Yes. I see the website is down. Thanks. It's up now.
Actually a Raspberry Pi + a USB sound device + a LaserBoy Correction Amp is all you need to do what your device does.
Well, I haven't written a remote control interface for it, so using a cell phone to control it would be a bit of a challenge, but VNC would make it accessible.
With that you would have 8 channels of 16 bit 48KHz DAC. It could also have an external HD for terabytes of show material.
You don't need LaserBoy to play wave files. You just need it to make them from ILDA, DXF or TXT.
But you can run LaserBoy on a Raspberry Pi!
I suspect your device has something similar to the LaserBoy Correction Amp. It adds a fixed offset null voltage to the output of every DAC channel and gives it enough gain to drive a laser projector.
The modification to the sound device is just to tack wires on the DAC side of the DC blocking caps.
http://laserboy.org/forum/index.php?topic=561.0
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manifesto?
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If you have written all the code to convert ILDA to wav with optimization and all that, you should consider including LaserBoy wave formatting data. It's some stuff added to the wav header and binary markers in the color channels, so a wav can be opened in LB or any other app that knows what to look for and you get your frames back with proper time / color alignment. This makes wav a fully functional storage format for laser vector art.