Judged Noisiness of a Band of Random Noise Containing an Audible Pure Tone

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Abstract
The experiments reported were designed to obtain further data on the perceived noisiness of complex sounds consisting of a steady‐state pure tone imbedded in a background of random noise. From these data, a method for including a “pure‐tone correction factor” in the calculation of perceived noisiness in PNdB is derived. The proposed procedure should have practical application for the evaluation of sounds from modern‐day jet aircraft or other broad‐band sounds that may contain relatively intense, audible pure‐tone components. Various problems involved in the measurement and interpretation of band spectra for the location of steady‐state pure‐tone components in broad‐band random noise are discussed.

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