File:Noise Curves Graph Spectrum with NC.jpg

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Noise_Curves_Graph_Spectrum_with_NC.jpg(540 × 403 pixels, file size: 36 KB, MIME type: image/jpeg)

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English: The lowest curve which is not touched by the measured spectrum at any position in the audio frequency range is NC-45. This room has an NC45 rating.
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Author Phonical

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Date/TimeThumbnailDimensionsUserComment
current08:57, 31 March 2016Thumbnail for version as of 08:57, 31 March 2016540 × 403 (36 KB)Phonical (talk | contribs)User created page with UploadWizard

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