(New page: clear all; clc; %Part 1: Smoke on the Water %%%%%%%% Normal Rate %%%%%%%% %Tempo bpm = 112; bps = 112/60; spb = 1/bps; %Sampling Rate delta = 0.00005; %Note Length H = (0:delta:2*sp...) |
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clear all; | clear all; | ||
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clc; | clc; | ||
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%Tempo | %Tempo | ||
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bpm = 112; | bpm = 112; | ||
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bps = 112/60; | bps = 112/60; | ||
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spb = 1/bps; | spb = 1/bps; | ||
%Sampling Rate | %Sampling Rate | ||
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delta = 0.00005; | delta = 0.00005; | ||
%Note Length | %Note Length | ||
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H = (0:delta:2*spb); | H = (0:delta:2*spb); | ||
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Q = (0:delta:spb); | Q = (0:delta:spb); | ||
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E = (0:delta:0.5*spb); | E = (0:delta:0.5*spb); | ||
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DQ = (0:delta:1.5*spb); | DQ = (0:delta:1.5*spb); | ||
%Notes | %Notes | ||
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G = sin(2*pi*440*(2^(-2/12))*Q); | G = sin(2*pi*440*(2^(-2/12))*Q); | ||
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Bflat = sin(2*pi*440*(2^(1/12))*Q); | Bflat = sin(2*pi*440*(2^(1/12))*Q); | ||
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Cdq = sin(2*pi*440*(2^(3/12))*DQ); | Cdq = sin(2*pi*440*(2^(3/12))*DQ); | ||
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Ch = sin(2*pi*440*(2^(3/12))*H); | Ch = sin(2*pi*440*(2^(3/12))*H); | ||
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Dflat = sin(2*pi*440*(2^(4/12))*E); | Dflat = sin(2*pi*440*(2^(4/12))*E); | ||
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Song = [G, Bflat, Cdq, G, Bflat, Dflat, Ch, G, Bflat, Cdq, Bflat, G]; | Song = [G, Bflat, Cdq, G, Bflat, Dflat, Ch, G, Bflat, Cdq, Bflat, G]; | ||
%Rocking Out! | %Rocking Out! | ||
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sound(Song, 1/delta); | sound(Song, 1/delta); | ||
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wavwrite(Song, 1/delta, 'ECE301_HW1_1_A'); | wavwrite(Song, 1/delta, 'ECE301_HW1_1_A'); | ||
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H2 = H/2; | H2 = H/2; | ||
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Q2 = Q/2; | Q2 = Q/2; | ||
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E2 = E/2; | E2 = E/2; | ||
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DQ2 = DQ/2; | DQ2 = DQ/2; | ||
%Notes | %Notes | ||
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G = sin(2*pi*440*(2^(-2/12))*Q2); | G = sin(2*pi*440*(2^(-2/12))*Q2); | ||
| + | |||
Bflat = sin(2*pi*440*(2^(1/12))*Q2); | Bflat = sin(2*pi*440*(2^(1/12))*Q2); | ||
| + | |||
Cdq = sin(2*pi*440*(2^(3/12))*DQ2); | Cdq = sin(2*pi*440*(2^(3/12))*DQ2); | ||
| + | |||
Ch = sin(2*pi*440*(2^(3/12))*H2); | Ch = sin(2*pi*440*(2^(3/12))*H2); | ||
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Dflat = sin(2*pi*440*(2^(4/12))*E2); | Dflat = sin(2*pi*440*(2^(4/12))*E2); | ||
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%Hit It! | %Hit It! | ||
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sound(Song, 2/delta); | sound(Song, 2/delta); | ||
