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:
Journal Article
Journal or Publication Title:
Electronics Letters
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/2200/2208
Subjects:
?? SPEECH ANALYSIS AND PROCESSINGSIGNAL PROCESSINGELECTRICAL AND ELECTRONIC ENGINEERING ??
ID Code:
60796
Deposited By:
Deposited On:
19 Dec 2012 12:01
Refereed?:
Yes
Published?:
Published
Last Modified:
22 Sep 2023 00:18