[PD-dev] cos and large amplitude signal in?

[Nicolas Danet]

Hi, 

The cos signal object seems to give bad results for a large amplitude signal in (> 1024). As far as i understand it is limited to (2^19 / COSTABSIZE) due to the fractional trick here < https://sourceforge.net/p/pure-data/pure-data/ci/master/tree/src/d_osc.c#l176 >.

Is it a well known limitation?

#N canvas 188 157 698 331 12;
#X obj 25 170 cos~;
#X obj 25 219 snapshot~;
#X floatatom 25 245 0 0 0 0 - - -;
#X obj 92 185 metro 500;
#X obj 92 159 r metro;
#X msg 387 92 \; metro 0;
#X msg 368 38 \; pd dsp 1 \; metro 1;
#X text 455 53 <-Click to start;
#X text 456 98 <-Click to stop;
#X msg 83 34 1025;
#X obj 25 122 sig~ 1023;
#X msg 25 33 1024;
#X msg 146 34 1026;
#X connect 0 0 1 0;
#X connect 1 0 2 0;
#X connect 1 0 2 0;
#X connect 3 0 1 0;
#X connect 4 0 3 0;
#X connect 9 0 10 0;
#X connect 10 0 0 0;
#X connect 11 0 10 0;
#X connect 12 0 10 0;
#X coords 0 0 1 1 200 140 0;