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Accession Number:
AD0271605
Title:
MASKING OF PURE TONES AND SPEECH
Corporate Author:
BOLT BERANEK AND NEWMAN INC CAMBRIDGE MA CAMBRIDGE United States
Report Date:
1961-01-01
Abstract:
The masking effects of intense pure tones and bands of noise upon other pure tones and speech were investigated. Of perhaps special importance are the masking effects of very intense low frequency sounds, in that low frequency sounds are present near missile launch sites. On the basis of the test results, spread of masking functions were obtained that can be incorporated into procedures for the calculation of a new Articulation Index that will be valid for a much wider variety of noise conditions than heretofore possible.
Descriptive Note:
Technical Report
Pages:
0083
Distribution Statement:
Approved For Public Release;
Contract Number:
AF 19(604)-406l
File Size:
3.01MB
