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Topic: SONIA FFT TEST (Read 1908 times) |
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pitaru
 
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SONIA FFT TEST
« on: Nov 2nd, 2003, 5:07pm » |
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Almost done with the next version of SONIA. It'll include more functions for getting sample data (such as current frame,total length, and isPlaying flag).
also - FFT (frequency spectrum analizer). I'm now testing it at http://pitaru.com/sonia/beta/fft
JSyn does not yet implement fft, so i'm doing the math in Java - which may prove too intense for some machines. That's way i'd love to get feedback on performance.
if no huge problems are reported, i'll write up the documnetation tonight.
cheers,
-amit
ps - please don't forget to install the jsyn plugin (http://www.softsynth.com/jsyn/plugins/) before viewing the fft test.
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| « Last Edit: Nov 14th, 2003, 2:29am by pitaru » |
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Steve
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Re: SONIA FFT TEST
« Reply #1 on: Nov 2nd, 2003, 5:16pm » |
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very cool. seems a tad sluggish(making other programs run slow) but the applet itself runs fine.
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pitaru
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Re: SONIA FFT TEST
« Reply #2 on: Nov 2nd, 2003, 5:23pm » |
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one more thing .. the test-applet mentioned above analizes live input from the microphone. On PC, you can change the input to read from internal wave/cd source.
Do this (on win2k) by:
- opening the Control Pannel > Sound & Multimedia
- choose the 'Audio' tab
- Click on 'Volume' in the *SOUND RECORDING* section.
- Choose the desired input source (via check-boxes)
(you can also reach this window by double-clicking on the volume icon, then Options>Properties>Recording>Apply
-amit
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pitaru
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Re: SONIA FFT TEST
« Reply #3 on: Nov 2nd, 2003, 5:26pm » |
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on Nov 2nd, 2003, 5:16pm, Steve wrote:| very cool. seems a tad sluggish(making other programs run slow) but the applet itself runs fine. |
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Yep. I'm expecting that because the math is done in Java. The future solution - I'll either write a dll or wait for Jsyn.
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pitaru
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Re: SONIA FFT TEST
« Reply #5 on: Nov 2nd, 2003, 5:57pm » |
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Thanks mikkel - That's good news (i havn't tested it on XP at all).
Steve - I'll be adding damping/EQ algorithms that will optimize the math. This way you'll be able to use less frequency bars for analyzing music (but not speech). I hope this will free up resources.
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mKoser
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Re: SONIA FFT TEST
« Reply #6 on: Nov 2nd, 2003, 6:06pm » |
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oh... forgot to mention, as Steve points out, it does slow the system down. When I try to expand the task-bar (bottom right corner) the animation of the taskbar was about 4-5 times slower than normal.
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mikkel crone koser | www.beyondthree.com | http://processing.beyondthree.com
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christian
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Re: SONIA FFT TEST
« Reply #7 on: Nov 2nd, 2003, 9:52pm » |
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tells me "no field named liveInput was found in..."
running XP.
christian
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christian
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Re: SONIA FFT TEST
« Reply #8 on: Nov 2nd, 2003, 10:30pm » |
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i try to make it work... amit,
can you imagine what happens
to my FFT.pde?
christian
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mKoser
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Re: SONIA FFT TEST
« Reply #9 on: Nov 2nd, 2003, 10:41pm » |
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christian,
if you are trying to get the FFT running on your machine locally (with your own code) your problem is that you need a .JAR file from Amit ... he has not put it out for download yet. The example applet he has posted is using this jar file.
We will have to wait for him to post the JAR-file.
Is amits example (link posted above) working on your XP machine?
cheers,
mikkel
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mikkel crone koser | www.beyondthree.com | http://processing.beyondthree.com
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christian
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Re: SONIA FFT TEST
« Reply #10 on: Nov 2nd, 2003, 10:48pm » |
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thats it... sometimes my brain plays football...
the example works fine... (i badly seem to need the
FFT.jar for my current works)
thank you 
christian
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pitaru
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Re: SONIA FFT TEST
« Reply #11 on: Nov 3rd, 2003, 1:22am » |
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almost done 
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olivier
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Re: SONIA FFT TEST
« Reply #12 on: Nov 3rd, 2003, 9:58am » |
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even on a prehistoric PC (P2 350 Mhz, Win98, 64 Mo Ram), it runs nice.
Cool!
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| « Last Edit: Nov 3rd, 2003, 9:59am by olivier » |
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bren
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Re: SONIA FFT TEST
« Reply #13 on: Nov 3rd, 2003, 1:16pm » |
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Tested on a G4 Cube 10.2.8 and works really well.
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Steve
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Re: SONIA FFT TEST
« Reply #14 on: Nov 3rd, 2003, 2:12pm » |
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yep works great, cant wait to get dirty with it.
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