Topic: Rotary Sensors and Continuous MIDI data

Rotary Sensors and Continuous MIDI data

tomac tomac 1	Feb 9, 2006 at 7:35pm Rotary Sensors and Continuous MIDI data Hello! I have the following problem: I have a rotary wheel sensor, which gives out MIDI values roughly from 0 to 127. Now, I want to use it to play an audio file by granulation, so that I can roll along the sample. The rotary sensor’s midi value jumps to its minimum after it reached its maximum. for now i simply used a counter to get continuous data (0 to a very large number). I don’t really know if that won’t lead to problems. I want to read every sample in the buffer according to the rotation speed of the wheel. To make the patch understand, that the movement is backwards I want to compare the previous value with the current one. Is there actually an object, that does that for me? After scaling the values for very slow movements, I used a line~ object for interpolation. Unfortunately with that it doesn’t seem to be possible to play the file faster than it’s original speed. well, i see how i get on, but any ideas are very much appreciated thanx a lot #24355
Trum Trum 2	Feb 11, 2006 at 12:37am could do it all with groove feed the sample into a circular buffer of about 30 seconds then control the speed of playback with groove maybe. Could scale it so you could have something like -5 to 5 each side – using the wheel like a continuous pitch wheel- hope that helps. T #70324
Stefan Tiedje Stefan Tiedje 1 93	Feb 15, 2006 at 11:35am Two things to consider: I don’t know which continuos Midi rotary you use, but I bet you can set it to different modes: The one you want is: Increment decrement. turning it right it will spit out low numbers (1-5), turning it left it will spit out high numbers (122-127) to be interpreted as complementary negative numbers. You then have to accumulate these values (the high ones subtracted by 128). The soultion beside doing it yourself (what I recommend): St.Dialin from my St.ools. The other if you can’t change the behaviour of your device: I have in my abhaXions a abstraction which does the opposite of a modulo operation, it will count on… Its called [!%] (to be translated “not modulo”. Find it at c74/share. Stefan – [][] [][][] [][] [][][] [][][][][][][][][][][][][][][] Stefan Tiedje Klanggestalter Electronic Composition & Improvisation /~~~~~ \ /\|() ()\| ))))) )\| \| \|( \ /// _/)/ ))))) ___/ /// ————————-x—- –_____———–\|———– –(_\|_ —-\|—–\|—–()—- – _\|_)—-\|—–()———– ———-()————x—– 14, Av. Pr. Franklin Roosevelt, 94320 Thiais, France Phone at CCMIX +33-1-49 77 51 72 #70325
tomac tomac 1	Jun 8, 2006 at 11:23pm oh, sorry, i completely forgot this thread, cos time was running out, but ifound solutions in the end. anyway, thank you very much for the suggestions here, it’s very much appreciated. #70326

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