Revision as of 14:41, 18 January 2011 by Rgieseck (Talk | contribs)

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clc;
clear all;

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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% PART 1 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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bpm = 112;
bps = bpm / 60;
spb = 1/bps;
delta = 0.00005;
t = 0:delta:3;

E = 0:delta:spb/2;
Q = 0:delta:spb;
H = 0:delta:spb*2;
DQ = 0:delta:3*spb/2;

E2 = 0:delta:spb/4;
Q2 = 0:delta:spb/2;
H2 = 0:delta:spb;
DQ2 = 0:delta:3*spb/4;

G = 391.995;
Bf = 466.164;
C = 523.251;
Df = 554.365;

smoke_on_water = [sin(2*pi*G*Q),sin(2*pi*Bf*Q),sin(2*pi*C*DQ),...
sin(2*pi*G*Q),sin(2*pi*Bf*Q),sin(2*pi*Df*E),sin(2*pi*C*H),...
sin(2*pi*G*Q),sin(2*pi*Bf*Q),sin(2*pi*C*DQ),sin(2*pi*Bf*Q),...
sin(2*pi*G*Q)];
smoke_on_water2 = [sin(2*pi*G*Q2),sin(2*pi*Bf*Q2),sin(2*pi*C*DQ2),...
sin(2*pi*G*Q2),sin(2*pi*Bf*Q2),sin(2*pi*Df*E2),sin(2*pi*C*H2),...
sin(2*pi*G*Q2),sin(2*pi*Bf*Q2),sin(2*pi*C*DQ2),sin(2*pi*Bf*Q2),...
sin(2*pi*G*Q2)];

sound(smoke_on_water,1/delta);
sound(smoke_on_water2,1/delta);
sound(smoke_on_water,2/delta);

wavwrite(smoke_on_water,1/delta,'ECEHW1_1_a');
wavwrite(smoke_on_water2,1/delta,'ECEHW1_1_b');
wavwrite(smoke_on_water,2/delta,'ECEHW1_1_c');

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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% PART 2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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[beatles, Fs] = wavread('Beatles.wav');
sound(beatles,Fs);

beatles_rev = flipud(beatles);
sound(beatles_rev,Fs);
wavwrite(beatles_rev,Fs,'ECEHW1_2_b');


Media:Rgieseck_ECE301_HW1_1_a.wav
Media:Rgieseck_ECE301_HW1_1_b.wav
Media:Rgieseck_ECE301_HW1_1_c.wav
Media:Rgieseck_ECE301_HW1_2_b.wav

The first part of the Beatles song repeats "Number 9"
The reversed part repeats what sounds like mumbled garbage to me but supposedly he is repeating "Turn me on, dead man!"

Alumni Liaison

Abstract algebra continues the conceptual developments of linear algebra, on an even grander scale.

Dr. Paul Garrett