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Method and system for scrambling and descrambling audio ...
https://www.freepatentsonline.com/5058159.html#:~:text=Audio%20signals%20are%20scrambled%20by%20inverting%20the%20original%3B,the%20band%20are%20shifted%20to%20the%20lower%20end.
Time-domain scrambling of audio signals in Matlab
https://www.ee.columbia.edu/~dpwe/resources/matlab/scramble/
Thus, to shuffle a full-band audio signal: % Load some speech [d,sr] = wavread('speech.wav'); % Shuffle 25 ms windows over a 250ms radius y = shufflewins(d,round(sr*.025),round(sr*.25)); % Listen back soundsc(y,sr); Multi …
Time-domain scrambling of audio signals - File Exchange ...
https://www.mathworks.com/matlabcentral/fileexchange/29396-time-domain-scrambling-of-audio-signals
Time-domain scrambling of audio signals. These routines scramble an audio file by moving around short, overlapping windows within a local window. They can be used to create new versions of existing recordings …
Audio scrambling - Everything2.com
https://everything2.com/title/Audio+scrambling
Scrambling audio usually refers to somehow garbling a sound signal being transmitted over some insecure medium (like a phone line, a walkie-talkie, cassette tape, etc) and ungarbling the sound at the receiving end, so that the intended recepient can understand the message. Typically, audio scrambling refers to mostly analog electronic techniques; purely …
Solved Problem 2. The system shown below is used for ...
https://www.chegg.com/homework-help/questions-and-answers/problem-2-system-shown-used-scrambling-audio-signals-output-ylt-scrambled-version-input-m--q90609936
The system shown below is used for scrambling audio signals. The output ylt) is the scrambled version of the input m(t). The signal bandwidth is Bu = 15kHz and the ideal lowpass filter bandwidth is B = 15kHz. M(0) B = 15kHz N Lowpass Filter -20 B 2πB.. s(1) y(t) m(t) 0 Unscrambler m(t) -2B 2πΒ΄ B=15kHz 2 cos(21x15,000) 1. Find the spectrum of the signal s(t) and the …
Time domain scrambling of audio signals in matlab ...
http://freesourcecode.net/matlabprojects/66794/time-domain-scrambling-of-audio-signals-in-matlab
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