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NTL Classification:NTL-AVIATION-AVIATIONNTL-AVIATION-Aviation Energy and EnvironmentNTL-ENERGY AND ENVIRONMENT-Aviation Energy and Environment
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Abstract:Of the 21 Helicopters represented in INM 7.0b, only five include the tone-corrected metrics. The calculation of these metrics involves the analysis of 1/3 octave-band data obtained during the source data measurement process, and requires sound-pressure levels at all measured frequency bands (50-10,000 Hz) for the duration of the aircraft event. A census of data availability was undertaken for helicopters currently in the INM, to determine whether available source data were sufficient to reprocess and calculate the tone-corrected metrics.
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