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Researches in loudness measurement

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2 Author(s)
Bauer, B.B. ; CBS Laboratories, Stamford, Conn. ; Torick, E.

CBS Laboratories has performed a fundamental study of loudness from which several results already have emerged. A new set of equal-loudness contours has been obtained using octave bands of "pink" noise in a simulated living room environment. The CBS Laboratories contours differ radically from the Fletcher-Munson contours. Forward vs. backward inhibition tests were performed, from which a new summation function was deduced. A new duration vs. loudness level function was obtained for octave bands ranging in frequency from 125 Hz to 8 kHz. These data are being incorporated in an instrument for measuring sensory loudness level.

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Audio and Electroacoustics, IEEE Transactions on  (Volume:14 ,  Issue: 3 )