Frequency inverters have been used for many years for speech scrambling. Indeed, a voice signal x (n)
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Frequency inverters have been used for many years for speech scrambling. Indeed, a voice signal x (n) becomes unintelligible if we invert its spectrum as shown in figure(a) Determine how frequency inversion can be performed in the time domain.(b) Design aun-scramble.
Transcribed Image Text:
X(w) (a) Yiw) 2 (b)
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Related Book For
Digital Signal Processing
ISBN: ?978-0133737622
3rd Edition
Authors: Jonh G. Proakis, Dimitris G.Manolakis
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