Download of SpectrumSolvers 6.501 was on the developer's website when we last checked. We cannot confirm if there is a free download of this software available.
We cannot guarantee that the program is safe to download as it will be downloaded from the developer's website. Before launching the program, check it with any free antivirus software. This free software was originally designed by Optimal Designs Enterprise. The software belongs to Education Tools. The most frequent installation filename for the software is: spectrumSolvers.exe. The most popular versions of the SpectrumSolvers 6.3, 6.2 and 6.1.
From the developer:
Which estimator is best for your job? Helps Find best Spectral Estimation Method for a Power Spectral Density plot. A menu of 10+ spectral estimators from Steve Kay's textbook 'Modern Spectral Estimation' 1988 is available to choose from. The results differ dramatically from one estimator to another. Plus, varying input parameters and/or number of points may provide discrepancies. Observe how zero padding effects your results.
You may want to check out more software, such as StatPlus 2007, Avantage BPM Foundation or Adding Machine, which might be related to SpectrumSolvers.