67
fg 13 Reverberation time underneath the platform cover.
fg 14
Calculation model: position of the loudspeakers under the
canopy.
fg. 15.1 The platform canopy with sound refecting roof.
fg. 15.2 The platform canopy with sound absorbing roof.
fg. 16 Cumulative distribution of the speech intelligibility levels on the
platforms.
fg. 15.1
fg. 15.2
fg. 14
fg. 16
canopy without sound absorption
canopy with a soundabsorbing roof
cumulative distribution of speech intelligibility
speech intelligibility (STI)
fg 13
roof without sound absorption
cover with a sound-absorbent roof
reverberation time (s)
frequency (Hz)