Expression pedal MIDI velocity (aftertouch?)

Liquid_Metal · Post by **Liquid_Metal** » Tue Feb 24, 2015 9:12 am

Would it be possible to use an expression pedal to change the velocity of sustained notes? For instance, if I play a violin patch, could I use an expression pedal to change the intensity of the note after I hit the note and hold the key?
With the rise of touch sensitive controllers (Linnstrument, Continuum, Seaboard), this would be a nice way of being more expressive with the keyboard itself.

Liquid_Metal · Post by **Liquid_Metal** » Wed Feb 25, 2015 5:10 pm

No one?

ronnfigg · Post by **ronnfigg** » Thu Feb 26, 2015 8:23 am

change the intensity of what note parameters? Volume? Filter? Modulation? All of the above?

Liquid_Metal · Post by **Liquid_Metal** » Thu Feb 26, 2015 11:04 am

Velocity as in standard MIDI volume. Some sounds have amazing differences in intensity with volume that are normally only accessible by using keys (soft touch for low volume and intensity, harder touch for louder volume and intensity), but instruments like violin and saxophone allow to change the volume and intensity in the middle of a note (swells, decreases, up and down).

phattbuzz · Post by **phattbuzz** » Thu Feb 26, 2015 12:46 pm

Liquid_Metal wrote:Velocity as in standard MIDI volume. Some sounds have amazing differences in intensity with volume that are normally only accessible by using keys (soft touch for low volume and intensity, harder touch for louder volume and intensity), but instruments like violin and saxophone allow to change the volume and intensity in the middle of a note (swells, decreases, up and down).

You can assign an expression pedal to change the volume, open & close the filter (and just about any other parameter as well) while the notes are being played. You could also use aftertouch, the ribbon or another controller to do this. It is assignable per patch and will take some minor tweaking to make it effective. It's usually not just the volume that need to be controlled on acoustic instruments for swells, you may also need to open the filter.
Velocity is a parameter that deals with how hard you hit the note. While most times this means the initial volume of the note will be louder, it has nothing to do with the note after that. Unless we talk about release velocity - but that's a whole other subject.

Liquid_Metal · Post by **Liquid_Metal** » Thu Feb 26, 2015 1:35 pm

phattbuzz wrote:
Liquid_Metal wrote:Velocity as in standard MIDI volume. Some sounds have amazing differences in intensity with volume that are normally only accessible by using keys (soft touch for low volume and intensity, harder touch for louder volume and intensity), but instruments like violin and saxophone allow to change the volume and intensity in the middle of a note (swells, decreases, up and down).
You can assign an expression pedal to change the volume, open & close the filter (and just about any other parameter as well) while the notes are being played. You could also use aftertouch, the ribbon or another controller to do this. It is assignable per patch and will take some minor tweaking to make it effective. It's usually not just the volume that need to be controlled on acoustic instruments for swells, you may also need to open the filter.
Velocity is a parameter that deals with how hard you hit the note. While most times this means the initial volume of the note will be louder, it has nothing to do with the note after that. Unless we talk about release velocity - but that's a whole other subject.

Thanks for the clarification. So it's not velocity but probably a combination of volume and filtering.
It might make more sense to use the joystick (not the vector one) for it. X-axis for pitch (vibrato) and y-axis for intensity/volume: neutral is a standard volume, x axis down is lower (or no) volume/intensity and x-axis up is louder/more intense.
The reason I thought of an expression pedal is because then you can use both hands to play. But its probably not used a lot for chord work but for leads, which I usually play with the right hand only anyway.

SanderXpander · Post by **SanderXpander** » Thu Feb 26, 2015 7:08 pm

Velocity is indeed not the same as what you're trying to do. Velocity is a value transmitted together with the "note-on" command. There is no way to change the velocity after you already played the note. What you're looking for is probably "expression" which is often used to modify volume after the note has already been played. In Kronos, you can set the pedal to "expression" in the global menu and it will do what you want.

If you want even more control, you could set it to "foot controller" (CC#04), but then you'd have to program the exact effect you want (filter, modulation, volume, fx depth, whatever) for practically every patch.