SCOPE or PLOT - which object is telling the truth?

jo geisler's icon

Dear all,

I would be happy if you could provide me an explanation:

In the attached patcher if you increase the phasor frequency the signal is dissappearing in the scope object which I don't understand???

In the plot object the the signal stays as I would expect it.

Could somebody explain that to me as this is driving me crazy for some time with a larger patch where I got the same behavior and I thought it is about my code but it seems to be dependent on the visualization object (scope or plot).

Thanks for your support.

Frage Phasor.maxhelp
maxhelp 28.31 KB
ScopeOrPlot

Jo

Cptnfantasy's icon

check out [scope~]'s @bufsize and @calccount - more info in the [scope~] reference

Max Patch
Copy patch and select New From Clipboard in Max.

jo geisler's icon

Hey Captn :-),

i see that with in increase in buffer size and a reduction of calccount to 0 the representation are getting closer to plot.

As asked before:

I still don´t understand why it is doing that? Even if I increase buffer size the visual signal representation is changing strangely. In addition plot and scope are not showing equal signals no matter how hard I tune with the scope parameters.... ???

So coming back to my question: If I want to inspect a signal I assumed that scope is showing me how the signal looks like. But as I now understand it doesn't as changing scope parameters are changing the visual signal.

As i am programming a lot of in gen I need something that I can rely on (PLOT, SCOPE,...) to debug my stuff.

BR

Jo

jo geisler's icon

If you want to see the patcher correctly you have to click on the tab BASIC. :-)

Hope to get a answer for this problem.

BR

Jo

jo geisler's icon

All, found the answer.

It is all written in the tutorial:

MSP Analysis Tutorial 2: Oscilloscope and Spectroscope

Topic closed :-)