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Amiga ACS 1997 #2
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gfft-2.03
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product-info
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1996-06-21
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.name
GFFT
.type
Sound Analysis
.short
FFT spectrum analysis of sample files
.description
Update to GFFT Version 1.12.
GFFT is an FFT-based spectrum analysis program with many features. By
operating from stored sample data files, it offers higher resolution and/or
accuracy than real-time analyzers. It accepts 8, 12, or 16-bit data in in
IFF 8SVX, AIFF, and AVR formats, or in unformatted files, and can accept
data points entered through a console in floating point.\n
GFFT can be operated from either a Workbench GUI or from a CLI in
interactive or batch modes. It has built-in help facilities for all
operating modes with a 170+ Kb help file.\n
GFFT can produce high quality spectrum plots on screen, plotter, or
printer, or save to Postscript or TeX files, or output spectral data in
text form to a console or file. (GNUPLOT, a separate program by other
authors, is required for plotting features. GFFT is designed to invoke and
control GNUPLOT automatically.) It can plot in 2D (Amplitude vs
Frequency), or 3D (Amplitude vs Frequency vs Time). It allows the
selection of logarithmic X and/or Y axes, the dB scaling of X, and
arbitrary 3D rotation. GFFT can show multiple spectra in the same plot, or
append spectral data bands from earlier sessions.\n
GFFT provides 8 selectable FFT window types, including Blackman-Harris 92
dB. It can apply a special weighting for pink noise testing. Smoothing,
calibration, ranging, and quantization are also available. There are no
arbitrary limits to the number of frequency bins or smoothing points, or to
the length of data which can be analyzed.
.version
2.03
.date
1996.1.2
.author
Charles P. Peterson
.restrictions
NONE
.requirements
WB1.3 (V34) or higher and 1.5M total RAM, harddrive or two floppy drives.
Recommended: WB2.0 (V37) or higher, 3M or more RAM, 3M harddrive space.
AmigaGuide or MultiView.
Display or WDisplay.
.distribution
GNU Public License
.address
4007 Enchanted Sun
San Antonio, TX 78244-1254 USA
.email
Charles_P_Peterson@fcircus.sat.tx.us
cpp@crl.com
charlesp@darwin.sfbr.org
.exectype
68000
.source
All SAS/C source included.
.construction
SAS/C 6.51 with full optimization using ffp (68000 compatible fast f.p.)
.tested
A3000 (8M, WB2.1)
.run
GFFT=WB,GFFT
GFFT=CLI,GFFT WORKBENCH
GFFT=CLI,GFFT CLI
.docs
README
INSTALLATION
INSTALLATION-PROBLEMS
GFFT.HELP
Bugs
SpectrumAnalysis.guide
.described-by
Charles P. Peterson (Charles_P_Peterson@fcircus.sat.tx.us)