no2.m

东方红乐曲

f=8000;
F=349.23;
G=392;
Db=293.66;
C=523.25;
D=587.33;
T1=0:1/f:0.25;
T2=0:1/f:0.5;
s1=sin(2*pi*C*T2).*B(0.5,f);
s2=sin(2*pi*C*T1).*B(0.25,f);
s3=sin(2*pi*D*T1).*B(0.25,f);
s4=sin(2*pi*G*T2).*B(0.5,f);
s5=0*T2;
s6=sin(2*pi*F*T2).*B(0.5,f);
s7=sin(2*pi*F*T1).*B(0.25,f);
s8=sin(2*pi*Db*T1).*B(0.25,f);
s=[s1,s2,s3,s4,s5,s6,s7,s8,s4,s5];
sound(s);