Hi there,
I have an MPD 24 Midi Controller, which has a couple of "endless" knobs. The problem is that their output ends at 0 or 127. Is there a way to reset it (say, to 64 every ... ms), so that in the end only increments are sent? The reason is that I'd like to seek/scratch through an array that may be long and 127 steps are usually far from enough for this purpose.
The following setup did NOT work (here, controller 91 on channel 1):

[ctlin 91 1]
|
[moses 127]
| \
[moses 0] \
| | \
[64( [print] [64(
\ /
\ /
[ctlout 91 1]

Of course, instead of [print] there would be a handler for increment/decrement distinction etc.

Thank you.
giz

Hi, don't know if I understood correctly but in the attached patch
the endless controller is simulated by a number box limited in
its output and it is reset each time the controller outputs 0 or 128.

In your example the

[moses 0]
|
[64(

will never be true as long as the controller outputs only positive numbers
(the moses check is done on number strictly less than zero)

Ciao,
AlbertoZ

http://www.pdpatchrepo.info/hurleur/tryme.pd

edit: i couldnt work out my idea.

basically an inertial controller.
so you compare the value with what it was a certain time ago.
then somehow make it a decent value.
i kept running into problems with negatives.

the idea is, rather than the actual value, by twising the knob in one direction for up or another for down.
speed is the key.
if you are twisting fast you get higher output, slow, is lower.

i suppose this doesnt really help you either. seeing as its not what you wanted.

im sure its actually easy, but my brainmeats are fried for tonight.

The problem is:
At some point, the MIDI Controller (the physical, real one) must be told that it has been reset. Otherwise, it will always get stuck when it reaches its personal 127 or 0. Hence, it's a merely theoretical MIDI question: do ordinary MIDI controllers respond to messages and if so, where and how to send it?
(btw: a patch of mine not working doesn't actually surprise me...

It's been a while, so i hope i remember it well, but on my behringer bcr2000, when a controller has reached 127 and is turned further right, it keeps on emitting 127's (and opposite 0's when 0 is reached and left is turned). If your controller also has this behaviour it's not too difficult to make it go from 0 to whatever value you want.

No, unfortunately the akai mpd24 keeps quiet. (So I don't know why the knobs are called endless...)
Seems I need another approach. Thanks to all!
giz

Is it that you wanted to create higher values? I had a similar problem with the mpd24 and PD, trying to control volume controls etc. I basically had to put some maths in place. For example, if I needed values between 0-1 I just put a / 127 in place..

No I think he wants the encoder to send a continuous message rather than change
the range of the 1-127 that it already gives. I have an Akai MPK 49 that has 8 'endless' encoders but I couldn't get them to output anything past 127 as I keep turning the knob to the right

There must be some way of tracking the knobs range of 1-127 and using that to increment or deincrement another number...

I have an IDEA :D, need help in programming it

first you will need to have for each knob this, sending from program to pure data current value of knob, and storing that value, lets say 63. Now when you turn knob to one side, pure data receive FIRST number,(let say 5), then it waits for SECOND number, if its larger then (5) then PURE DATA SEND TO PROGRAM +1(it will be 64 then) if its smaller then (5) it sends -1 (62). THIRD number will be automatically be compared to SECOND, so it wont have to wait for FOURTH number to know does it have to send +1 or -1. So only on FIRST, received number pure data wont send anything, I think we can live with that.

WHEN IT REACH THE 0 then it will continuously send -1 for any 0 received, and for each 127 it will be +1

I hope that you understand this, and will be glad if someone make this I dont have a clue how to do it

SEE ATTACHMENT

http://www.pdpatchrepo.info/hurleur/mpd24_1.jpg

this above cant be done because when it reached 0 or 127 mpd24 wont send it again these two values.

@mekon
I'll try your patch with my MPK49. I think it does continue to broadcast 0 and 127 when it reaches those points. Is there a way to read the data coming off the mpd24 other than midi? Like sysex? or through HID? Make sure it's not broadcasting by putting a bang on that midiCC input

yes SYSEX is the answer....there is some sysex message that when sent to MPD24 it reset encoder, so basically it can be set to send sysex messages every time after +1 or -1 so we could finally can have endless encoder.

Just to figure out how to do it in pure data and it will be free, because other figure out how to do it in BOMES midi translator and it cost 50eur

any help would be appreciate

BUT ALL THIS FOR WINDOWS if its possible

* 127 this will make the slider 0-1 then make the slider rest with moses 1.01 and -0.01 be care full if you do it wrong you can miss up pd this is a looped slider the best way I know how