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Speech scrambling employing adaptive rate sampling

Darnell, M. and He, W. and Honary, Bahram (1991) Speech scrambling employing adaptive rate sampling. Electronics Letters, 27 (12). pp. 1076-1078. ISSN 0013-5194

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Abstract

A new speech scrambling technique is described. The speech is spectrally scrambled at the transmitter to produce a defined multiple bandpass structure. The reconstruction ‘key’ comprises a knowledge of the spectral frequency bands of the scrambled elements together with a unique sampling rate which will allow correct recombination of these elements. To prevent unauthorised reconstruction, the bandpass structure and sampling rate can be changed irregularly according to an appropriate key sequence.

Item Type: Article
Journal or Publication Title: Electronics Letters
Uncontrolled Keywords: speech analysis and processing ; signal processing
Subjects:
Departments: Faculty of Science and Technology > School of Computing & Communications
ID Code: 60796
Deposited By: ep_importer_pure
Deposited On: 19 Dec 2012 12:01
Refereed?: Yes
Published?: Published
Last Modified: 30 Aug 2017 13:56
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/60796

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