Scope~ question (simple?)

Apr 9, 2007 at 10:51pm

Scope~ question (simple?)

I’ve been taking my students through the MSP tutorials of late, and as I was prepping for tomorrow’s class, I returned to the scope~ tutorial. I’ve never worried too much about “scope crawl” — as long as I could see the basic shape of the waveform, that was fine. Still, it seems to me that there’s something weird about scope~. Maybe I’m just missing something.

The way I read the tutorial, help file, and reference manual, the two scopes in this patch should be interchangeable. However, on my system, after banging to apply the settings, the scope~ on the left exhibits no crawl, while the one on the right crawls noticeably.

Any thoughts on why this occurs?

max v2;
#N vpatcher 362 170 962 570;
#P window setfont “Sans Serif” 9.;
#P window linecount 1;
#P comment 318 328 130 196617 after bang , this one creeps;
#P button 327 81 15 0;
#P message 438 149 26 196617 100;
#P message 318 149 26 196617 441;
#P message 187 149 20 196617 50;
#P message 67 149 26 196617 882;
#P user scope~ 318 192 448 322 441 3 100 -1. 1. 0 0. 0 0. 102 255 51 135 135 135 0;
#P user scope~ 67 192 197 322 882 3 50 -1. 1. 0 0. 0 0. 102 255 51 135 135 135 0;
#P flonum 215 82 35 9 0 0 0 3 0 0 0 221 221 221 222 222 222 0 0 0;
#P newex 215 108 49 196617 cycle~ 1;
#P message 98 48 29 196617 stop;
#P message 27 48 67 196617 startwindow;
#P newex 27 86 31 196617 dac~;
#P window linecount 2;
#P comment 346 81 100 196617 bang to apply new settings to scopes;
#P comment 67 328 130 196617 after bang , this one holds steady;
#P fasten 4 0 2 0 103 73 32 73;
#P connect 3 0 2 0;
#P fasten 13 0 9 0 332 136 72 136;
#P fasten 5 0 7 0 220 180 72 180;
#P connect 9 0 7 0;
#P fasten 13 0 10 0 332 136 192 136;
#P connect 10 0 7 1;
#P connect 6 0 5 0;
#P fasten 13 0 11 0 332 136 323 136;
#P fasten 5 0 8 0 220 180 323 180;
#P connect 11 0 8 0;
#P fasten 13 0 12 0 332 136 443 136;
#P connect 12 0 8 1;
#P pop;

#31275
Apr 9, 2007 at 10:57pm

Note I just realized I banged the scopes before saving, so the settings are already saved.

#101402
Apr 9, 2007 at 11:15pm

#101403
Apr 14, 2007 at 5:03am

Eric Honour schrieb:
> I’ve been taking my students through the MSP tutorials of late, and as I was prepping for tomorrow’s class, I returned to the scope~ tutorial. I’ve never worried too much about “scope crawl” — as long as I could see the basic shape of the waveform, that was fine. Still, it seems to me that there’s something weird about scope~. Maybe I’m just missing something.
>
> The way I read the tutorial, help file, and reference manual, the two scopes in this patch should be interchangeable. However, on my system, after banging to apply the settings, the scope~ on the left exhibits no crawl, while the one on the right crawls noticeably.
>
> Any thoughts on why this occurs?

No, it will stop at 89 samples per buffer…

But to make a scope~ stop, its better to set the trigger mode to up (or
down) anyway. Like you do with real scopes. I never understood why this
isn’t the default setting of scope…. Create a prototype of it…

#P window setfont “Sans Serif” 9.;
#P number 180 144 35 9 0 0 0 3 0 0 0 221 221 221 222 222 222 0 0 0;
#P number 67 144 35 9 0 0 0 3 0 0 0 221 221 221 222 222 222 0 0 0;
#P user scope~ 67 192 197 322 256 3 172 -1. 1. 0 0. 1 0. 102 255 51 135
135 135 0;
#P flonum 215 82 35 9 0 0 0 3 0 0 0 221 221 221 222 222 222 0 0 0;
#P window linecount 1;
#P newex 215 108 49 196617 cycle~ 1;
#P message 98 48 29 196617 stop;
#P message 27 48 67 196617 startwindow;
#P newex 27 86 31 196617 dac~;
#P comment 67 328 139 196617 this one holds always steady;
#P connect 8 0 6 1;
#P connect 7 0 6 0;
#P fasten 4 0 6 0 220 180 72 180;
#P connect 5 0 4 0;
#P connect 2 0 1 0;
#P fasten 3 0 1 0 103 73 32 73;
#P window clipboard copycount 9;


Stefan Tiedje————x——-
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#101404

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