File list (Check if you may need any files):
SIGNAL\BARTLETT.P
......\BESSELAP.P
......\BESSELF.P
......\BILINEAR.P
......\BLACKMAN.P
......\BOXCAR.P
......\BSCOST.P
......\BUTTAP.P
......\BUTTER.P
......\BUTTORD.P
......\CCEPS.P
......\CHEB1AP.P
......\CHEB1ORD.P
......\CHEB2AP.P
......\CHEB2ORD.P
......\CHEBWIN.C
......\CHEBWIN.DLL
......\CHEBWIN.P
......\CHEBWINX.C
......\CHEBWINX.DLL
......\CHEBY1.P
......\CHEBY2.P
......\CHIRP.P
......\COHERE.P
......\CONVMTX.P
......\CREMEZ.P
......\CSD.P
......\CZT.P
......\CZTDEMO.P
......\Contents.p
......\DCT.P
......\DCTOLD.P
......\DECIMATE.P
......\DEMOD.P
......\DEMOS.P
......\DETREND.P
......\DFTMTX.P
......\DIRIC.P
......\DPSS.P
......\DPSSDIR.P
......\DPSSLOAD.P
......\DPSSSAVE.P
......\ELLIP.P
......\ELLIPAP.P
......\ELLIPORD.P
......\FDBUTTER.P
......\FDCHEBY1.P
......\FDCHEBY2.P
......\FDELLIP.P
......\FDFIRLS.P
......\FDKAISER.P
......\FDREMEZ.P
......\FDUTIL.P
......\FFTFILT.P
......\FILTDEM.P
......\FILTDEM2.P
......\FILTDEMO.P
......\FILTDES.P
......\FILTFILT.P
......\FILTIC.P
......\FILTVIEW.P
......\FIR1.P
......\FIR2.P
......\FIRCLS.P
......\FIRCLS1.P
......\FIRLS.P
......\FIRRCOS.P
......\FREQS.P
......\FREQZ.P
......\GAUSPULS.P
......\GRPDELAY.P
......\HAMMING.P
......\HANNING.P
......\HILBERT.P
......\ICCEPS.P
......\IDCT.P
......\IDCTOLD.P
......\IMPINVAR.P
......\IMPZ.P
......\INTERP.P
......\INTFILT.P
......\INVFREQS.P
......\INVFREQZ.P
......\KAISER.P
......\KRATIO.P
......\LATC2TF.P
......\LATCFILT.C
......\LATCFILT.DLL
......\LATCFILT.P
......\LEVINSON.P
......\LP2BP.P
......\LP2BS.P
......\LP2HP.P
......\LP2LP.P
......\LPC.P
......\MAXFLAT.P
......\MEDFILT1.P
......\MODDEMO.P
......\MODULATE.P
......\MTLB.MAT