=====Töne=====

Die Lösung zu Rätsel 4 lautet "Nerd"

%%(matlab)
clear
clc
A = dec2bin('Nerd');

fs = 8000;

vk = 1:2000;

amp = kaiser(length(vk),20).' * .5;

f1 = 300;
f2 = 1000;

[N,M] = size(A);

x = zeros(1,8000);
for n = 1:N
	for m = 1:M
		if A(n,m)=='1' 
			f = f1;
		else 
			f = f2;
		end
		x = [x sin(2*pi*f/fs*vk) .* amp zeros(1,2000)];        
	end
	x =  [x zeros(1,8000)];
	
end
	

wavwrite(x,fs,16,'raetsel4.wav');
%%

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Siehe auch {{backlinks}}