| Line 16: | Line 16: | ||
G5 = sin(2*pi*784*t1);<br /> | G5 = sin(2*pi*784*t1);<br /> | ||
| − | |||
| − | |||
B52 = sin(2*pi*494*t2);<br /> | B52 = sin(2*pi*494*t2);<br /> | ||
| − | |||
C52 = sin(2*pi*523*t2);<br /> | C52 = sin(2*pi*523*t2);<br /> | ||
| − | + | E52 = sin(2*pi*659*t2);<br /> | |
| − | + | G52 = sin(2*pi*784*t2);<br /> | |
| − | + | ||
B62 = sin(2*pi*988*t2);<br /> | B62 = sin(2*pi*988*t2);<br /> | ||
| + | C62 = sin(2*pi*1047*t2);<br /> | ||
| + | D62 = sin(2*pi*1175*t2);<br /> | ||
| + | E62 = sin(2*pi*1319*t2);<br /> | ||
F62 = sin(2*pi*1397*t2);<br /> | F62 = sin(2*pi*1397*t2);<br /> | ||
G62 = sin(2*pi*1568*t2);<br /> | G62 = sin(2*pi*1568*t2);<br /> | ||
| Line 31: | Line 30: | ||
FS6 = sin(2*pi*1479.978*t1);<br /> | FS6 = sin(2*pi*1479.978*t1);<br /> | ||
| − | + | B53 = sin(2*pi*494*t3);<br /> | |
| − | + | C53 = sin(2*pi*523*t3);<br /> | |
| − | + | E53 = sin(2*pi*659*t3);<br /> | |
G53 = sin(2*pi*784*t3);<br /> | G53 = sin(2*pi*784*t3);<br /> | ||
A63 = sin(2*pi*880*t3);<br /> | A63 = sin(2*pi*880*t3);<br /> | ||
| − | |||
| − | |||
B63 = sin(2*pi*988*t3);<br /> | B63 = sin(2*pi*988*t3);<br /> | ||
| + | C63 = sin(2*pi*1047*t3);<br /> | ||
| + | D63 = sin(2*pi*1175*t3);<br /> | ||
| + | E63 = sin(2*pi*1319*t3);<br /> | ||
F63 = sin(2*pi*1397*t3);<br /> | F63 = sin(2*pi*1397*t3);<br /> | ||
G63 = sin(2*pi*1568*t3);<br /> | G63 = sin(2*pi*1568*t3);<br /> | ||
| − | |||
| + | A54 = sin(2*pi*440*t4);<br /> | ||
| + | B54 = sin(2*pi*494*t4);<br /> | ||
G54 = sin(2*pi*784*t4);<br /> | G54 = sin(2*pi*784*t4);<br /> | ||
E54 = sin(2*pi*659*t4);<br /> | E54 = sin(2*pi*659*t4);<br /> | ||
| − | + | A64 = sin(2*pi*880*t4);<br /> | |
| − | + | ||
B64 = sin(2*pi*988*t4);<br /> | B64 = sin(2*pi*988*t4);<br /> | ||
C64 = sin(2*pi*1047*t4);<br /> | C64 = sin(2*pi*1047*t4);<br /> | ||
| + | D64 = sin(2*pi*1175*t4);<br /> | ||
| + | E64 = sin(2*pi*1319*t4);<br /> | ||
| + | F64 = sin(2*pi*1397*t4);<br /> | ||
G64 = sin(2*pi*1568*t4);<br /> | G64 = sin(2*pi*1568*t4);<br /> | ||
| − | |||
| − | |||
| − | |||
| − | |||
C55 = sin(2*pi*523*t5);<br /> | C55 = sin(2*pi*523*t5);<br /> | ||
| − | |||
E55 = sin(2*pi*659*t5);<br /> | E55 = sin(2*pi*659*t5);<br /> | ||
| + | C65 = sin(2*pi*1047*t5);<br /> | ||
C6f = sin(2*pi*1047*tf);<br /> | C6f = sin(2*pi*1047*tf);<br /> | ||
| Line 67: | Line 66: | ||
F6 = sin(2*pi*1397*t1);<br /> | F6 = sin(2*pi*1397*t1);<br /> | ||
G6 = sin(2*pi*1568*t1);<br /> | G6 = sin(2*pi*1568*t1);<br /> | ||
| + | |||
p = sin(2*pi*1*t1);<br /> | p = sin(2*pi*1*t1);<br /> | ||
Revision as of 23:32, 2 December 2018
Coding the Star Spangled Banner in MATLAB
Using the sound function in Matlab, we are able to create a song using sine waves with specific frequencies. Each note has certain frequency that corresponds to it and through sine waves and putting it into the sound function we are able to create a song. Below is an example of MATLAB code that can be used to play the star spangled banner.
