Spectrum analyzer possible in DSP?

Russ · Aug 3, 2009, 04:09 AM

Quote:

Originally Posted by Max M.

>SA.minus compiles fine for me with VC 2003/kX SDK 3548...

good, that's because i added

Code:

#if _MSC_VER >= 1400
    #define trace(...) __noop
#else
    inline void trace(...) {}
#endif

my comment was for earlier code which won't compile with VC2003 because of "__noop"
(typically i try to avoid non-standard extensions but the __noop is too sweet)

Ahh, good stuff

Max M. · Aug 4, 2009, 08:24 AM

TheKezReturns

I see. Yep, that's the answer - considering the fullscreen drawing takes about ~25% of my ~2GHz Conroe, i guess 733Mhz P3 just goes out time with it. I.e. the re-drawing rate rises much higher then 48ms (it just starts to redraw as soon as CPU available and btw. gives incorrect decay/hold as they're bound to 48ms).

Well, if we recall that the SA.minus is not a "production" kind of thing it becomes a sort of expected compromise (finally the GDI+ was really a bad choice in terms of performance).

-------------

The solution to these problems is simple: OpenGL. To be honest i have a not-yet released (doh: no time. no time, no time) SA.minus VST cousin, it draws via OpenGL with 0% CPU load.
(And it's even less code for drawing - except the smooth curve that needs to be computed explicitly)
Unfortunalty i can't make its sources available (as the vst plugin as whole is build upon a few semi-proprietary libraries) - but i think i can share its drawing part with a one interested. This drawing code is pretty close to what its SA.minus bro does but there's a few key differences one would need to rewrite (and this will require some understanding of what exactly this code is doing). Well, in other words, drop me a message (email maybe?) if you're interested - we'll see what's possible (i'm sorry - for the moment i've really really no time to increase the entropy w/o being sure the corresponding entropy balancing step will be done

)

edwardar · Sep 20, 2009, 05:18 PM

Any chance of updating this for 3550? I'm never quite sure what types of plugins need updating for new versions (though most are builtin), but the latest SA definitely did not work with 3549.
This is one of my most used plugins... just can't help having it on while listening to music!

While I'm posting - would it be easy to make a peak-meter using exactly the same graphics and features? I know there are 2 other peak meters for KX (Peak,PeakX), but neither are resizable or customizable like SA is.

Aug 4, 2009, 08:24 AM	#62
Max M. d/h member-shmember Join Date: Dec 2002 Location: Evil Empire Posts: 2,412 Rep Power: 47	Îòâåò: Spectrum analyzer possible in DSP? TheKezReturns I see. Yep, that's the answer - considering the fullscreen drawing takes about ~25% of my ~2GHz Conroe, i guess 733Mhz P3 just goes out time with it. I.e. the re-drawing rate rises much higher then 48ms (it just starts to redraw as soon as CPU available and btw. gives incorrect decay/hold as they're bound to 48ms). Well, if we recall that the SA.minus is not a "production" kind of thing it becomes a sort of expected compromise (finally the GDI+ was really a bad choice in terms of performance). ------------- The solution to these problems is simple: OpenGL. To be honest i have a not-yet released (doh: no time. no time, no time) SA.minus VST cousin, it draws via OpenGL with 0% CPU load. (And it's even less code for drawing - except the smooth curve that needs to be computed explicitly) Unfortunalty i can't make its sources available (as the vst plugin as whole is build upon a few semi-proprietary libraries) - but i think i can share its drawing part with a one interested. This drawing code is pretty close to what its SA.minus bro does but there's a few key differences one would need to rewrite (and this will require some understanding of what exactly this code is doing). Well, in other words, drop me a message (email maybe?) if you're interested - we'll see what's possible (i'm sorry - for the moment i've really really no time to increase the entropy w/o being sure the corresponding entropy balancing step will be done ) __________________ Last edited by Max M.; Aug 4, 2009 at 10:45 AM. Reason: Doh, i got very bad habit to use "e.g." instead of "i.e."

Sep 20, 2009, 05:18 PM	#63
edwardar DriverHeaven Junior Member Join Date: Jan 2003 Posts: 30 Rep Power: 0	Re: Spectrum analyzer possible in DSP? Any chance of updating this for 3550? I'm never quite sure what types of plugins need updating for new versions (though most are builtin), but the latest SA definitely did not work with 3549. This is one of my most used plugins... just can't help having it on while listening to music! While I'm posting - would it be easy to make a peak-meter using exactly the same graphics and features? I know there are 2 other peak meters for KX (Peak,PeakX), but neither are resizable or customizable like SA is.

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