Difference between revisions of "Hw1 ECE301S11 Zach Bright" - Rhea

Latest revision as of 08:47, 19 January 2011

%Zach Bright

%ECE 301

clc; clear all;

% PART 1

delta = 0.00005;

for var = 1:3 %beats per minute bpm = 112;

if var ==2

   bpm=112/2;

end

% beats per second beat = bpm/60;

%Eighth note
E=0:delta:(beat/8);

%Half note
H=0:delta:(beat/2);

%Dotted Quarter note
Dq=0:delta:(beat*(3/8));

%Quarter note
Q=0:delta:(beat/4);

%G-note Freq
G=391.995;

%B-flat freq
Bf=466.164;

%C freq
C=523.251;

%D-flat freq
Df=554.365;

if var==3

G=2*G;
Bf=2*Bf;
C=2*C;
Df=2*Df;

end
%Establish all notes used in the song %in the form of (Note Letter)_(Length Letter)_note=...
G_Q_note=sin(2*pi*G*Q);
Bf_Q_note=sin(2*pi*Bf*Q);
C_Dq_note=sin(2*pi*C*Dq);
C_H_note=sin(2*pi*C*H);
Df_E_note=sin(2*pi*Df*E);

%Song at normal speed
smoke=[G_Q_note, Bf_Q_note, C_Dq_note, G_Q_note,Bf_Q_note, Df_E_note, C_H_note, G_Q_note, Bf_Q_note, C_Dq_note, Bf_Q_note, G_Q_note];

%create the normal tempo sound file
if var==1

   wavwrite(smoke,1/delta,'smoke_normal.wav');

%create the fast tempo sound file elseif var==2

   wavwrite(smoke,1/delta,'smoke_fast.wav');

%create the high pitch sound file else

   wavwrite(smoke,1/delta,'smoke_high_pitch.wav');

end

% PART 2

% a) The forward meesage from the Beatles is "Number 9"

% reverse signal [Beatles_normal, Fs]=wavread('Beatles.wav');
Beatles_reverse=flipud(Beatles_normal)
wavwrite(Beatles_reverse,Fs,'backwards_Beatles')

% b) In the past I have heard that peolpe think it is saying
% "Turn me on dead man." And because of this previous knowledge
% it sounds like this, but had I not known this, I probably would % not be able to make anything out.

