Brazilian professional recording studios: Analysis and diagnostics of their acoustical properties

Acoustic measurements and design characteristics from a sample of Brazilian professional recording studios located in Sao Paulo and Rio de Janeiro will be presented and discussed. Noise levels, EDT (early decay time), RT20 and RT30 measured in the studios and control rooms will be presented and compared. From these results, the project solutions will be analyzed to check how each recording environment is compatible with its acoustical needs and with the contemporary recording technology. The main goal is to establish guidelines and objective acoustical parameters to be used in the design of new recording studios. (To be presented in Portuguese.)