[sdiy] A different kind of polyphonic aftertouch

[Mike HEQX]

Yes, true. So hopefully we will see more paradigm shifts in controllers. 
Even if you use the keyboard structure as a familiar starting point ( 
like Roli did ) we can see how NOT focusing on the two switch method of 
rendering velocity sensitivity can yield amazing results. In this video 
Herbie Hancock talks about midi keyboards, and not much has changed 
since then in terms of basic hardware.

https://youtu.be/gsfT_5OQJSI


On 12/21/2017 10:35 AM, Bruno Afonso wrote:
> What is necessarily specific to hammer, the velocity of note? You can 
> simply ignore velocity and use a CC to fully control the envelope. 
> This is what Continuum and Roli give you if you wish so and your synth 
> allows you to do it. Then note ON and OFF are simply mute parameters.
>
> It's nice to use the velocity to further shape your sound since 
> velocity is inherently musical as the onset of sound is key to how we 
> perceive timbre in acoustic instruments.
>
>
> On Sun, Dec 17, 2017 at 11:04 AM Mike HEQX <mike at heqx.com 
> <mailto:mike at heqx.com>> wrote:
>
>     Yes it's the midi paradigm that I was thinking under.
>
>     That's the thing about midi. Some of it is based on the Piano, and
>     that's a limited scope in terms of key action, and also very
>     specific to
>     hammer action. Ultimately a limiting factor in creating new
>     instruments.
>     maybe i have not seen the full spectrum of controllers though.
>
>     Roli did a good job with the Seaboard as a workaround solution. Even
>     with HD midi are we really leaving the piano model and being more
>     open?
>     Not sure on that one.
>
>     Mike
>
>
>     On 12/17/2017 1:43 AM, rsdio at audiobanshee.com
>     <mailto:rsdio at audiobanshee.com> wrote:
>     > You don't even need two thresholds.
>     >
>     > Velocity is the difference between any two positions, provided
>     that you know the time between the measurement of each position.
>     Since most keyboard scanners run at a fixed polling rate, every
>     scan could produce a velocity by comparing the old and new
>     positions. Negative velocities would simply be release velocity.
>     >
>     > You still might want thresholds of a sort, depending upon
>     whether you want the MIDI Velocity to reflect the first velocity
>     measurement after the key leaves the top position, or the last
>     velocity measure before the key hits the bottom position. It would
>     be interesting to see how much they differ, and which corresponds
>     more closely to the feel of the musician.
>     >
>     > If you break out of the MIDI paradigm, though, you could have a
>     messaging protocol with continuous position and velocity updates.
>     >
>     > Brian
>     >
>     >
>     > On Dec 16, 2017, at 8:45 PM, Mike HEQX <mike at heqx.com
>     <mailto:mike at heqx.com>> wrote:
>     >> This type of linear sensing can also sense velocity just like
>     two switches do now in most keybeds, just by setting two
>     thresholds. So you get the linear and switching at the same time
>     and it's adjustable. Very useful.
>     >>
>
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