iso-8859-1dear claire pickard, there are of course many options. there are some tricky issues though which come up and may surprise you. for example, what happens when a few people enter the room at the same time (as they often do?). how will the individual gleam any sense that THEY have caused the sounds (as opposed to their neighbor)? there is movement and there is sound, and the one causes the other, but this alone is not sufficient for an interactive experience. there are different ways to approach the issue. one is not to care. this is the "if they get it, they get it" approach. but without guidance you may be surprised how very few notice it at all, or take the time to sort it out. another approach is to limit the system to one at a time. ive seen this done effectively with architectural means. it is also possible to build systems which are sensitive to the dynamics of the movement accross narrowly defined fields or zones in space. such a system could theoreitcally map different sounds to different people, again depending on the design of the space. it can also let, say, fast-moving or arm-waving public generate different sounds than otherwise. palindrome offers a system called EyeCon that does these kinds of things. it is based on video cameras and is highly flexible, offering a wide variety of movt. parameters as inputs. getting it to run is easy (it runs on typical PC computers), but as you might expect, it takes practice to instigate its more sophisticated features. it costs 1000$. With friendly regards, Robert Wechsler At 13:35 23.11.00 -0000, you wrote: >>>> VerdanaDear all on the dance-tech list, We have a residency coming up which calls for motion sensors, to be set to trigger sounds as participants move as part of the performance. We've never done anything like this before and I would appreciate some advice on what kind of sensors I'm looking for. We're based in the North of England so need a supplier who's reasonably local and (of course) as cheap as possible. Any advice would be gratefully received. Thank you for your help. Yours, Claire Pickard Disability Arts Officer Calderdale MBC Museums and Arts Halifax, West Yorkshire, UK <claire@happychap.co.uk <<<<<<<< ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Robert Wechsler Artistic Director PALINDROME Inter-media Performance Group Johannisstr. 42 90419 N¸rnberg fon: 49 911 39 74 72 fax: 49 911 377 8311 mobile: 49 179 511 0400 complete information, including scheduled touring, photographs, and so on can be found under: http://www.palindrome.de