[PD] dance controllers...

[Johannes Taelman]

about doppler-sonar...

On Tue, 2 Apr 2002, Sukandar Kartadinata wrote:
> >It does not contain positional
> >information.
>
> maybe you could get that by modulating the sinewave with a step
> function (steps bigger than your max. deviation) ? just thinking
> aloud...

I was rather thinking about transmitting small-band noise to combine
motion-sensing with position-sensing.

> my biggest problem with reflective US was always the amount of energy
> I got back from soft objects (like dancers or people in general...)
> which was never enough to make it work reliably for larger distances

Try calculating differences between successive echoes.

Though I haven't tried it yet.

Johannes