(New page: == Playing a Judas Priest Song - The Code == <pre> %Zachary Curosh %ECE 301 - Homework 1.2 %9/5/2008 clear; clc; %First use the wavread command to get the data, sample rate, and bits per ...)
 
 
(3 intermediate revisions by the same user not shown)
Line 14: Line 14:
 
%Next, play the original file normally
 
%Next, play the original file normally
  
fprintf "Playing the original file."
 
 
wavplay(data,sample_rate)
 
wavplay(data,sample_rate)
  
%Then we have to reverse the song using the command fliplr
+
%Then we have to reverse the song using the command flipud
  
 
data_rev=flipud(data);
 
data_rev=flipud(data);
Line 33: Line 32:
  
 
wavwrite(data_rev,44100,'Backwards_at_RegularSpeed');
 
wavwrite(data_rev,44100,'Backwards_at_RegularSpeed');
wavwrite(data_rev,22050,'Backwards_at_0.5Speed');
+
wavwrite(data_rev,22050,'Backwards_at_slowSpeed');
 
</pre>
 
</pre>
 +
 +
 +
== Hidden Message ==
 +
From listening to the song backwards both at normal and a slowed speed, there are definitely words being sung.  However, they are extremely difficult to make out.  I believe he said something like, "I gotta go.", but I definitely might be wrong.  From hearing this I do not believe that there is a backward message in this Judas Priest song.
 +
 +
 +
== Sound Files ==
 +
[[Media:Backwards_at_RegularSpeed_ECE301Fall2008mboutin.wav]]
 +
 +
 +
[[Media:Backwards_at_slowSpeed_ECE301Fall2008mboutin.wav]]

Latest revision as of 06:55, 5 September 2008

Playing a Judas Priest Song - The Code

%Zachary Curosh
%ECE 301 - Homework 1.2
%9/5/2008
clear;
clc;

%First use the wavread command to get the data, sample rate, and bits per
%sample of the judas priest file.

[data,sample_rate,bits]=wavread('jpforward.wav');

%Next, play the original file normally

wavplay(data,sample_rate)

%Then we have to reverse the song using the command flipud

data_rev=flipud(data);

%Next we have to play the reversed song

wavplay(data_rev,sample_rate)

%Then, to play the song slower, simply multiply the sample rate by a
%fraction. Here, I will use 1/2 the rate.

wavplay(data_rev,sample_rate*0.5)

%Lastly, I will write the backwards song using the wavwrite command

wavwrite(data_rev,44100,'Backwards_at_RegularSpeed');
wavwrite(data_rev,22050,'Backwards_at_slowSpeed');


Hidden Message

From listening to the song backwards both at normal and a slowed speed, there are definitely words being sung. However, they are extremely difficult to make out. I believe he said something like, "I gotta go.", but I definitely might be wrong. From hearing this I do not believe that there is a backward message in this Judas Priest song.


Sound Files

Media:Backwards_at_RegularSpeed_ECE301Fall2008mboutin.wav


Media:Backwards_at_slowSpeed_ECE301Fall2008mboutin.wav

Alumni Liaison

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

Jeff McNeal