On Thu, 3 Jul 2014, Fons Adriaensen wrote:
> It all seems a nice idea, but OTOH you can get a Yamaha motorised
That is about the same price I was looking at for motor faders to. But...
that is not the whole story... You need also the driver for the motor, a
touch sensor so it knows you are controling it and don't burn the motor
out trying to go against your movement and you also need an analog in
port. Also needed is the circuitry to receive the virtual fader position
from where ever and apply it to the fader logic. SO the fader is $20, but
the whole price is closer to $50 (for diy, manufactures can design for way
cheaper with custom chips, etc. as they are already making a board of some
sort.) An encoder is pretty much direct digital read and only one
direction data flow. So the cost of belt and pullies may be still less
than the motor fader in a diy situation. In a manufactured product, motor
faders give the user what is "expected" which is a way lower risk than the
cost of re-engineering and a possible product flop. I am sure using a
large touchscreen could be done for a reasonable price if the expensive
projects had worked out well, but that doesn't seem to have happened.
People want faders they can feel... we want to be able to feel them and
operate them without looking either because we are watching something
else, or even because it is dark. In fact too many screens may make the
room to light for some people or in a live situation.
I haven't even started ordering parts, let alone building, and I have
already learned a lot. :) I am almost thinking about doing more than one
kind of fader just to see what the differnce in complexity, cost and usage
is. I will have to think of a reasonable way of using more than one kind
with out it being confusing.
Because of my usage, where the computer is the other part of the mix desk,
There are differences from what a stand alone control surface would be
like. I am relying on the computer screen(s) for things like fader
position and may have a small, skinny, monitor strip for the bottom of the
screen to give other feedback. I am not even sure that my USB interface
will be fast enough to make any kind of fader work, it will give me a pile
of buttons though, I will at least have a way of controlling transport and
some other things that is not focus dependant (does not require the
application I am controlling to be the window with focus).
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