| Line 4: | Line 4: | ||
%ECE 301 | %ECE 301 | ||
| − | clc; | + | clc; |
| − | clear; | + | clear; |
| − | [data,f,nbits]=wavread('jpforward.wav'); | + | [data,f,nbits]=wavread('jpforward.wav'); |
| − | %original Judas Priest extract | + | %original Judas Priest extract |
| − | wavplay(data,f); | + | wavplay(data,f); |
| − | %Reverse | + | %Reverse |
| − | rdata=flipud(data); | + | rdata=flipud(data); |
| − | %Play reverse | + | %Play reverse |
| − | wavplay(rdata,f); | + | wavplay(rdata,f); |
| − | wavwrite(rdata,f,nbits,'jpreverse.wav'); | + | wavwrite(rdata,f,nbits,'jpreverse.wav'); |
| − | %Playing reverse + slow | + | %Playing reverse + slow |
| − | wavwrite(rdata,f/2,nbits,'jpreverseslow.wav'); | + | wavwrite(rdata,f/2,nbits,'jpreverseslow.wav'); |
| − | wavplay(rdata,f/2); | + | wavplay(rdata,f/2); |
Revision as of 18:36, 4 September 2008
Hidden Backward Message
Matlab File
%Naman Chopra %ECE 301
clc;
clear;
[data,f,nbits]=wavread('jpforward.wav');
%original Judas Priest extract
wavplay(data,f);
%Reverse
rdata=flipud(data);
%Play reverse
wavplay(rdata,f);
wavwrite(rdata,f,nbits,'jpreverse.wav');
%Playing reverse + slow
wavwrite(rdata,f/2,nbits,'jpreverseslow.wav');
wavplay(rdata,f/2);
