Accession Number:

ADA155465

Title:

Development of a Dedicated Speech Work Station.

Descriptive Note:

Master's thesis,

Corporate Author:

AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING

Personal Author(s):

Report Date:

1984-12-01

Pagination or Media Count:

266.0

Abstract:

This thesis project attempted to design and develop a dedicated speech work station which would accept one of sixteen possible analog signal inputs, digitize the input and store the resulting data in the expanded computer memory of a modified Cromeco S-100 bus microcomputer system. Once stored, the data could be relocated to magnetic floppy disk storage for graphically displayed on a CRT. As a result of the hardware and software developed under this thesis, bus microcomputer system can be configured as a dedicated stand alone speech work station. Hardware is now developed which provides an extended memory capability for storage of analog-to-digital sampled analog speech. Data storage is via a direct memory access capability. The hardware also supports providing an analog output from previously stored data samples via a digital-to-analog capability. Software is developed which controls the analog input to be sampled and the sampling rate to be used. The software also allows the sampled data to be graphically displayed 500 samples at a time on a video display screen or to be placed in or returned from more permanent storage on a magnetic disk. The detailed analysis, development, and fabrication of the hardware and software is also contained in the thesis. Additional keywords fabrication validation computer program documentation integrated circuits wiring diagrams.

Subject Categories:

  • Computer Programming and Software
  • Computer Hardware

Distribution Statement:

APPROVED FOR PUBLIC RELEASE