elemenoh

I am new to Max/MSP and I am having some problems getting it to do what I want.

I would like the pitchbend wheel to send a range of data from -2 to 2. So if the pitchbend wheel is stationary (64) it would send a value of 0. If it were completly to the left (0) it would send a value of -2 and completly to the right (127) send a value of 2.

So far I could only figure out how to send a range of zero or greater (0-1) but nothing negative. I know this is more of a math question but I just can't seem to wrap my brain around how to approach this.

Any help would be greatly appreciated. Thanks!

I would like the pitchbend wheel to send a range of data from -2 to 2.  So if the pitchbend wheel is stationary (64) it would send a value of 0.  If it were completly to the left (0) it would send a value of -2 and completly to the right (127) send a value of 2.  

So far I could only figure out how to send a range of zero or greater (0-1) but nothing negative.  I know this is more of a math question but I just can't seem to wrap my brain around how to approach this.  

Any help would be greatly appreciated.  Thanks!


midi-pitchbend-range

xbendin also gives me a much greater range of control.

On Dec 5, 2006, at 3:25 AM, Peter Castine wrote:

> Note that for both of these, MIDI 64 is mapped not to 0.0 but to 

> The MIDI value range 0-127 is asymmetrical, and forgetting that is 

It's symmetrical, just not symmetrical around an integer axis. 

Anything can be split in half - whether the mid-point is where you 

Associate Professor of Contemporary Music

>>
>> [scale 0 127 -2. 2.]
>> or
>> [zmap 0 127 -2. 2.]
>
> Note that for both of these, MIDI 64 is mapped not to 0.0 but to  
> 0.015748.
>
> The MIDI value range 0-127 is asymmetrical, and forgetting that is  
> something you do at your own peril.
>

It's symmetrical, just not symmetrical around an integer axis.  
Anything can be split in half - whether the mid-point is where you  
want it is another story. ;)

Associate Professor of Contemporary Music
College of Santa Fe
Contemporary Music Program
1600 St. Michaels Drive
Santa Fe NM 87505
http://pubweb.csf.edu/~smill
(505) 473-6197

On 5-Dec-2006, at 16:57, Steven Miller wrote:

> It's symmetrical, just not symmetrical around an integer axis. 

> Anything can be split in half - whether the mid-point is where you 

Except that your mid-point is not an element of the set of MIDI 

values. What bit pattern represents 63.5 in MIDI?

And the problem is that the MIDI spec declares 64 as the mid-point 

for pitch bend, leaving 64 distinct 'flat' values but only 63 'sharp' 

BTW, you might want to take a look at coll.

Peter Castine +--> Litter Power & Litter Bundle for Jitter

Interface Building for |home | chez nous|

Max/MSP Extremely cool |bei uns | i nostri|

> It's symmetrical, just not symmetrical around an integer axis.  
> Anything can be split in half - whether the mid-point is where you  
> want it is another story. ;)

Except that your mid-point is not an element of the set of MIDI  
values. What bit pattern represents 63.5 in MIDI?

And the problem is that the MIDI spec declares 64 as the mid-point  
for pitch bend, leaving 64 distinct 'flat' values but only 63 'sharp'  
values.

--------------    http://www.bek.no/~pcastine/Litter/    -------------
Peter Castine             +--> Litter Power & Litter Bundle for Jitter
                                Universal Binaries on the way
iCE:  Sequencing,  Recording &
       Interface  Building  for                   |home    | chez nous|
       Max/MSP   Extremely cool                   |bei uns |  i nostri|
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On Dec 5, 2006, at 1:54 PM, Peter Castine wrote:

> On 5-Dec-2006, at 16:57, Steven Miller wrote:

>> It's symmetrical, just not symmetrical around an integer axis. 

>> Anything can be split in half - whether the mid-point is where you 

> Except that your mid-point is not an element of the set of MIDI 

> values. What bit pattern represents 63.5 in MIDI?

> And the problem is that the MIDI spec declares 64 as the mid-point 

> for pitch bend, leaving 64 distinct 'flat' values but only 63 

Very true, the MIDI spec is asymmetrical with regards to pitchbend; 

> BTW, you might want to take a look at coll.

Thanks, I know of coll. My understanding is coll uses ints as 

indices. I can't use, for example, the words 'cat' 'dog' and 'monkey' 

as indices, can I? Or am I missing something in the reference pages?

> On 5-Dec-2006, at 16:57, Steven Miller wrote:
>
>> It's symmetrical, just not symmetrical around an integer axis.  
>> Anything can be split in half - whether the mid-point is where you  
>> want it is another story. ;)
>
> Except that your mid-point is not an element of the set of MIDI  
> values. What bit pattern represents 63.5 in MIDI?

>
> And the problem is that the MIDI spec declares 64 as the mid-point  
> for pitch bend, leaving 64 distinct 'flat' values but only 63  
> 'sharp' values.

Very true, the MIDI spec is asymmetrical with regards to pitchbend;  
the range 0-127 isn't (necessarily).

> BTW, you might want to take a look at coll.
Thanks, I know of coll. My understanding is coll uses ints as  
indices. I can't use, for example, the words 'cat' 'dog' and 'monkey'  
as indices, can I? Or am I missing something in the reference pages?

> It's symmetrical, just not symmetrical around an integer axis. Anything 

> can be split in half - whether the mid-point is where you want it is 

In most centered midi controls like pan you want it exact in the middle

and you need one midi value (integer) to place it there.

Steven Miller wrote:
> It's symmetrical, just not symmetrical around an integer axis.  Anything 
> can be split in half - whether the mid-point is where you  want it is 
> another story. ;)

In most centered midi controls like pan you want it exact in the middle
and you need one midi value (integer) to place it there.

-- 
Stefan Tiedje------------x-------
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MIDI Pitchbend Range