Pitch Bend Scaling

[miekwave]

I have some Midi Sequences where Pitch Bend Patch is at +/- 2 SEMI TONES
I want to apply the same sequences on a patch with +/- 12 semitones (octave)

I must re-scale the Sequence with the +/- 2 SEMI TONE pitch bend range to that of a +/- 12 semitone pitch bend range. How do I do that with the clip Envelope editor?

I used this feature on RM1x, but I prefer to do it on Ableton

[Edit: I can not automate the pitch bend range since that is a NRPN/SYSEX perameter. Ableton Live does not Tx SYSEX messages)

[vitalispopoff]

If I get the point: try searching inner parameters of instruments.
For instance: in operator You'll find it in main window (enter by activating the lowest right section) default value is +5

[miekwave]

If I get the point: try searching inner parameters of instruments.
For instance: in operator You'll find it in main window (enter by activating the lowest right section) default value is +5

Hi Vital,

I don't want to adjust the patch pitch bend range. I want to rescale the envelope. I used this feature on RM1x for many patches. You can learn more about it here.
http://launch.groups.yahoo.com/group/tu ... ssage/6521



What I am trying to do is rescale pitch bend envelope via midi PB modulation on a clip.

Where if 0=-12 SEMITONES .5=0SEMITONES and 1=+12 SEMITONES then if I rescaled that to +/-2 SEMI tones then the envelope will scale itself automatically to 0.3333=-2SEMITONES 0.5=0SEMITONES and 0.66666=+2 Semitones

Bass Patch has a +/-12 SEMITONE pitch bend range
String Patch has a +/-2 SEMITONE pitch bend range

After coping the String notes to the Bass track minus one octive, I would like the Bass to follow the same pitch bend pattern.
At its current setting, the Pitch Drops and rises wildly.

I perform the bass track with +/-12 PB modulation on other scenes, so re-scaling the patch itself is a no go.

[vitalispopoff]

then I won't help - It's too much for me

[infernal.machine]

Re-scale the patch itself. And automate the PB range as needed so you can accomodate other clips with a wider range.

[miekwave]

Re-scale the patch itself. And automate the PB range as needed so you can accomodate other clips with a wider range.

This is not an option since the bass patch uses +12 SEMITONE bend range on other clips. You can not automate PB range on External Midi without SYSEX (Ableton Clip envelopes can not transmit SYSEX)

[theophilus]

I have some Midi Sequences where Pitch Bend Patch is at +/- 2 SEMI TONES
I want to apply the same sequences on a patch with +/- 12 semitones (octave)

I must re-scale the Sequence with the +/- 2 SEMI TONE pitch bend range to that of a +/- 12 semitone pitch bend range. How do I do that with the clip Envelope editor?

I used this feature on RM1x, but I prefer to do it on Ableton

can you not automate the pitch bend range? would be so much easier.

i don't think ableton has this built-in; could be hacked together in m4l pretty easily though i would think.
you could use this too: http://www.thepiz.org/plugins/?p=midiPBCurve but setting up vsti midi processing
in ableton isn't very convenient. and it's one way - i.e. you can downscale +/- 12 to make something +/-2,
but you can't go the other way.

[be tonal]

How does the rm1x even do this? Afaik the pitchbend data only has values from 0-127, rescaling this to a sixth won´t even hit the +2 semitones correctly.

[miekwave]

How does the rm1x even do this? Afaik the pitchbend data only has values from 0-127, rescaling this to a sixth won´t even hit the +2 semitones correctly.

Hi Tonal,

That is an incorrect assumption, pitch bend is a 14 bit value (One status bit followed by two 7-bit bytes=14bit), approximately 8000 values + and 8000 values negative. Most CC values have a resolution of 128 values because they are 7 bit.

[be tonal]

How does the rm1x even do this? Afaik the pitchbend data only has values from 0-127, rescaling this to a sixth won´t even hit the +2 semitones correctly.

Hi Tonal,

That is an incorrect assumption, pitch bend is a 14 bit value (One status bit followed by two 7-bit bytes=14bit), approximately 8000 values + and 8000 values negative. Most CC values have a resolution of 128 values because they are 7 bit.

Ah thx, that makes sense.
And Max4Live would do this.

[Muzik 4 Machines]

just do the math and rescale the enveloppe?
if 0-8192=0-12 then each semitone is 683
select the whole thing and lower the 8192 points to 683 and it will bend 2 semi on a 12 semi range

since clip enveloppe select everything, select all, lower the top to -6827 (it will scale the bend downs)
then deselect it, reselect all and bring it up to 683(top points) (the middle should allign to 0 and low bends should be at -683 too (anyway that's how i do with mod wheel scaling, should work for pitch bend