Noise Health Close
 

Figure 8: Mean A-weighted signal-to-noise ratio at threshold (in dB) in the four selected background noises, with and without hearing protectors. The upper (lower) panel refers to the group of subjects wearing earmuffs (earplugs). Error bars designate ±1 standard error of the mean

Figure 8: Mean A-weighted signal-to-noise ratio at threshold (in dB) in the four selected background noises, with and without hearing protectors. The upper (lower) panel refers to the group of subjects wearing earmuffs (earplugs). Error bars designate ±1 standard error of the mean