MATLAB创建音乐《光年之外》
基于乐理和MATLAB自身sound函数，可以实现MATLAB演奏音乐，本文中以邓紫棋《光年之外》为例实现了该功能。
主函数代码为：
Fs = 44100;
y1=gen_wave2(3,0.5);%8是1的低音；15是1的高音
y2=gen_wave2(3,0.25);
y3=gen_wave2(2,0.25);
y4=gen_wave2(2,0.25);
y5=gen_wave2(1,0.25);
y6=gen_wave2(1,0.25);
y7=gen_wave2(14,0.25);
y8=gen_wave2(14,0.25);
y9=gen_wave2(1,0.25);
y10=gen_wave2(1,0.25);
y11=gen_wave2(22,0.5);
y=[y1,y2,y3,y4,y5,y6,y7,y8,y9,y10,y11];
%感受停在我发端的之间；
y1=gen_wave2(12,0.25);%12是5的低音；15是1的高音
y2=gen_wave2(12,0.25);
y3=gen_wave2(12,0.75);
y4=gen_wave2(3,0.75);
y5=gen_wave2(12,0.25);
y6=gen_wave2(12,0.25);
y7=gen_wave2(12,0.75);
y8=gen_wave2(2,0.5);
y9=gen_wave2(22,0.5);
y=[y,y1,y2,y3,y4,y5,y6,y7,y8,y9];
%如何瞬间冻结时间；
y1=gen_wave2(3,0.25);%12是5的低音；15是1的高音
y2=gen_wave2(3,0.25);
y3=gen_wave2(2,0.25);
y4=gen_wave2(2,0.25);
y5=gen_wave2(1,0.25);
y6=gen_wave2(1,0.25);
y7=gen_wave2(14,0.25);
y8=gen_wave2(14,0.25);
y9=gen_wave2(1,0.25);
y10=gen_wave2(1,0.5);
y11=gen_wave2(22,0.25);
y=[y,y1,y2,y3,y4,y5,y6,y7,y8,y9,y10,y11];
%记住望着我坚定的双眼
y1=gen_wave2(12,0.25);%12是5的低音；15是1的高音
y2=gen_wave2(12,0.25);
y3=gen_wave2(12,0.5);
y4=gen_wave2(3,0.75);
y5=gen_wave2(12,0.25);
y6=gen_wave2(12,0.25);
y7=gen_wave2(12,0.5);
y8=gen_wave2(2,0.5);
y9=gen_wave2(22,0.25);
y=[y,y1,y2,y3,y4,y5,y6,y7,y8,y9];
%也许已经没有明天
y1=gen_wave2(14,0.125);%8是1的低音；15是1的高音
y2=gen_wave2(14,0.125);
y3=gen_wave2(14,0.25);
y4=gen_wave2(1,0.125);
y5=gen_wave2(1,0.125);
y6=gen_wave2(1,0.25);
y7=gen_wave2(3,0.5);
y8=gen_wave2(22,0.5);
y=[y,y1,y2,y3,y4,y5,y6,y7,y8];
%面对浩瀚的星海；
y1=gen_wave2(14,0.125);%8是1的低音；15是1的高音
y2=gen_wave2(14,0.125);
y3=gen_wave2(14,0.125);
y4=gen_wave2(14,0.25);
y5=gen_wave2(1,0.125);
y6=gen_wave2(1,0.125);
y7=gen_wave2(1,0.25);
y8=gen_wave2(3,0.25)
y9=gen_wave2(22,0.5);
y=[y,y1,y2,y3,y4,y5,y6,y7,y8,y9];
%我们微小得像尘埃；
y1=gen_wave2(1,0.125);%8是1的低音；15是1的高音
y2=gen_wave2(2,0.125);
y3=gen_wave2(3,0.25);
y4=gen_wave2(22,0.25);
y5=gen_wave2(1,0.25);
y6=gen_wave2(3,0.25);
y7=gen_wave2(22,0.25);
y8=gen_wave2(1,0.25)
y9=gen_wave2(2,0.25);
y10=gen_wave2(22,1);
y=[y,y1,y2,y3,y4,y5,y6,y7,y8,y9,y10];
%漂浮在 一片无奈
y1=gen_wave2(14,0.25);%8是1的低音；15是1的高音
y2=gen_wave2(1,0.25);
y3=gen_wave2(1,0.25);
y4=gen_wave2(2,0.25);
y5=gen_wave2(2,0.25);
y6=gen_wave2(3,0.25);
y7=gen_wave2(3,0.375);
y8=gen_wave2(5,0.125);
y9=gen_wave2(5,0.25);
y10=gen_wave2(6,0.25);
y11=gen_wave2(6,0.5);
y12=gen_wave2(22,0.75);
y=[y,y1,y2,y3,y4,y5,y6,y7,y8,y9,y10,y11,y12];
%缘分让我们相遇乱世以外
y1=gen_wave2(1,0.25);%8是1的低音；15是1的高音
y2=gen_wave2(2,0.25);
y3=gen_wave2(2,0.25);
y4=gen_wave2(3,0.25);
y5=gen_wave2(3,0.25);
y6=gen_wave2(5,0.25);
y7=gen_wave2(5,0.375);
y8=gen_wave2(1,0.125);
y9=gen_wave2(3,0.25);
