DocumentCode
1078053
Title
Helium voice unscrambling
Author
Copel, Michel
Author_Institution
U.S. Naval Applied Science Laboratory, Brooklyn, NY, USA
Volume
14
Issue
3
fYear
1966
fDate
9/1/1966 12:00:00 AM
Firstpage
122
Lastpage
126
Abstract
Voice communication becomes extremely difficult, if not impossible, when helium-oxygen breathing mixtures are substituted for air in deep-sea diving to overcome physiological problems. The effects of helium and pressure on speech intelligibility are discussed. With the helium voice unscrambler described, effective speech conversation was conducted with various helium-oxygen mixtures at depths to 300 feet. The unscrambler is useful even when high ambient acoustic noise is present, as in "hard-hat" diver applications.
Keywords
Acoustic noise; Frequency; Helium; Human voice; Hydrogen; Oceans; Psychology; Sea level; Space exploration; Speech;
fLanguage
English
Journal_Title
Audio and Electroacoustics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9278
Type
jour
DOI
10.1109/TAU.1966.1161862
Filename
1161862
Link To Document