One of my first posts here. But as my English is bad, I pass through a translator
To build a laser harp, two tracks in french :
1 : http://harpelaser.free.fr In French, but there is all, plane offset films, and software under Windows to program the toothing-stone.
This toothing-stone is neither sensitive to the velocity nor with the controllers. It is a toothing-stone mono sensor. Maximum 12 notes.
2 : A forum : http://soj.mesdiscussions.net/soj/Elect ... 4008_1.htm
I met yves29 who have got a laser harp with 12 sensor. We will do a concert near paris on 22 september whith a lot a laser effect and his harp (we dont play jarre's music, it's what we have composed).
He told me that he was working whith another guy to make a laser harp mono sensor whithout computers, programmable.
All theses harp works whith one laser. The various beams are obtained with a sweeping. The ideal is the scanner, (harpelaser.free.fr work with an engine step by step less expensive, but less better).
The velocity can be calculated on 2 first cycles of the scanner. Differences in luminosity between the two positions. From the 3rd cycle, these values can correspond as a controller midi for example. But it's not easy to do.
See you
Fabrice29