(New page: Matlab Code: %ECE 301 %Homework 1 %Josh O'Meara %%%% PART 1 %%%%% %ORIGINAL% BPM = 112; %beats per minute BPS = 112/60; %beats per second delta = 0.00005; H = [0:delta:(1/BPS)*2]; %ha...)
 
 
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Matlab Code:
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Matlab Code:  
  
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%ECE 301
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<br>
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%Homework 1
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%Josh O'Meara
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%ECE 301<br>%Homework 1<br>%Josh O'Meara
  
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%%%% PART 1 %%%%%
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<br>
  
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%ORIGINAL%
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<br>%%%% PART 1&nbsp;%%%%%
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BPM = 112; %beats per minute
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BPS = 112/60; %beats per second
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delta = 0.00005;
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H = [0:delta:(1/BPS)*2]; %half note
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Q = [0:delta:(1/BPS)]; %quarter note
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E = [0:delta:(1/BPS)/2]; %eigth note
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DQ = [0:delta:(1/BPS)*3/2]; %dotted quarter note
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%The following notes are needed to play Smoke on the Water
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%ORIGINAL%<br>BPM = 112;&nbsp;%beats per minute<br>BPS = 112/60;&nbsp;%beats per second<br>delta = 0.00005; <br>H = [0:delta:(1/BPS)*2];&nbsp;%half note<br>Q = [0:delta:(1/BPS)];&nbsp;%quarter note<br>E = [0:delta:(1/BPS)/2];&nbsp;%eigth note<br>DQ = [0:delta:(1/BPS)*3/2];&nbsp;%dotted quarter note
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Q_G = sin(2*pi*2^(-1/6)*440*Q); %quarter G
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Q_Bf = sin(2*pi*2^(1/12)*440*Q); %quarter B flat
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DQ_C = sin(2*pi*2^(1/4)*440*DQ); %dotted quarter C
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E_Df = sin(2*pi*2^(1/3)*440*E); %eigth D flat
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H_C = sin(2*pi*2^(1/4)*440*H); %half C
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smoke_original = [Q_G, Q_Bf, DQ_C, Q_G, Q_Bf, E_Df, H_C, Q_G, Q_Bf, DQ_C, Q_Bf, Q_G];
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%The following notes are needed to play Smoke on the Water<br>Q_G = sin(2*pi*2^(-1/6)*440*Q);&nbsp;%quarter G<br>Q_Bf = sin(2*pi*2^(1/12)*440*Q);&nbsp;%quarter B flat<br>DQ_C = sin(2*pi*2^(1/4)*440*DQ);&nbsp;%dotted quarter C<br>E_Df = sin(2*pi*2^(1/3)*440*E);&nbsp;%eigth D flat<br>H_C = sin(2*pi*2^(1/4)*440*H);&nbsp;%half C
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sound(smoke_original, 1/delta)
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wavwrite(smoke_original, 1/delta, 'HW1_1a.wav')
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pause(8)
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%TWICE AS FAST%
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smoke_original = [Q_G, Q_Bf, DQ_C, Q_G, Q_Bf, E_Df, H_C, Q_G, Q_Bf, DQ_C, Q_Bf, Q_G];<br>sound(smoke_original, 1/delta)<br>wavwrite(smoke_original, 1/delta, 'HW1_1a.wav')<br>pause(8)  
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delta = 0.00005;
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H = [0:delta:0.5*(1/BPS)*2]; %half note
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Q = [0:delta:0.5*(1/BPS)]; %quarter note
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E = [0:delta:0.5*(1/BPS)/2]; %eigth note
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DQ = [0:delta:0.5*(1/BPS)*3/2]; %dotted quarter note
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%Notes
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%TWICE AS FAST%<br>delta = 0.00005; <br>H = [0:delta:0.5*(1/BPS)*2];&nbsp;%half note<br>Q = [0:delta:0.5*(1/BPS)];&nbsp;%quarter note<br>E = [0:delta:0.5*(1/BPS)/2];&nbsp;%eigth note<br>DQ = [0:delta:0.5*(1/BPS)*3/2];&nbsp;%dotted quarter note
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Q_G = sin(2*pi*2^(-1/6)*440*Q); %quarter G
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Q_Bf = sin(2*pi*2^(1/12)*440*Q); %quarter B flat
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DQ_C = sin(2*pi*2^(1/4)*440*DQ); %dotted quarter C
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E_Df = sin(2*pi*2^(1/3)*440*E); %eigth D flat
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H_C = sin(2*pi*2^(1/4)*440*H); %half C
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smoke_fast = [Q_G, Q_Bf, DQ_C, Q_G, Q_Bf, E_Df, H_C, Q_G, Q_Bf, DQ_C, Q_Bf, Q_G];
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%Notes<br>Q_G = sin(2*pi*2^(-1/6)*440*Q);&nbsp;%quarter G<br>Q_Bf = sin(2*pi*2^(1/12)*440*Q);&nbsp;%quarter B flat<br>DQ_C = sin(2*pi*2^(1/4)*440*DQ);&nbsp;%dotted quarter C<br>E_Df = sin(2*pi*2^(1/3)*440*E);&nbsp;%eigth D flat<br>H_C = sin(2*pi*2^(1/4)*440*H);&nbsp;%half C
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sound(smoke_fast, 1/delta)
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wavwrite(smoke_fast, 1/delta, 'HW1_1b.wav')
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pause(8)
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smoke_fast = [Q_G, Q_Bf, DQ_C, Q_G, Q_Bf, E_Df, H_C, Q_G, Q_Bf, DQ_C, Q_Bf, Q_G];<br>sound(smoke_fast, 1/delta)<br>wavwrite(smoke_fast, 1/delta, 'HW1_1b.wav')<br>pause(8)
  
