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IEEE Signal Processing LettersVolume 4, Issue 6, 1997, Pages 161-163

A new speech scrambling concept based on hadamard matrices(Article)

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  • Faculty of Technical Sciences, University of Novi Sad, 21121 Novi Sad, Serbia

Abstract

The principles of a new speech scrambling concept are presented in this paper, whereby speech components are linearly combined contrasted to their conventional permutation. A computationally and cryptographically efficient solution based on Hadamard matrices is proposed and its advantages shown. The idea is general and easily applies to all existing speech scramblers providing for both lower residual intelligibility and greater cryptanalytic efforts, maintaining the bandwidth and the speech quality.

Indexed keywords

Engineering controlled terms:BandwidthComputational methodsCryptographyMatrix algebraSpeech intelligibility
Engineering uncontrolled terms:Hadamard matricesSpeech qualitySpeech scrambling concept
Engineering main heading:Speech processing
  • ISSN: 10709908
  • CODEN: ISPLE
  • Source Type: Journal
  • Original language: English
  • DOI: 10.1109/97.586036
  • Document Type: Article
  • Publisher: Institute of Electrical and Electronics Engineers Inc.

  Šenk, V.; Faculty of Technical Sciences, University of Novi Sad, Serbia;
© Copyright 2019 Elsevier B.V., All rights reserved.

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