Accession Number:

AD0780414

Title:

A Set of Tables of the Relative Speed of Sound in Various Diving Gas Mixtures.

Descriptive Note:

Medical research progress rept. no. 1,

Corporate Author:

NAVAL MEDICAL RESEARCH INST BETHESDA MD

Personal Author(s):

• Ackerman,Michael J.
• Maitland,Georgia

Report Date:

1974-03-01

Pagination or Media Count:

41.0

Abstract:

Since the frequency spectrum of a voice signal is directly dependent on the velocity of sound, studies of speech spectra include the problem of calculating the speed of sound in the gas mixture being used. The present program has developed computer-generated tables designed to provide a standard reference for reporting spectral shifts in speech due to different gas mixtures under normal diving conditions. Author

Descriptors:

• *Acoustic velocity
• *Gases
• Mixtures
• Oxygen
• Helium
• Nitrogen
• Neon
• Air
• Divers
• Tables(Data)
• Computer programs
• Speech recognition

Subject Categories:

• Acoustics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE