well they have and use them at Berklee, where Dr B teaches...
Its quite an instrument. Very few that even come close to the
functionality of that device. I've never used that software of his,
but I personally found the pc interface software and all the C++ that
was involved, very annoying.
I am one of the authors of that paper...
I surely was using this with Max until my Laptop got
It worked very well... however now both the Radio
Baton hardware and the Max/MSP software have improved
so much that it would probably be worth it to
reprogram the whole thing, making it faster and with
the radio baton does pure radio-position tracking, there's no touch-sensibility
built into the board. to get the velocity, you'll have to calculate the deltas
of height before impact.
the outputs are purely midi (for now), so you use all the usual suspects
(objects) in core-Max.
it looks like a 3D controller, but is more like a 2 1/2 dimensional one. the
z-dimension (height) becomes more imprecise the higher you go, therefore you
only get a cone of precision above the board that goes from precise to unusable
in about 18 inches.
max mathews and tom oberheim are working on a new model which intergrates
wireless batons (and hopefully a different protocol for transmission).
i love the radio baton for it's directness, speed and intuitive handling, it's a
simple and very effective controller (and it's fast, fast enough for percussion
for purchasing a radio baton contact max mathews or tom oberheim directly.
> I know it gives you 3 axis positional information for
> each baton. Does it also give you information
> on velocity of where you strike the pad?
>> I was more interested in how one goes about acquiring one
>> and if there is a max external that comes with it.
As part of my school work I have been improving the transmission
mechanism of the radio baton (we call it the radio drum, or the Boie
drum). At this point the apparatus is working purely in the MSP
domain - the sticks are driven with carrier frequencies generated by
the computer, and the output of the antenna is fed into a sound card
so that the demodulation and positional math can be done with signal
objects. In other words, there is no need for the hardware black box
that comes with the system! Also in the good news department, the
resolution is much better than MIDI (> 85dB in each dimension, or
about 15 effective bits) and the latency can be as small as your sound
card can handle - in my case this is less than 5ms.
Lots of ideas for improvement too. I'm currently working on better
filtering algorithms to improve the resolution, and different antenna
geometries that will do a better job of tracking in 3D space.
Yeah, I couldn't find any definitive reference to this either. I just
guessed at it since the help file only shows the "clear" message as
part of the polyphonic mode subpatch, not as part of the main patch.