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Master's Dissertation
DOI
https://doi.org/10.11606/D.18.2018.tde-25012018-113143
Document
Author
Full name
Carlos Alberto Ynoguti
Institute/School/College
Knowledge Area
Date of Defense
Published
São Carlos, 1995
Supervisor
Committee
Joaquim, Marcelo Basílio (President)
Pereira, José Carlos
Romero, Roseli Aparecida Francelin
Title in Portuguese
Síntese de sons musicais baseada na transformada de Karhunen-Loève
Keywords in Portuguese
Áudio
Karhunen-Loève
Processamento de sinais
Síntese
Sons musicais
Abstract in Portuguese
Tradicionalmente, a técnica de síntese aditiva com funções base de Fourier é a que tem apresentado melhores resultados no que diz respeito à qualidade dos sons gerados. Entretanto, a carga computacional imposta por esta técnica é extremamente alta, dificultando assim a sua implementação em tempo real. Substituindo as funções de Fourier por outras mais complexas, derivadas das técnicas estatísticas de Karhunen-Loève, consegue-se uma redução na quantidade de operações necessárias. Neste trabalho foi estudado e implementado em microcomputador um modelo de síntese aditiva baseada em análise utilizando a transformada de Karhunen-Loève.
Title in English
not available
Keywords in English
not available
Abstract in English
Traditionally, the Fourier based aditive synthesis is the method that have achieved the best results concerning to the quality of the generated sounds. However, the computacional load imposed by this technique is extremely high, difliculting its real time implementation. Substituting the Fourier functions by another set of more complex functions, derived from the Karhunen-Loève statistical techniques, one achieves a reduction on the amount of the necessary operations so as to viabilize its real time implementation.
 
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Publishing Date
2018-01-25
 
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