y10=gen_wave2(2,0.25);
y11=gen_wave2(2,0.5);
y12=gen_wave2(22,0.75);
y=[y,y1,y2,y3,y4,y5,y6,y7,y8,y9,y10,y11,y12];
%命运却要我们危难中相爱；
y1=gen_wave2(14,0.25);%8是1的低音；15是1的高音
y2=gen_wave2(1,0.25);
y3=gen_wave2(1,0.25);
y4=gen_wave2(2,0.25);
y5=gen_wave2(2,0.25);
y6=gen_wave2(3,0.25);
y7=gen_wave2(3,0.375);
y8=gen_wave2(5,0.125);
y9=gen_wave2(5,0.25);
y10=gen_wave2(6,0.25);
y11=gen_wave2(6,0.5);
y12=gen_wave2(22,0.75);
y=[y,y1,y2,y3,y4,y5,y6,y7,y8,y9,y10,y11,y12];
%也许未来遥远在光年之外
y1=gen_wave2(1,0.25);%8是1的低音；15是1的高音
y2=gen_wave2(2,0.25);
y3=gen_wave2(2,0.25);
y4=gen_wave2(3,0.25);
y5=gen_wave2(3,0.25);
y6=gen_wave2(5,0.25);
y7=gen_wave2(5,0.375);
y8=gen_wave2(1,0.125);
y9=gen_wave2(3,0.25);
y10=gen_wave2(2,0.25);
y11=gen_wave2(2,0.25);
%y12=gen_wave2(22,0.75);
y=[y,y1,y2,y3,y4,y5,y6,y7,y8,y9,y10,y11];
%我愿守候未知里为你等待
y1=gen_wave2(4,0.25);%8是1的低音；15是1的高音
y2=gen_wave2(3,0.25);
y3=gen_wave2(2,0.25);
y4=gen_wave2(1,0.25);
y5=gen_wave2(1,0.125);
y6=gen_wave2(5,0.125);
y7=gen_wave2(5,0.25);
y8=gen_wave2(5,0.25);
y9=gen_wave2(5,0.25);
y10=gen_wave2(1,0.375);
y11=gen_wave2(1,0.25);
y12=gen_wave2(13,0.25);
y13=gen_wave2(22,0.75);
y=[y,y1,y2,y3,y4,y5,y6,y7,y8,y9,y10,y11,y12,y13];
%我没想到为了你我能疯狂到
y1=gen_wave2(4,0.25);%8是1的低音；15是1的高音
y2=gen_wave2(3,0.25);
y3=gen_wave2(2,0.25);
y4=gen_wave2(1,0.25);
y5=gen_wave2(1,0.125);
y6=gen_wave2(5,0.125);
y7=gen_wave2(5,0.25);
y8=gen_wave2(5,0.25);
y9=gen_wave2(5,0.25);
y10=gen_wave2(1,0.375);
y11=gen_wave2(1,0.25);
y12=gen_wave2(14,0.25);
y13=gen_wave2(22,0.75);
y=[y,y1,y2,y3,y4,y5,y6,y7,y8,y9,y10,y11,y12,y13];
%山崩海啸没有你根本不想逃
y1=gen_wave2(4,0.25);%8是1的低音；15是1的高音
y2=gen_wave2(3,0.25);
y3=gen_wave2(2,0.25);
y4=gen_wave2(1,0.25);%此处6应该不准，仍写为1
y5=gen_wave2(1,0.125);
y6=gen_wave2(5,0.125);
y7=gen_wave2(5,0.25);
y8=gen_wave2(5,0.25);
y9=gen_wave2(5,0.25);
y10=gen_wave2(1,0.375);
y11=gen_wave2(1,0.25);
y12=gen_wave2(13,0.25);
y13=gen_wave2(22,0.75);
y=[y,y1,y2,y3,y4,y5,y6,y7,y8,y9,y10,y11,y12,y13];
%我的大脑为了你已经疯狂到
y1=gen_wave2(4,0.25);%8是1的低音；15是1的高音
y2=gen_wave2(3,0.25);
y3=gen_wave2(2,0.25);
y4=gen_wave2(1,0.25);%
y5=gen_wave2(1,0.125);
y6=gen_wave2(5,0.125);
y7=gen_wave2(5,0.25);
y8=gen_wave2(5,0.25);
y9=gen_wave2(5,0.25);
y10=gen_wave2(1,0.375);
y11=gen_wave2(1,0.25);
y12=gen_wave2(14,0.25);
y13=gen_wave2(22,1.25);
y=[y,y1,y2,y3,y4,y5,y6,y7,y8,y9,y10,y11,y12,y13];
%脉搏心跳没有你根本不重要
y1=gen_wave2(14,0.5);%8是1的低音；15是1的高音
y2=gen_wave2(13,0.25);
y3=gen_wave2(1,0.25);
y4=gen_wave2(14,0.5);%
y5=gen_wave2(12,0.5);
y6=gen_wave2(14,0.5);
y7=gen_wave2(22,0.5);
y8=gen_wave2(1,0.25);
y9=gen_wave2(14,0.25);
y10=gen_wave2(12,0.5);
y11=gen_wave2(9,0.5);
y12=gen_wave2(12,0.5);
