Reduction of Quantization Noise in PCM Speech Coding.

Abstract

A new technique to reduce the effect of quantization noise in PCM speech coding is proposed. The procedure consists of using dither noise to ensure that the quantization errors can be modelled as additive signal independent noise and then reducing this noise through the use of a noise reduction system. The procedure is illustrated with examples. (Author)

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Document Details

Document Type
Technical Report
Publication Date
May 31, 1979
Accession Number
ADA072203

Entities

People

  • Alan V. Oppenheim
  • Jae S. Lim

Organizations

  • Massachusetts Institute of Technology

Tags

DTIC Thesaurus Topics

  • Abstracts
  • Additives (Chemicals)
  • Air Force
  • Background Noise
  • Delta Modulation
  • Image Processing
  • Modulation
  • Noise
  • Noise Reduction
  • Nonuniform
  • Preprocessing
  • Probability
  • Probability Density Functions
  • Speech Compression
  • Waveforms
  • White Noise

Fields of Study

  • Engineering

Readers

  • Control Systems Engineering.
  • Logistics and Supply Chain Management.
  • Speech Processing/Speech Recognition.