II Seminário de Música, Ciência e Tecnologia

Resumen

PORTELA, Marcelo Santos. Um sistema de baixo custo para o aluno de  acústica de salas. In Anales del 2. II Seminário de Música, Ciência e Tecnologia, 2005, São Paulo (SP) [online]. 2005 [citado 25 Abril 2024]. Disponible en: <http://www.proceedings.scielo.br/scielo.php?script=sci_arttext&pid=MSC0000000102005000100004&lng=es&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.

Palabras llave : Room Acoustics; Measuring Techniques in Acoustics; Acoustical Parameters.