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The Datafile PD-CD 4
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DATAFILE_PDCD4.iso
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utilities
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utilsf
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fftgraph
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Abstract
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1995-09-20
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943b
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FFT package :
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Purpose:
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These programs perform a frequency analysis using the fast Fourier
transform. They expect an Armadeus formatted input file and output graphs in
Draw format.
FFT_2D outputs a two dimensional graph with level as y-axis and
frequency as x-axis.
FFT_3D option 3D outputs a three dimensional graph with frequency
along the y-axis, time along the x-axis and level is deflection.
FFT_3D option sonograph outputs a three dimensional graph with
frequency along the y-axis, time along the x-axis and level is black level.
C sources are included.
Requirements:
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RISC OS3, ARM3 (the program uses the SWP op-code which is not
supported by ARM2, ARM3 does and I don't know for the others).
Full infos:
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In ReadMe file.
Bugs:
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None, so far, but…
Contact:
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e-mail <pdelcham@ulb.ac.be>
mail Daniel Aronovitch
37, rue de la Constitution
B - 1030 Bruxelles