Accession Number : ADA332983

Title :   UNIX Speech Processing Development

Descriptive Note : Final rept. Sep 94-Aug 95

Corporate Author : ATLANTIC COAST TECHNOLOGIES INC SILVER SPRING MD

Personal Author(s) : Sabrin, Howard

PDF Url : ADA332983

Report Date : OCT 1997

Pagination or Media Count : 65

Abstract : The purpose of the program was threefold: First, develop a Speech Enhancement Unit (SEU) workstation that would run ANSI Standard C versions of the SEU algorithms on a UNIX platform using a user-friendly Graphical User Interface. Second, test the algorithms and quantify their performance, finding, wherever possible, unpredicted aspects of performance. Compare the latest versions of the algorithms with earlier versions. Third, develop, in Matlab, Automatic Gain Control (AGC) algorithms to ensure dynamic range preservation and prevent clipping, at the back end to improve listening levels for the user, and as a spectral tilt compensation mechanism.

Descriptors :   *SIGNAL PROCESSING, *SPEECH RECOGNITION, *COMPUTER PROGRAM VERIFICATION, ALGORITHMS, OPTIMIZATION, SIGNAL TO NOISE RATIO, OPERATING SYSTEMS(COMPUTERS), ACOUSTIC ATTENUATION, AUTOMATIC GAIN CONTROL, C PROGRAMMING LANGUAGE, GRAPHICAL USER INTERFACE.

Subject Categories : Computer Programming and Software
      Acoustics

Distribution Statement : APPROVED FOR PUBLIC RELEASE