frequency analyser

mroek · Posté le: Ven Avr 07, 2006 11:04 am Sujet du message:

The "frequency analyser" referenced in the beginning of this thread is about to become obsolete... :-)

I've started working on "Powerballalyzer", which is pretty much a clone of my RPMAnalyzer program, but tailored for Powerball.

I'm in a very early beta phase, but results are promising. The program will (at least in the beginning) only be for post-analysis work, but it will be heaps easier to use than the "frequency analyser", and you will be able to target specific RPM ranges for increased accuracy. My guess is that an accuracy of +/- 50 RPM should be within reach!

The vertical scale will show RPMs directly, and by placing the crosshair mouse pointer on the peak of the curve, you will see a direct RPM readout in the bottom of the window.

I will probably have a beta version for testing sometime tonight. Perhaps I should start a new thread for this tool? I cannot promise that I will spend a large amount of time on this program, but small wishes from you guys may be fulfilled if it's not too much work.

Here's a small teaser. This is taken from Akis' 16081 video:

http://personal.dynator.no/rpmgraph.gif
(too big to display)

As you can see in the bottom of the window, the RPM at the mouse cursor (crosshair) is 16045 RPM, which is pretty close to the 16081 RPM that the ball itself reported.

Publicités · Posté le: Ven Avr 07, 2006 11:04 am Sujet du message:

Obiw4n · Posté le: Ven Avr 07, 2006 11:09 am Sujet du message:

Wow, seems to be pretty accurate, if all this works so well I'll throw away my old fequency analyser and use yours. It's really promising!!
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YoD4 · Posté le: Ven Avr 07, 2006 11:10 am Sujet du message:

That's seems really good, you can create a new topic for your software

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Adrena1in · Posté le: Ven Avr 07, 2006 11:44 am Sujet du message:

Excellent, well done mroek, that looks very promising. Smile

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250Hz: (L/R)
-> 13603/13785
<- 14026/14974
Dual - 26659
90 - 18705 - 16865/18013
60 - 12206 - 11089/12283
30 - 6383 - 6415/6796

350Hz:
-> 11688/11409
<- 12238/13053
90 - 15799 - 13873/15407
60 - 10597 - 10546/10649
30 - 5362 - 5398/5895

donkapone · Posté le: Ven Avr 07, 2006 1:31 pm Sujet du message:

great stuff! can`t wait to test it
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mroek · Posté le: Ven Avr 07, 2006 5:51 pm Sujet du message:

The wait is over:

http://www.gyrotek.net/forum/ftopic891.html

Go to that thread and enjoy (hopefully)!

MJ · Posté le: Sam Avr 15, 2006 9:03 pm Sujet du message:

I´ve been using this afternoon your program and it´s great. Very Happy

Good job mroek. Smile

I used my webcam to capture the sound of my videos with the Sound Recorder of Windows and it works very well. Smile

One of the trials that I made was with a dual video: