Speech Envelope Normalization, a Method to Improve SNR and Suppress Noise in Present and Future Radio Systems.

Abstract

Speech envelope normalization (EN) is a compression process that transforms dynamic speech waveforms into constant envelope signals which are optimum for transmission and reception using analog radio equipment. The EN process reduces dynamic range requirements, maximizes speech SNR, increases intelligibility, and suppresses noise. The Report covers EN theory and properties, EN circuit implementations, experimental evaluations, and applications analysis. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1982
Accession Number
ADA124225

Entities

People

  • James C. Springett

Tags

Communities of Interest

  • Energy and Power Technologies
  • Ground and Sea Platforms
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Amplitude Modulation
  • Bandwidth
  • Bread
  • Charge Coupled Devices
  • Communication Systems
  • Demodulation
  • Detectors
  • Frequency Bands
  • Human Factors Engineering
  • Information Theory
  • Measurement
  • Modulation
  • Modulators
  • Radio Equipment
  • Signal Processing
  • Speech Compression
  • Waveforms

Fields of Study

  • Computer science

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Speech Processing/Speech Recognition.
  • Trauma or Military Medicine