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- .name
- GFFT
- .type
- Sound Analysis
- .aminet-dir
- misc/sci
- .short
- FFT spectrum analysis of sample files
- .description
- 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
- 1.12
- .date
- 1994.8.29
- .author
- Charles P. Peterson
- .restrictions
- NONE
- .requirements
- WB1.3 (V34) or higher and 1.5M total RAM. Will run on some systems with 1M
- RAM with reduced capabilities. Recommended: WB2.0 (V37) or higher, 3M or
- more RAM, and harddrive or second floppy. Also requires GNUPLOT, a
- separate program by other authors. GNUPLOT V3.0 or higher is required;
- GNUPLOT V3.4 or higher is required for some 3D features (only).
- .distribution
- GNU Public License
- .address
- 4007 Enchanted Sun
- San Antonio, TX 78244-1254 USA
- .email
- Charles_P_Peterson@fcircus.sat.tx.us
- .exectype
- 68000 and 68020/68881
- .source
- All SAS/C source included. (395K)
- .construction
- SAS/C 6.51 with full optimization; both FFP and 68881 versions included
- .tested
- A3000 (8M, WB2.1); A500 (1M Chip, 1 floppy, WB1.3); and beta testers
- .run
- GFFT=WB,GFFT
- GFFT=CLI,GFFT WORKBENCH
- GFFT=CLI,GFFT
- .docs
- README
- INSTALLATION
- GFFT.HELP
- Bugs
- .described-by
- Charles P. Peterson (Charles_P_Peterson@fcircus.sat.tx.us)
-