
the use of reconfigurable hardware as a platform development and implementation of digital
audio effects, focusing on the modularity and reuse characteristics
| Identifer | oai:union.ndltd.org:IBICT/oai:repositorio.ufrn.br:123456789/19473 |
| Date | 04 August 2014 |
| Creators | Nascimento, Diego Vin?cius Cirilo do |
| Contributors | 59464305800, http://lattes.cnpq.br/4823406157799513, Martins, Allan de Medeiros, 01979076448, http://lattes.cnpq.br/4402694969508077, Pedrino, Emerson Carlos, 16209356869, http://lattes.cnpq.br/6481363465527189, Oliveira, Jos? Alberto Nicolau de, 09612890404, http://lattes.cnpq.br/2871134011057075, Roda, Valentin Obac |
| Publisher | Universidade Federal do Rio Grande do Norte, PROGRAMA DE P?S-GRADUA??O EM ENGENHARIA EL?TRICA E DE COMPUTA??O, UFRN, Brasil |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/masterThesis |
| Source | reponame:Repositório Institucional da UFRN, instname:Universidade Federal do Rio Grande do Norte, instacron:UFRN |
| Rights | info:eu-repo/semantics/openAccess |
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