Matlab Code

%I-Cheng Chen
%09/05/08
%ECE301 hw1.2

%Load up the wav file into Matlab
FS=44100;                                 %44100 Hz sampling rate
[Y,FS,NBITS]=wavread('jpforward.wav');

%Forward version
wavplay(Y,FS);
pause(1)

YBACK=flipud(Y); %reverse the signal

%Reversed version
wavplay(YBACK,FS);
pause(2)

%Slow speed of the song
FS_SLOW=FS/2;
wavplay(y,FS_SLOW);
pause(3)

%Fast speed of the song
FS_FAST=FS*2;;
wavplay(y,FS_FAST);


Message

The forward message is "Beyond the realm of death".
The backward message is "I took my life".

Alumni Liaison

Prof. Math. Ohio State and Associate Dean
Outstanding Alumnus Purdue Math 2008

Jeff McNeal