Research on Adaptive Delta Modulators

Abstract

In this report, the performance of the Song Mode Voice Adaptive Delta Modulator (SVADM) and the Continuously Variable Slope Delta MODULATOR (CVSD) are compared in terms of dynamic range, sampling rate and the channel errors. The use of the SVADM and the CVSD in a packet voice channel, the algorithms for digital detection of periods of silence and the performance of a packet voice channel using the SVADM and the CVSD as source encoders are presented. The parameters employed for subjective evaluation of the packet voice channel are packet size, silence detection algorithm, bit rate and packet loss rate.

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Document Details

Document Type
Technical Report
Publication Date
Dec 15, 1978
Accession Number
ADA068453

Entities

People

  • C. Ziegler
  • D. L. Schilling
  • V. R. Dhadesugoor

Organizations

  • City College of New York

Tags

Communities of Interest

  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Coding
  • Communication Systems
  • Computer Communications
  • Delta Modulation
  • Detection
  • Dynamic Range
  • Frequency
  • Frequency Response
  • Modulation
  • Multiple Access
  • Packet Loss
  • Packet Switching
  • Radio Communications
  • Radio Equipment
  • Steady State
  • Test Sets
  • Voice Communications

Readers

  • Computer Networking
  • Image Processing and Computer Vision.
  • Speech Processing/Speech Recognition.