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%HIGHER PITCH%
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<br>%HIGHER PITCH%<br>delta = 0.00005; <br>H = [0:delta:(1/BPS)*2];&nbsp;%half note<br>Q = [0:delta:(1/BPS)];&nbsp;%quarter note<br>E = [0:delta:(1/BPS)/2];&nbsp;%eigth note<br>DQ = [0:delta:(1/BPS)*3/2];&nbsp;%dotted quarter note  
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delta = 0.00005;  
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H = [0:delta:(1/BPS)*2]; %half note
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Q = [0:delta:(1/BPS)]; %quarter note
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E = [0:delta:(1/BPS)/2]; %eigth note
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DQ = [0:delta:(1/BPS)*3/2]; %dotted quarter note
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%Notes
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%Notes<br>Q_G = sin(2*2*pi*2^(-1/6)*440*Q);&nbsp;%quarter G<br>Q_Bf = sin(2*2*pi*2^(1/12)*440*Q);&nbsp;%quarter B flat<br>DQ_C = sin(2*2*pi*2^(1/4)*440*DQ);&nbsp;%dotted quarter C<br>E_Df = sin(2*2*pi*2^(1/3)*440*E);&nbsp;%eigth D flat<br>H_C = sin(2*2*pi*2^(1/4)*440*H);&nbsp;%half C  
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Q_G = sin(2*2*pi*2^(-1/6)*440*Q); %quarter G
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Q_Bf = sin(2*2*pi*2^(1/12)*440*Q); %quarter B flat
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DQ_C = sin(2*2*pi*2^(1/4)*440*DQ); %dotted quarter C
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E_Df = sin(2*2*pi*2^(1/3)*440*E); %eigth D flat
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H_C = sin(2*2*pi*2^(1/4)*440*H); %half C
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smoke_high = [Q_G, Q_Bf, DQ_C, Q_G, Q_Bf, E_Df, H_C, Q_G, Q_Bf, DQ_C, Q_Bf, Q_G];
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smoke_high = [Q_G, Q_Bf, DQ_C, Q_G, Q_Bf, E_Df, H_C, Q_G, Q_Bf, DQ_C, Q_Bf, Q_G];<br>sound(smoke_high, 1/delta)<br>wavwrite(smoke_high, 1/delta, 'HW1_1c.wav')<br>pause(15)  
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sound(smoke_high, 1/delta)
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wavwrite(smoke_high, 1/delta, 'HW1_1c.wav')
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pause(15)
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<br>%%%%PART 2%%%%
  
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%%%%PART 2%%%%
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[Beatles, Fs] = wavread('Beatles.wav');<br>sound(Beatles, Fs)<br>pause(8)<br>sound(flipud(Beatles), Fs)<br>wavwrite(flipud(Beatles), Fs, 'Beatles_Reverse.wav')<br>
  
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[Beatles, Fs] = wavread('Beatles.wav');
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<br>
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sound(Beatles, Fs)
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pause(8)
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sound(flipud(Beatles), Fs)
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wavwrite(flipud(Beatles), Fs, 'Beatles_Reverse.wav')
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Sound Files:
  
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[[Media:HW1_1a.wav]]
  
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Sound Files:
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[[Media:HW1_1b.wav]]
  