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wavwrite(Song, 2/delta, 'ECE301_HW1_1_B'); | wavwrite(Song, 2/delta, 'ECE301_HW1_1_B'); | ||
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G = sin(2*pi*440*(2^(-2/12))*Q); | G = sin(2*pi*440*(2^(-2/12))*Q); | ||
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Bflat = sin(2*pi*440*(2^(1/12))*Q); | Bflat = sin(2*pi*440*(2^(1/12))*Q); | ||
| + | |||
Cdq = sin(2*pi*440*(2^(3/12))*DQ); | Cdq = sin(2*pi*440*(2^(3/12))*DQ); | ||
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Ch = sin(2*pi*440*(2^(3/12))*H); | Ch = sin(2*pi*440*(2^(3/12))*H); | ||
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Dflat = sin(2*pi*440*(2^(4/12))*E); | Dflat = sin(2*pi*440*(2^(4/12))*E); | ||
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%%%%%%%% !m!_(>_<)_!m! %%%%%%%% | %%%%%%%% !m!_(>_<)_!m! %%%%%%%% | ||
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sound(Song, 2/delta); | sound(Song, 2/delta); | ||
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wavwrite(Song, 2/delta, 'ECE301_HW1_1_C'); | wavwrite(Song, 2/delta, 'ECE301_HW1_1_C'); | ||
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[Song,Fs] = wavread('Beatles.wav'); | [Song,Fs] = wavread('Beatles.wav'); | ||
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sound(Song,Fs); | sound(Song,Fs); | ||
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Reverse = flipud(Song); | Reverse = flipud(Song); | ||
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sound(Reverse,Fs); | sound(Reverse,Fs); | ||
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wavwrite(Reverse,Fs,'Beatles_reverse') | wavwrite(Reverse,Fs,'Beatles_reverse') | ||
Revision as of 16:59, 17 January 2011
clear all;
clc;
%Part 1: Smoke on the Water
%%%%%%%% Normal Rate %%%%%%%%
%Tempo
bpm = 112;
bps = 112/60;
spb = 1/bps;
%Sampling Rate
delta = 0.00005;
%Note Length
H = (0:delta:2*spb);
Q = (0:delta:spb);
E = (0:delta:0.5*spb);
DQ = (0:delta:1.5*spb);
%Notes
G = sin(2*pi*440*(2^(-2/12))*Q);
Bflat = sin(2*pi*440*(2^(1/12))*Q);
Cdq = sin(2*pi*440*(2^(3/12))*DQ);
Ch = sin(2*pi*440*(2^(3/12))*H);
Dflat = sin(2*pi*440*(2^(4/12))*E);
Song = [G, Bflat, Cdq, G, Bflat, Dflat, Ch, G, Bflat, Cdq, Bflat, G];
%Rocking Out!
sound(Song, 1/delta);
wavwrite(Song, 1/delta, 'ECE301_HW1_1_A');
%%%%%%%% Faster Now! %%%%%%%%
H2 = H/2;
Q2 = Q/2;
E2 = E/2;
DQ2 = DQ/2;
%Notes
G = sin(2*pi*440*(2^(-2/12))*Q2);
Bflat = sin(2*pi*440*(2^(1/12))*Q2);
Cdq = sin(2*pi*440*(2^(3/12))*DQ2);
Ch = sin(2*pi*440*(2^(3/12))*H2);
Dflat = sin(2*pi*440*(2^(4/12))*E2);
Song = [G, Bflat, Cdq, G, Bflat, Dflat, Ch, G, Bflat, Cdq, Bflat, G];
%Hit It!
sound(Song, 2/delta);
wavwrite(Song, 2/delta, 'ECE301_HW1_1_B');
%%%%%%%% Nail those high notes! %%%%%%%%
G = sin(2*pi*440*(2^(-2/12))*Q);
Bflat = sin(2*pi*440*(2^(1/12))*Q);
Cdq = sin(2*pi*440*(2^(3/12))*DQ);
Ch = sin(2*pi*440*(2^(3/12))*H);
Dflat = sin(2*pi*440*(2^(4/12))*E);
Song = [G, Bflat, Cdq, G, Bflat, Dflat, Ch, G, Bflat, Cdq, Bflat, G];
%%%%%%%% !m!_(>_<)_!m! %%%%%%%%
sound(Song, 2/delta);
wavwrite(Song, 2/delta, 'ECE301_HW1_1_C');
% Part 2: Hidden Messages in Beatles song
%% Read in and play the original file
[Song,Fs] = wavread('Beatles.wav');
sound(Song,Fs);
%% Reverse the song, play the result, and write to file
Reverse = flipud(Song);
sound(Reverse,Fs);
wavwrite(Reverse,Fs,'Beatles_reverse')
The original file sounds like "Number 9" being said repeatedly, while the reversed file sounds to me like "Let me on, Desmond" said repeatedly
