2010 ˘ˇˆ˙˝˛ - kthrlab · 2010-09-07 · 7 54”• Ü‘fÛ˘ˇˆ]˘Ý˝ y t Þß a nÞn4 gmr...

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Page 1: 2010 ˘ˇˆ˙˝˛ - kthrlab · 2010-09-07 · 7 54”• Ü‘fÛ˘ˇˆ]˘Ý˝ y t Þß A NÞn4 gmR 1/f f = Þ´ÜNà”ÜR + NÞn4ámR y(t) = A sin(2 f t) Þß» Þß»† 54 gm

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Page 2: 2010 ˘ˇˆ˙˝˛ - kthrlab · 2010-09-07 · 7 54”• Ü‘fÛ˘ˇˆ]˘Ý˝ y t Þß A NÞn4 gmR 1/f f = Þ´ÜNà”ÜR + NÞn4ámR y(t) = A sin(2 f t) Þß» Þß»† 54 gm

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Page 3: 2010 ˘ˇˆ˙˝˛ - kthrlab · 2010-09-07 · 7 54”• Ü‘fÛ˘ˇˆ]˘Ý˝ y t Þß A NÞn4 gmR 1/f f = Þ´ÜNà”ÜR + NÞn4ámR y(t) = A sin(2 f t) Þß» Þß»† 54 gm

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Page 4: 2010 ˘ˇˆ˙˝˛ - kthrlab · 2010-09-07 · 7 54”• Ü‘fÛ˘ˇˆ]˘Ý˝ y t Þß A NÞn4 gmR 1/f f = Þ´ÜNà”ÜR + NÞn4ámR y(t) = A sin(2 f t) Þß» Þß»† 54 gm

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Page 5: 2010 ˘ˇˆ˙˝˛ - kthrlab · 2010-09-07 · 7 54”• Ü‘fÛ˘ˇˆ]˘Ý˝ y t Þß A NÞn4 gmR 1/f f = Þ´ÜNà”ÜR + NÞn4ámR y(t) = A sin(2 f t) Þß» Þß»† 54 gm

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Page 6: 2010 ˘ˇˆ˙˝˛ - kthrlab · 2010-09-07 · 7 54”• Ü‘fÛ˘ˇˆ]˘Ý˝ y t Þß A NÞn4 gmR 1/f f = Þ´ÜNà”ÜR + NÞn4ámR y(t) = A sin(2 f t) Þß» Þß»† 54 gm

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t = 0 : 1/48000 : 1;

f = 440;

a = 0.1;

y = a * sin(2 * pi * f * t);

/�Ûømn]yöj`¡¢£4ù�1ôúö0��jfg�U]=�

t = 0 : 1/48000 : 1;

t4ü1`1/48000ý�f0µ­1]f0�]=�

f = 440; à�Ü1440[Hz]0�]=�

a = 0.1; Þß1`5jþn> D D4Þß4� � 0.1 0�]=��

y = a * sin(2 * pi * f * t);

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Page 7: 2010 ˘ˇˆ˙˝˛ - kthrlab · 2010-09-07 · 7 54”• Ü‘fÛ˘ˇˆ]˘Ý˝ y t Þß A NÞn4 gmR 1/f f = Þ´ÜNà”ÜR + NÞn4ámR y(t) = A sin(2 f t) Þß» Þß»† 54 gm

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Page 8: 2010 ˘ˇˆ˙˝˛ - kthrlab · 2010-09-07 · 7 54”• Ü‘fÛ˘ˇˆ]˘Ý˝ y t Þß A NÞn4 gmR 1/f f = Þ´ÜNà”ÜR + NÞn4ámR y(t) = A sin(2 f t) Þß» Þß»† 54 gm

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f = 440;

a = 0.1;

y = a * sin(2 * pi * f * t);

wavplay(y, 48000);

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Page 9: 2010 ˘ˇˆ˙˝˛ - kthrlab · 2010-09-07 · 7 54”• Ü‘fÛ˘ˇˆ]˘Ý˝ y t Þß A NÞn4 gmR 1/f f = Þ´ÜNà”ÜR + NÞn4ámR y(t) = A sin(2 f t) Þß» Þß»† 54 gm