y13=gen_wave2(10,0.25);
y14=gen_wave2(22,1);
y=[y,y1,y2,y3,y4,y5,y6,y7,y8,y9,y10,y11,y12,y13,y14];
%也许航道以外是醒不来的梦；
y1=gen_wave2(1,0.25);%8是1的低音；15是1的高音
y2=gen_wave2(14,0.5);
y3=gen_wave2(12,0.5);
y4=gen_wave2(2,0.25);%
y5=gen_wave2(22,0.5);
y6=gen_wave2(1,0.25);
y7=gen_wave2(1,0.5);
y8=gen_wave2(14,0.5);
y9=gen_wave2(14,0.5);
y10=gen_wave2(1,0.5);
y11=gen_wave2(2,0.25);
y12=gen_wave2(22,0.5);
y=[y,y1,y2,y3,y4,y5,y6,y7,y8,y9,y10,y11,y12];
%乱世以外，是纯粹的相拥
y1=gen_wave2(4,0.25);%8是1的低音；15是1的高音
y2=gen_wave2(3,0.25);
y3=gen_wave2(2,0.25);
y4=gen_wave2(1,0.25);
y5=gen_wave2(1,0.125);
y6=gen_wave2(5,0.125);
y7=gen_wave2(5,0.25);
y8=gen_wave2(5,0.25);
y9=gen_wave2(5,0.25);
y10=gen_wave2(1,0.375);
y11=gen_wave2(1,0.25);
y12=gen_wave2(13,0.25);
y13=gen_wave2(22,0.75);
y=[y,y1,y2,y3,y4,y5,y6,y7,y8,y9,y10,y11,y12,y13];
%我没想到为了你我能疯狂到
y1=gen_wave2(4,0.25);%8是1的低音；15是1的高音
y2=gen_wave2(3,0.25);
y3=gen_wave2(2,0.25);
y4=gen_wave2(1,0.25);
y5=gen_wave2(1,0.125);
y6=gen_wave2(5,0.125);
y7=gen_wave2(5,0.25);
y8=gen_wave2(5,0.25);
y9=gen_wave2(5,0.25);
y10=gen_wave2(1,0.375);
y11=gen_wave2(1,0.25);
y12=gen_wave2(14,0.25);
y13=gen_wave2(22,0.75);
y=[y,y1,y2,y3,y4,y5,y6,y7,y8,y9,y10,y11,y12,y13];
%山崩海啸没有你根本不想逃
y1=gen_wave2(4,0.25);%8是1的低音；15是1的高音
y2=gen_wave2(3,0.25);
y3=gen_wave2(2,0.25);
y4=gen_wave2(1,0.25);%此处6应该不准，仍写为1
y5=gen_wave2(1,0.125);
y6=gen_wave2(5,0.125);
y7=gen_wave2(5,0.25);
y8=gen_wave2(5,0.25);
y9=gen_wave2(5,0.25);
y10=gen_wave2(1,0.375);
y11=gen_wave2(1,0.25);
y12=gen_wave2(13,0.25);
y13=gen_wave2(22,0.75);
y=[y,y1,y2,y3,y4,y5,y6,y7,y8,y9,y10,y11,y12,y13];
%我的大脑为了你已经疯狂到
y1=gen_wave2(4,0.25);%8是1的低音；15是1的高音
y2=gen_wave2(3,0.25);
y3=gen_wave2(2,0.25);
y4=gen_wave2(1,0.25);%
y5=gen_wave2(1,0.125);
y6=gen_wave2(5,0.125);
y7=gen_wave2(5,0.25);
y8=gen_wave2(5,0.25);
y9=gen_wave2(5,0.25);
y10=gen_wave2(1,0.375);
y11=gen_wave2(1,0.25);
y12=gen_wave2(14,0.25);
y13=gen_wave2(22,1.25);
y=[y,y1,y2,y3,y4,y5,y6,y7,y8,y9,y10,y11,y12,y13];
%脉搏心跳没有你根本不重要
y1=gen_wave2(4,0.25);%8是1的低音；15是1的高音
y2=gen_wave2(3,0.25);
y3=gen_wave2(2,0.25);
y4=gen_wave2(1,0.25);%
y5=gen_wave2(22,0.125);
y=[y,y1,y2,y3,y4,y5];
%我没想到
sound(y,Fs);
用到的函数代码为：
function y = gen_wave2( tone, rythm )
%Fs = 8192;
Fs = 44100;
%freqs = [ 262, 294,330, 349, 392, 440, 494, 131, 147, 165, 175, 196, 220, 247, 523,587,659,698,784,880,988,0,3520];
freqs=[262, 294,330, 349, 392, 440, 494, 131,147,165,175,196,220,247,523, 587, 659, 698, 783, 880, 988,0,3520]
x = linspace(0, 2 * pi * rythm, floor(Fs * rythm));
y = sin(freqs(tone) * x) .*(1- x/(rythm * 2 *pi));
end
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