Abstract
An efficient program for determination of loudness as specified by Zwicker [E. Paulus and E. Zwicker, “Computer programs for calculating loudness from 1/3 octave band levels or from critical band levels” (in German), Acustica 27, 253 (1972)] is made to operate on a portable real‐time analyzer. The program controls the measurement and calculates the loudness as per ISO R 532B. The user may view the results graphically on the RTA's black and white monitor or in full color on an external monitor. This completely automatic system operates without the use of an external computer due to the unique internal BASIC programmability of the real‐time analyzer used. The user may easily modify the program to meet his/ her own requirements incorporating EPNdB, Stevens Loudness, etc.
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