Version 3.5 Build 232 - 9/11/99

• Printing did not advance signal automatically. (down the signal and across records).
• Sampling frequency info did not change after decimation.
• Improved source button switching.
• On some computers CPU load indicator does not work.
• Default templates with printing colors set to B/W are now included in the distribution. (You must save the template immediately after starting FFTProp).
• Saving .wav and .bin files. Improved save options dialog behavior.
• Added support for 32-bit integer wav files.
• Added support for 96kHz, 88.2kHz and 48kHz wav files.

Version 3.5 - 8/99

• Real-time record and play monitoring.
• CPU load indicator.
• User definable screen update frequency.
• Double precision allows phase angle measurement with 0.000001 degree accuracy.
• Auto and single trigger.
• Trigger on peak, border pass, (post/pre trigger).
• Trigger channel can be different from data channel.
• Bode plots: Amplitude - Frequency, Phase - frequency.
• Peak hold averaging.
• Write on trigger.
• User definable sine sweep speed.
• On-line wavelet analysis.

Version 3.01 - 6/99

• Peak filtering
• Totally accurate phase measurement for all non-periodic signals. (with a reference at the begining of the time window).
• SNR, SINAD, SFDR, Noise-floor statistics.

Version 3.0 - 4/99

• Real spectrum
• Imaginary spectrum
• Cross-correlation
• Auto-correlation
• Discrete cosine trasform
• Real cepstrum
• Cross spectrum
• Transfer function
• Coherence.
• Total harmonic distortion % and Noise %
• Two new text files.
• Reads windows PCM (*.wav) support.
• Signal overlapping. (samples and %).
• Hilbert transformer generator and filtering
• Kaiser parametric window
• Chebyshev parametric window
• Zero padder.
• Higher order spectra: Bispectra and Bicoherence
• Periodogram.
• RMS, Mean, Crest, Peak, StDev - Time charts.
• Peak Amplitude, Phase, frequency - time charts.
• Wavelets decomposition.
• Multirate Decimation/Interpolation.
• Chart cloning.
• Parametric printing (down/across) (sequential /mulitplexed) of files.
• Automatic detection of multiplicative components (sidebands and modes)
• Automatic marking of harmonic components.
• Interpolation of marked peaks achieving up to 500 times better frequency estimation
• 0.1 phase degree estimation, and 1000 times better amplitude estimation then with standard
• resolution and considerably better time-frequency resolution (obsoletes Cohens general type of time-frequency distributions).
• Traces peaks: current or largest.
• Automatically finds largest peaks.
• Prints while tracing peaks.
• Each chart can save: marks, picture, values.
• Fully configurable marks (color, shape, size...)
• Single line bispectra/bicoherence analysis.
• Real time emulator.
• Last used file list.
• Drag and drop file capabiliy.
• Intel Pentium, Pentium II and Pentium III optimized