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Loudness Its Definition Measurement and Calculaiton -- Bell Telephone system Monograph B-756. Harvey Fletcher, W A. Munson.

Loudness Its Definition Measurement and Calculaiton -- Bell Telephone system Monograph B-756.

Bell Telephone System no date, inside front cover notes publication in the Besll System Technical Journal October 1933; 54 pages, diagrams.
Condition: Very Good, white-cream colored covers, small monograph format, 3-hole punched at margin as issued, light old staining across top of front cover and rear cover. Staples are secure, pages clean and unmarked.
Price: $15.00
Item no. R178
Item Description
Definition of Terms used in Noise Measurements and a Description of Methods for Measuring and Computing the Loudness of Sounds Monograph B-756, Acoustics.