Solution of the Environmental Noise Problem Generated …
147
Fig. 1 Sketchup
representation of the noise
sources affected office
building and noise level
measurement positions
during the initial evaluation
positions 2 and 5 are presented in Fig. 2 (Top). The resolution of the observed noise
levels is in the third-octave bands.
At 1 m distance HVAC units produced noise level between 79.8 dB and 81.8 dB
(positions 1, 2, and 3), while near the noise receiver building (positions 4, 5, and
6) measured noise was between 64.3 and 65.2 dB. Once the HVAC units have been
Fig. 2 Noise levels in third-octave band averaged per each band for three repeated measurements
at position 2 (Top) and position 5 (bottom)
147
Fig. 1 Sketchup
representation of the noise
sources affected office
building and noise level
measurement positions
during the initial evaluation
positions 2 and 5 are presented in Fig. 2 (Top). The resolution of the observed noise
levels is in the third-octave bands.
At 1 m distance HVAC units produced noise level between 79.8 dB and 81.8 dB
(positions 1, 2, and 3), while near the noise receiver building (positions 4, 5, and
6) measured noise was between 64.3 and 65.2 dB. Once the HVAC units have been
Fig. 2 Noise levels in third-octave band averaged per each band for three repeated measurements
at position 2 (Top) and position 5 (bottom)