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| − | + | <pre> | |
| − | + | %Daniel Barjum | |
| − | + | %ECE 301 HW 1.1 | |
| − | + | %HAIL PURDUE (FIGHT SONG) | |
| − | + | clear | |
| + | clc | ||
| − | + | %NOTES AND THEIR FREQUENCIES IN HERTZ | |
| − | + | ||
| − | + | ||
| − | + | ||
| − | + | ||
| − | + | ||
| − | + | ||
| − | + | ||
| − | + | Eb = 311.13; | |
| + | F = 349.23; | ||
| + | G = 392.00; | ||
| + | Ab = 415.30; | ||
| + | Bb = 466.16; | ||
| + | B = 493.88; | ||
| + | C5 = 523.25; | ||
| + | Db5 = 554.37; | ||
| − | + | dt = 0.00005; %change in time | |
| − | + | ||
| − | + | ||
| − | + | %NOTE ORDER AND THEIR TIMES | |
| − | + | sng = [Eb, F, G, Ab, Bb, C5, C5, Db5, Db5, Db5, Ab, Bb, B, C5]; | |
| + | lngth = [1/2, 1/4, 1/4, 5/8, 1/8, 1/4, 1/4, 1/4, 1/8, 1/8, 1/4, 1/8, 1/8, 3/4]; | ||
| − | + | %TO PLAY AT NORMAL SPEED | |
| − | + | ||
| − | + | lcv = 1; | |
| − | + | t = 0:dt:lngth(lcv); | |
| + | |||
| + | while lcv <= 14 | ||
| + | y = sin(2 * pi * sng(lcv) * t); | ||
| + | sound(y, 1/dt); | ||
| + | lcv = lcv + 1; | ||
| + | if lcv < 15 | ||
t = 0:dt:lngth(lcv); | t = 0:dt:lngth(lcv); | ||
end | end | ||
| + | end | ||
| + | |||
| + | %TO PLAY AT 2x SPEED | ||
| + | |||
| + | lcv = 1; | ||
| + | lngth = lngth / 2; %DIVIDE LENGTH OF TIME BY 2 | ||
| + | t = 0:dt:lngth(lcv); | ||
| + | |||
| + | while lcv <= 14 | ||
| + | y = sin(2 * pi * sng(lcv) * t); | ||
| + | sound(y, 1/dt); | ||
| + | lcv = lcv + 1; | ||
| + | if lcv < 15 | ||
| + | t = 0:dt:lngth(lcv); | ||
| + | end | ||
| + | end | ||
| + | |||
| + | %TO RESCALE THE SONG FROM y(t) = x(2t) | ||
| + | |||
| + | sng = sng * 2 %DOUBLE THE FREQUENCY | ||
| + | lcv = 1; | ||
| + | t = 0:dt:lngth(lcv); | ||
| + | |||
| + | while lcv <= 14 | ||
| + | y = sin(2 * pi * sng(lcv) * t); | ||
| + | sound(y, 1/dt); | ||
| + | lcv = lcv + 1; | ||
| + | if lcv < 15 | ||
| + | t = 0:dt:lngth(lcv); | ||
| + | end | ||
| + | end | ||
| + | |||
| + | </pre> | ||
| + | |||
| + | == SOUND FILES == | ||
| + | |||
| + | [[Media:hail_purdue1_ECE301Fall2008mboutin.wav]] | ||
| + | |||
| + | [[Media:hail_purdue2_ECE301Fall2008mboutin.wav]] | ||
| − | + | [[Media:hail_purdue3_ECE301Fall2008mboutin.wav]] | |
Latest revision as of 15:07, 5 September 2008
%Daniel Barjum
%ECE 301 HW 1.1
%HAIL PURDUE (FIGHT SONG)
clear
clc
%NOTES AND THEIR FREQUENCIES IN HERTZ
Eb = 311.13;
F = 349.23;
G = 392.00;
Ab = 415.30;
Bb = 466.16;
B = 493.88;
C5 = 523.25;
Db5 = 554.37;
dt = 0.00005; %change in time
%NOTE ORDER AND THEIR TIMES
sng = [Eb, F, G, Ab, Bb, C5, C5, Db5, Db5, Db5, Ab, Bb, B, C5];
lngth = [1/2, 1/4, 1/4, 5/8, 1/8, 1/4, 1/4, 1/4, 1/8, 1/8, 1/4, 1/8, 1/8, 3/4];
%TO PLAY AT NORMAL SPEED
lcv = 1;
t = 0:dt:lngth(lcv);
while lcv <= 14
y = sin(2 * pi * sng(lcv) * t);
sound(y, 1/dt);
lcv = lcv + 1;
if lcv < 15
t = 0:dt:lngth(lcv);
end
end
%TO PLAY AT 2x SPEED
lcv = 1;
lngth = lngth / 2; %DIVIDE LENGTH OF TIME BY 2
t = 0:dt:lngth(lcv);
while lcv <= 14
y = sin(2 * pi * sng(lcv) * t);
sound(y, 1/dt);
lcv = lcv + 1;
if lcv < 15
t = 0:dt:lngth(lcv);
end
end
%TO RESCALE THE SONG FROM y(t) = x(2t)
sng = sng * 2 %DOUBLE THE FREQUENCY
lcv = 1;
t = 0:dt:lngth(lcv);
while lcv <= 14
y = sin(2 * pi * sng(lcv) * t);
sound(y, 1/dt);
lcv = lcv + 1;
if lcv < 15
t = 0:dt:lngth(lcv);
end
end
SOUND FILES
Media:hail_purdue1_ECE301Fall2008mboutin.wav
