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Figure 3: Comparison loudness balance attenuation (blue diamond = right ear PAR; red square = left ear PAR) with SNR (green triangles), NRR (purple x) and NRRsf (light blue *) for various earplugs. [From VeriPRO® fit-testing conducted by Ewa Kotarbinska, Electroacoustic Department, Warsaw University of Technology[13]]

Figure 3: Comparison loudness balance attenuation (blue diamond = right ear PAR; red square = left ear PAR) with SNR (green triangles), NRR (purple x) and NRRsf (light blue *) for various earplugs. [From VeriPRO® fit-testing conducted by Ewa Kotarbinska, Electroacoustic Department, Warsaw University of Technology[13]]