FOF routine by Perry R. Cook
			Stanford CCRMA 1991.

Note: These are not FOF's.  They are only cosine-windowed sinusoids, which
are used for the development in class.  Real FOF's are more refined and have a 
better spectral shape.  The function used here still can provide quite a strong
vowel percept.

To use the program, just type

fof numSamples f0 f1 f2 f3 gain1 gain2 gain3 soundfile.snd

where 	numSamples 	is the total number of samples generated
		f0			is the fundamental frequency in Hz.
		f1			is the first formant frequency in Hz.
		f2			is the second formant frequency in Hz.
		f3			is the third formant frequency in Hz.
		gain1		is the peak amplitude of the first formant function (5000 is good)
		gain2 		is the peak amplitude of the second formant function
		gain3		is the peak amplitude of the third formant function
		
	the total of gain1+gain2+gain3 should not exceed 32000
	
Example script files which generate interesting sounds are:

makeFormants	which makes a series of single resonances
makeEeeAhh    	which builds the individual formants of the sounds eee and ahh
makeVowels		which makes a series of vowels