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f1 = 440;

f2 = 660;

a1 = 0.1;

a2 = 0.1;

y = a1 * sin(2 * pi * f1 * t) + ...

a2 * sin(2 * pi * f2 * t);

wavplay(y, 48000);

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Page 10: 2010 ˘ˇˆ˙˝˛ - kthrlab · 2010-09-07 · 7 54”• Ü‘fÛ˘ˇˆ]˘Ý˝ y t Þß A NÞn4 gmR 1/f f = Þ´ÜNà”ÜR + NÞn4ámR y(t) = A sin(2 f t) Þß» Þß»† 54 gm

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function maketone

t = 0 : 1/48000 : 1;

f1 = 440;

f2 = 880;

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Page 11: 2010 ˘ˇˆ˙˝˛ - kthrlab · 2010-09-07 · 7 54”• Ü‘fÛ˘ˇˆ]˘Ý˝ y t Þß A NÞn4 gmR 1/f f = Þ´ÜNà”ÜR + NÞn4ámR y(t) = A sin(2 f t) Þß» Þß»† 54 gm

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function maketone

t = 0 : 1/48000 : 1;

f1 = 440;

f2 = 880;

f3 = 1320;

a1 = 0.1;

a2 = 0.1;

a3 = 0.1;

y = a1 * sin(2 * pi * f1 * t) + ...

a2 * sin(2 * pi * f2 * t) + ...

a3 * sin(2 * pi * f3 * t);

wavplay(y, 48000);

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Page 12: 2010 ˘ˇˆ˙˝˛ - kthrlab · 2010-09-07 · 7 54”• Ü‘fÛ˘ˇˆ]˘Ý˝ y t Þß A NÞn4 gmR 1/f f = Þ´ÜNà”ÜR + NÞn4ámR y(t) = A sin(2 f t) Þß» Þß»† 54 gm

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Page 13: 2010 ˘ˇˆ˙˝˛ - kthrlab · 2010-09-07 · 7 54”• Ü‘fÛ˘ˇˆ]˘Ý˝ y t Þß A NÞn4 gmR 1/f f = Þ´ÜNà”ÜR + NÞn4ámR y(t) = A sin(2 f t) Þß» Þß»† 54 gm

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function mysynth

global sliders

fig = figure

sliders = [ makeslider(20, 20, 's1')

makeslider(40, 20, 's2')

makeslider(60, 20, 's3')

makeslider(80, 20, 's4')

makeslider(100, 20, 's5') ]

buttons = [ makebutton('Do', 20, 180, '262')

makebutton('Do#', 50, 140, '277')

makebutton('Re', 80, 180, '294')

makebutton('Re#', 110, 140, '311')

makebutton('Mi', 140, 180, '330')

makebutton('Fa', 200, 180, '349')

makebutton('Fa#', 230, 140, '370')

makebutton('So', 260, 180, '392')

makebutton('So#', 290, 140, '415')

makebutton('La', 320, 180, '440')

makebutton('La#', 350, 140, '466')

makebutton('Ti', 380, 180, '494') ]

function h = makeslider(x, y, tag)

h = uicontrol('Style', 'slider', 'Position', [x, y, 10, 100], ...

'Tag', tag)

function h = makebutton(text, x, y, f)

h = uicontrol('Style', 'pushbutton', 'Position', [x, y, 50, 30], ...

'String', text, 'Callback', ['maketone2(' f ')'])

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function maketone2(f)

global sliders

fs = 48000;

t = 0 : 1/fs : 1;

a1 = 0.1 * get(sliders(1), 'Value');

a2 = 0.1 * get(sliders(2), 'Value');

a3 = 0.1 * get(sliders(3), 'Value');

a4 = 0.1 * get(sliders(4), 'Value');

a5 = 0.1 * get(sliders(5), 'Value');

y = a1 * sin(2 * pi * 1 * f * t) + ...

a2 * sin(2 * pi * 2 * f * t) + ...

a3 * sin(2 * pi * 3 * f * t) + ...

a4 * sin(2 * pi * 4 * f * t) + ...

a5 * sin(2 * pi * 5 * f * t);

wavplay(y, fs);

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