function noise = fortune_favors_the_fontaine(Fs, duration)
	% make some noise
	output = "";
	while strlength(output) < Fs*duration
		[ret dirty_snippet] = unix('fortune');
		% clean
		snippet = regexprep(dirty_snippet, '[^A-Za-z]+', '');
		output = strcat(output, snippet);
	end
	noise = normalize(letters2numbers(convertStringsToChars(output)));
end