Vol. 13 No. 22 (1998): Acústica e Vibrações 22

Summary content:

• Laboratory Comparison in Measurement of Sound Absorption in Reverberant Chambers;
• Annoying Noise Generated in Building Hydraulic Installations and the Need for Brazilian Standardization;
• European Policies on Environmental Noise and the Iberian Space; and
• Measurement and Evaluation of Noise in the Work Environment.