SINGLE-CHANNEL VOICE-RESPONSE-SYSTEM PROGRAM DOCUMENTATION. VOLUME I. SYSTEM DESCRIPTION

This report documents the design and implementation of a Voice Response System (VRS) using Adaptive Differential Pulse Code Modulation (ADPCM) voice coding. Implemented on a Digital Equipment Corporation PDP-11/20,R this VRS system supports a single audio-output channel. Vocabulary size is limited to 900 words or phrases. Input to the system consists of text messages or sentences in ASCII format transmitted to the 11/20 through a 300-baud asynchronous interface. A preliminary design for a VRS for 10 channels is reported.

  • Supplemental Notes:
    • See also Volume 2, AD-A051 745.
  • Corporate Authors:

    Input Output Computer Services Incorporated

    Cambridge, MA  USA 
  • Publication Date: 1977-12

Media Info

  • Pagination: 39 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00175467
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: FAA-RD-77-177-1
  • Contract Numbers: DOT-TSC-1107-1
  • Files: NTIS
  • Created Date: May 31 2002 12:00AM