bs-spectrum - FFT Analyzer for iPhone / iPad
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2:09
iPad Vibration Analyzer Demo| New Vibration Analyzerby gtispindle3,867 views- 0:53
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iShootby NaughtyBitsSoftware28,386 views
It is the Y-axis which shows vibration amplitude is logarithmic NOT the frequency axis. VdB = 20.Log10 (V/(10E-8=). Put ips value for V and there you have logarithms. Using X-axis in logarithms is not used in industrial vibration analysis. Logarithm is to base 10 and NOT to base "e".)
ibrahimhcaglayan 4 months ago
Very nice, dude. If you don't mind, I'm also making a spectrum analyzer, and I have everything working, I'm just wondering how you rearranged the frequency axis logaritmically. Did you skip values from your array according to a log function, and then compressed the bins together?
Thanks.
metabog 1 year ago