Accession Number:

ADA164113

Title:

Automated Recognition of Helium Speech: Phase I Investigation of Microprocessor Based Analysis/Synthesis System.

Descriptive Note:

Final rept.,

Corporate Author:

ELECTRONIC DESIGN ASSOCIATES COSTA MESA CA

Personal Author(s):

Report Date:

1986-01-31

Pagination or Media Count:

33.0

Abstract:

This is the Final Report of Electronic Design Associates on its Phase I SBIR project. The purpose of this project is to develop a method for correcting helium speech, as experienced in diver-surface communication. The goal of the Phase I study was to design, prototype, and evaluate a real time helium speech corrector system based upon digital signal processing techniques. The general approach was to develop hardware an IBM PC board to digitize helium speech and software a LAMBDA computer based simulation to translate the speech. As planned in the study proposal, this initial prototype may now be used to assess expected performance from a self contained real time system which uses an identical algorithm. The Final Report details the work carried out to produce the prototype system. Four major project tasks were A signal processing scheme for converting helium speech to normal sounding speech was generated The signal processing scheme was simulated on a general purpose LAMDA computer. Actual helium speech was supplied to the simulation and the converted speech was generated An IBM-PC based 14 bit data InputOutput board was designed and built. A bibliography of references on speech processing was generated.

Subject Categories:

  • Life Support Systems

Distribution Statement:

APPROVED FOR PUBLIC RELEASE