delta = 1/8192;
t1 = 0:delta:1/2;
t2 = 0:delta:1;
t3 = 0:delta:1/3;
t4 = 0:delta:1/4;
t5 = 0:delta:3/4;
tf = 0:delta:2;
A5 = sin(2*pi*440*t1);
C5 = sin(2*pi*523*t1);
D5 = sin(2*pi*587*t1);
E5 = sin(2*pi*659*t1);
G5 = sin(2*pi*784*t1);
B52 = sin(2*pi*494*t2);
C52 = sin(2*pi*523*t2);
E52 = sin(2*pi*659*t2);
G52 = sin(2*pi*784*t2);
B62 = sin(2*pi*988*t2);
C62 = sin(2*pi*1047*t2);
D62 = sin(2*pi*1175*t2);
E62 = sin(2*pi*1319*t2);
F62 = sin(2*pi*1397*t2);
G62 = sin(2*pi*1568*t2);
FS = sin(2*pi*739.989*t1);
FS6 = sin(2*pi*1479.978*t1);
B53 = sin(2*pi*494*t3);
C53 = sin(2*pi*523*t3);
E53 = sin(2*pi*659*t3);
G53 = sin(2*pi*784*t3);
A63 = sin(2*pi*880*t3);
B63 = sin(2*pi*988*t3);
C63 = sin(2*pi*1047*t3);
D63 = sin(2*pi*1175*t3);
E63 = sin(2*pi*1319*t3);
F63 = sin(2*pi*1397*t3);
G63 = sin(2*pi*1568*t3);
A54 = sin(2*pi*440*t4);
B54 = sin(2*pi*494*t4);
G54 = sin(2*pi*784*t4);
E54 = sin(2*pi*659*t4);
A64 = sin(2*pi*880*t4);
B64 = sin(2*pi*988*t4);
C64 = sin(2*pi*1047*t4);
D64 = sin(2*pi*1175*t4);
E64 = sin(2*pi*1319*t4);
F64 = sin(2*pi*1397*t4);
G64 = sin(2*pi*1568*t4);
C55 = sin(2*pi*523*t5);
E55 = sin(2*pi*659*t5);
C65 = sin(2*pi*1047*t5);
C6f = sin(2*pi*1047*tf);
A6 = sin(2*pi*880*t1);
B6 = sin(2*pi*988*t1);
C6 = sin(2*pi*1047*t1);
D6 = sin(2*pi*1175*t1);
E6 = sin(2*pi*1319*t1);
F6 = sin(2*pi*1397*t1);
G6 = sin(2*pi*1568*t1);
p = sin(2*pi*1*t1);
sound([G53,E54,C52,E5,G5,C62,p,E63, ...
D64,C62,E5,FS,G52,p,G53,G53,E62, ...
D63,C6,B62,p,A63,B64,C62,C6,G5,E5, ...
C52,p,E5,G53,C52,E5,G5,C62,p,E6, ...
D63,C62,E5,FS,G52,p,G5,G53,E62,D6, ...
C6,B62,p,A6,B63,C62,C6,G5,E5,C5,p, ...
E64,E64,E62,F6,G6,G62,p,F64,E64,D62, ...
E6,F6,F62,p,F6,E62,D64,C6,B62,p,A64, ...
B64,C62,E5,FS,G52,p,G5,C6,C6,C64, ...
B64,A6,A6,A6,D6,F63,E6,D63,C62,B6, ...
p,G53,G53,C62,D63,E63,F63,G62,p,C63, ...
D63,E62,F6,D6,C6f]);
