Hallo, Ken Restivo hat gesagt: // Ken Restivo wrote: > 2's complement from 64/Relative (Binary Offset) > 2's Complement from 0 / relative (2's Complement) > Sign Magnitude / Relative (Signed Bit) > Sign Magnitude / Relative (Signed Bit 2) > Single Value Increment/Decrement
What does "Single Value Increment/Decrement" do? Sounds interesting as well and may save some work. > RPN Increment/Decrement Message > NRPN Increment/Decrement Message > > I tried each of these and peeked at the MIDI stream to see what they do, and > also at the output of PD's ctlin to see what might emerge. The "sign > magnitude" and "2's complement" ones look pretty promising: they indicate > which direction (up/down) and how fast you spin the thing. Assuming you get -1 and 1 for down and up and any positive number for speed, you can multiply both numbers to get a stream of single numbers. Then you just accumulate these numbers using the standard accumulator idiom: | [+ ]x[f ] | [0\ (See the counting.pd tutorial that I posted on this list several times for details.) > Now, to turn those numbers into a float between -1 and 0 that I can > use for controlling various parameters in PD. I don't think this makes sense: What should 0 and -1 indicate? The rotary controller doesn't have any left and right borders that could be mapped to be -1 and 0. And I also don't think, mapping -1 to min and 0 to max speed makes sense either. Ciao -- Frank Barknecht _ ______footils.org_ __goto10.org__ _______________________________________________ PD-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