smoke_normal
smoke_fast
smoke_HighPitch
BeatlesReverse

@@ Line 1: / Line 1: @@
-%Zach Bright
+%Zach Bright&nbsp;
-%ECE 301
-clc;
+%ECE 301
-clear all;
+clc; clear all;
-% PART 1
+<br>&nbsp;% PART 1
+<br> delta = 0.00005;
-delta = 0.00005;
+for var = 1:3&nbsp;%beats per minute bpm = 112;
-for var = 1:3
+if var ==2
-%beats per minute
-bpm = 112;
-if var ==2
      bpm=112/2;
-end
-% beats per second
+end
-beat = bpm/60;
+% beats per second beat = bpm/60;
-%Eighth note
+<br>&nbsp;
-E=0:delta:(beat/8);
-%Half note
+%Eighth note <br>
-H=0:delta:(beat/2);
+E=0:delta:(beat/8);&nbsp;
-%Dotted Quarter note
-Dq=0:delta:(beat*(3/8));
+%Half note <br>
-%Quarter note
+H=0:delta:(beat/2);&nbsp;
+%Dotted Quarter note <br>
+Dq=0:delta:(beat*(3/8));&nbsp;
+%Quarter note <br>
 Q=0:delta:(beat/4);
+<br>&nbsp;
+%G-note Freq <br>
+G=391.995;&nbsp;
+%B-flat freq <br>
+Bf=466.164;&nbsp;
-%G-note Freq
+%C freq <br>
-G=391.995;
+C=523.251;&nbsp;
-%B-flat freq
-Bf=466.164;
-%C freq
-C=523.251;
-%D-flat freq
-Df=554.365;
-if var==3
+%D-flat freq <br>
-    G=2*G;
+Df=554.365;
-    Bf=2*Bf;
-    C=2*C;
-    Df=2*Df;
-end
-%Establish all notes used in the song
-%in the form of (Note Letter)_(Length Letter)_note=...
-G_Q_note=sin(2*pi*G*Q);
-Bf_Q_note=sin(2*pi*Bf*Q);
-C_Dq_note=sin(2*pi*C*Dq);
-C_H_note=sin(2*pi*C*H);
-Df_E_note=sin(2*pi*Df*E);
+if var==3
-%Song at normal speed
+ G=2*G;
-smoke=[G_Q_note, Bf_Q_note, C_Dq_note, G_Q_note,Bf_Q_note, Df_E_note, C_H_note, G_Q_note, Bf_Q_note, C_Dq_note, Bf_Q_note, G_Q_note];
+ Bf=2*Bf;
+ C=2*C;
+ Df=2*Df;
+end&nbsp; <br>
+%Establish all notes used in the song&nbsp;%in the form of (Note Letter)_(Length Letter)_note=... <br>
+G_Q_note=sin(2*pi*G*Q); <br>
+Bf_Q_note=sin(2*pi*Bf*Q); <br>
+C_Dq_note=sin(2*pi*C*Dq); <br>
+C_H_note=sin(2*pi*C*H); <br>
+Df_E_note=sin(2*pi*Df*E); <br>
+<br>&nbsp;
+%Song at normal speed <br>
+smoke=[G_Q_note, Bf_Q_note, C_Dq_note, G_Q_note,Bf_Q_note, Df_E_note, C_H_note, G_Q_note, Bf_Q_note, C_Dq_note, Bf_Q_note, G_Q_note];
+<br>&nbsp;
+%create the normal tempo sound file <br>
+if var==1
-%create the normal tempo sound file
-if var==1
      wavwrite(smoke,1/delta,'smoke_normal.wav');
-%create the fast tempo sound file
-elseif var==2
+%create the fast tempo sound file
+elseif var==2
      wavwrite(smoke,1/delta,'smoke_fast.wav');
-%create the high pitch sound file
-else
+%create the high pitch sound file else
      wavwrite(smoke,1/delta,'smoke_high_pitch.wav');
-end
 end
-% PART 2
-% a) The forward meesage from the Beatles is "Number 9"
+end
+% PART 2
+% a) The forward meesage from the Beatles is "Number 9"
 % reverse signal
-[Beatles_normal, Fs]=wavread('Beatles.wav');
+[Beatles_normal, Fs]=wavread('Beatles.wav'); <br>
-Beatles_reverse=flipud(Beatles_normal);
+Beatles_reverse=flipud(Beatles_normal)<br>wavwrite(Beatles_reverse,Fs,'backwards_Beatles') <br>
-wavwrite(Beatles_reverse,Fs,'backwards_Beatles')
+% b) In the past I have heard that peolpe think it is saying&nbsp; <br>
+% "Turn me on dead man." And because of this previous knowledge&nbsp; <br>
+% it sounds like this, but had I not known this, I probably would&nbsp;% not be able to make anything out.
+[[Media:smoke_normal_zbright.wav|smoke_normal]]<br>
+[[Media:smoke_fast_zbright.wav|smoke_fast]]<br>
+[[Media:smoke_high_pitch_zbright.wav|smoke_HighPitch]]<br>
+[[Media:backwards_Beatles_zbright.wav|BeatlesReverse]]<br>
+<br>
-% b) In the past I have heard that peolpe  think it is saying
+<br>
-%    "Turn me on dead man." And because of this previous knowledge
-%    it sounds like this, but had I not known this, I probably would
-%    not be able to make anything out.

Difference between revisions of "Hw1 ECE301S11 Zach Bright" - Rhea

Latest revision as of 08:47, 19 January 2011

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