Signals can be self describing in several dimensions:	the signal dimentionality	the form of the stored data	labels for signal elements	...This information might be put in the "description" variable of the headerTo handle all data associated with f0 and formant tracking the followingsignal types must be supported:	Periodic		one-dimensional shorts			binary			ascii		n-dimensional heterogeneous vectors			ascii		variable dimension heterogeneous vectors			ascii	Aperiodic		voicing and utterance boundary markers		hand segmentation dataThe raw data files:	Speech signal (periodic binary shorts)	F0 signal	(n-dimensional heterogeneous ascii)		frame number 	(%ld) (for direct readability)		f0		(%lf)		energy		(%lf) (in reference window)		max correlation	(%lf)		k1		(%lf)		voicing		(%ld)	LPC poles	(variable dimensional heterogeneous ascii)		frame number	(%ld)		energy		(%lf)	(in preemphasized and windowed data)		k1		(%lf)	(		"		)		number of poles	(%ld)	(this many freqs. and bws. follow)		frequencies	(%lf)		bandwidths	(%lf)	Formants	(n-dimensional heterogeneous)		frame number	(%ld)		energy from f0	(%lf)	(as in f0 above)		energy from LPC	(%lf)	(as in poles above)		max correlation		k1		(%lf)	(from f0 computation)		k1		(%lf)	(from pole computation)		voicing		(%ld)	(from f0 computation)		formants	(%lf)		bandwidths	(%lf)