II Seminário de Música, Ciência e Tecnologia

Resumo

PORTELA, Marcelo Santos. Um sistema de baixo custo para o aluno de  acústica de salas. In Anais do 2. II Seminário de Música, Ciência e Tecnologia, 2005, São Paulo (SP) [online]. 2005 [citado 05 Maio 2024]. Disponível em: <http://www.proceedings.scielo.br/scielo.php?script=sci_arttext&pid=MSC0000000102005000100004&lng=pt&nrm=iso> .

For the student's first contact with the room acoustics concepts, more accessible resources should be used. The article relates the development steps of an acoustic parameters measurement system for an engineering graduation project. It consists of a computer equipped with a stereo soundboard, two microphones, a mixer, a power amplifier, an omnidirectional soundsource (according to the ISO 3382 standard) and a subwoofer. The software used was the Aurora, as extension (plug-in) of CoolEdit (now Adobe Audition), using swept sine signals.

Palavras-chave : Room Acoustics; Measuring Techniques in Acoustics; Acoustical Parameters.