II Seminário de Música, Ciência e Tecnologia

Resumo

Campolina Bruno Lopes, Santos José Maria Campos dos. Caracterização de padrões de radiação de um violão. In: Anais do 2. II Seminário de Música, Ciência e Tecnologia [Anais online]; 2005   00; São Paulo, SP, Brasil. 2005 [citado 2024 Maio 18]. Disponvel em: URL: http://www.proceedings.scielo.br/scielo.php?script=sci_arttext&pid=MSC0000000102005000100008&lng=pt&nrm=van .

The subjective quality of an instrument is related to certain physical properties that are different for each manufactured instrument. In this paper is analyzed for an acoustic guitar one important property in this subject, the radiation pattern, that means how the sound propagate when distancing from the instrument depending on the bands of frequencies reached. The technique used is the Nearfield Acoustic Holography. To do this, values of the acoustical pressure are obtained in a matrix of points chosen along the guitar, and for some values of natural frequencies the respective graphics are plotted.

Palavras-chave : Musical Acoustics; Acoustics of Musical Instruments; Acoustic Holography; Sound Radiation.