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[[Media:HW1_1a.wav]]
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[[Media:HW1_1c.wav]]  
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[[Media:HW1_1b.wav]]
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[[Media:HW1_1c.wav]]
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[[Media:Beatles_Reverse.wav]]  
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[[Media:Beatles_Reverse.wav]]
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<br>
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The forward repeated phrase is "Number 9"
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Backwards it sounds like "Turn me on dead man"

Latest revision as of 12:31, 18 January 2011

Matlab Code:


%ECE 301
%Homework 1
%Josh O'Meara



%%%% PART 1 %%%%%

%ORIGINAL%
BPM = 112; %beats per minute
BPS = 112/60; %beats per second
delta = 0.00005;
H = [0:delta:(1/BPS)*2]; %half note
Q = [0:delta:(1/BPS)]; %quarter note
E = [0:delta:(1/BPS)/2]; %eigth note
DQ = [0:delta:(1/BPS)*3/2]; %dotted quarter note

%The following notes are needed to play Smoke on the Water
Q_G = sin(2*pi*2^(-1/6)*440*Q); %quarter G
Q_Bf = sin(2*pi*2^(1/12)*440*Q); %quarter B flat
DQ_C = sin(2*pi*2^(1/4)*440*DQ); %dotted quarter C
E_Df = sin(2*pi*2^(1/3)*440*E); %eigth D flat
H_C = sin(2*pi*2^(1/4)*440*H); %half C

smoke_original = [Q_G, Q_Bf, DQ_C, Q_G, Q_Bf, E_Df, H_C, Q_G, Q_Bf, DQ_C, Q_Bf, Q_G];
sound(smoke_original, 1/delta)
wavwrite(smoke_original, 1/delta, 'HW1_1a.wav')
pause(8)

%TWICE AS FAST%
delta = 0.00005;
H = [0:delta:0.5*(1/BPS)*2]; %half note
Q = [0:delta:0.5*(1/BPS)]; %quarter note
E = [0:delta:0.5*(1/BPS)/2]; %eigth note
DQ = [0:delta:0.5*(1/BPS)*3/2]; %dotted quarter note

%Notes
Q_G = sin(2*pi*2^(-1/6)*440*Q); %quarter G
Q_Bf = sin(2*pi*2^(1/12)*440*Q); %quarter B flat
DQ_C = sin(2*pi*2^(1/4)*440*DQ); %dotted quarter C
E_Df = sin(2*pi*2^(1/3)*440*E); %eigth D flat
H_C = sin(2*pi*2^(1/4)*440*H); %half C

smoke_fast = [Q_G, Q_Bf, DQ_C, Q_G, Q_Bf, E_Df, H_C, Q_G, Q_Bf, DQ_C, Q_Bf, Q_G];
sound(smoke_fast, 1/delta)
wavwrite(smoke_fast, 1/delta, 'HW1_1b.wav')
pause(8)


%HIGHER PITCH%
delta = 0.00005;
H = [0:delta:(1/BPS)*2]; %half note
Q = [0:delta:(1/BPS)]; %quarter note
E = [0:delta:(1/BPS)/2]; %eigth note
DQ = [0:delta:(1/BPS)*3/2]; %dotted quarter note

%Notes
Q_G = sin(2*2*pi*2^(-1/6)*440*Q); %quarter G
Q_Bf = sin(2*2*pi*2^(1/12)*440*Q); %quarter B flat
DQ_C = sin(2*2*pi*2^(1/4)*440*DQ); %dotted quarter C
E_Df = sin(2*2*pi*2^(1/3)*440*E); %eigth D flat
H_C = sin(2*2*pi*2^(1/4)*440*H); %half C

smoke_high = [Q_G, Q_Bf, DQ_C, Q_G, Q_Bf, E_Df, H_C, Q_G, Q_Bf, DQ_C, Q_Bf, Q_G];
sound(smoke_high, 1/delta)
wavwrite(smoke_high, 1/delta, 'HW1_1c.wav')
pause(15)


%%%%PART 2%%%%

[Beatles, Fs] = wavread('Beatles.wav');
sound(Beatles, Fs)
pause(8)
sound(flipud(Beatles), Fs)
wavwrite(flipud(Beatles), Fs, 'Beatles_Reverse.wav')


Sound Files:

Media:HW1_1a.wav

Media:HW1_1b.wav

Media:HW1_1c.wav

Media:Beatles_Reverse.wav


The forward repeated phrase is "Number 9"

Backwards it sounds like "Turn me on dead man"

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