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Laser Cut Record (version)

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Just last weekend, amandaghassaei published her Laser Cut Record. The work is more than great with a tons of experimentations and descriptions! However, thorough these days, we also prepared to publish our version of Laser Cut Record with prior acoustic information as a part of our "cutting record - a record without (or with) prior acoustic information" project at IAMAS. To be honest, the work is still in its experimental stage and very close to amandaghassaei's work. But we decide to publish it to stimulate the scene (Hope it exists!) and further investigations with a lot of common points and a few differences especially in our codes. Here is our version.
 
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Step 1: Laser Cut Record (version)

As amandaghassaei mentioned, we've already have an instructables of "How to make a record without prior acoustic information" to make an analog record with laser cutter and paper cutter. We've explained the background of our project (include history of analog record) at there. So, here, we simply describe our process with prior acoustic information by following/comparing amandaghassaei's instructables.

The records were cut on a Universal 30 Watt VLS 2.30 with HPDFO (High-Power Density-Focusing Optics) lens  to a theoretical precision of 1000dpi. The bit rate / sampling frequency of the original audio data is 16 bit / 44.1kHz but you could just listen the result around 8 bit / 12 kHz (the number is not well measured, but you could listen the quality) because of the melt on a material by laser beam and the motion of stepping motor (we guess). We've wrote a custom application with Processing to generate a spiral groove with peripheral circle and a center hole in a form of SVG file based on given audio data. The application provides parameters of diameter, sampling rate, rpm, amplitude, line space, and margin for adjustment. The resulted SVG file could be imported in other vector graphics software (e.g Adobe Illustrator, Corel Draw) for laser cutting. We also develop a way to produce a locked groove with audio data without coding, you could see the way at the end of this instructables.

You could see more information at Kazuhiro Jo and Mitsuhito Ando, cutting record - a record without (or with) prior acoustic information, Proceedings of NIME (New Interfaces for Musical Expression) 2013 , 26th-30th, May, 2013 (to be published).

Laser Cut Record - Daisy Bell

Laser Cut Record - Smells Like Teen Spirit

 


Edgar1 year ago
Nice!
Voted on this Project, and went to this Blog-Post:
http://faz-voce-mesmo.blogspot.pt/2013/05/handibot-cnc-nas-obras-e-mandem-vir.html
jojporg (author)  Edgar1 year ago
looks great! thanks for your post!
Edgar jojporg1 year ago
I like to give attribution, and it's fun to collect neat stuff, like that. :)
Vinyl ressurection? WOW Nothing new under the Sun
jojporg (author)  KROKKENOSTER1 year ago
please resurect your own!
mrlunna131 year ago
I love Vinyl records, I hope you get a great sounding record at the end.
Great job!!
jojporg (author)  mrlunna131 year ago
thanks! we also hope so!
Needs a run-out groove.
jojporg (author)  The Lightning Stalker1 year ago
good idea! will add the function. thanks for your suggestion!
nanoBorg881 year ago
I know this will be a lot of work, but I think you'd get better sounding records if a cylindrical coordinate system is used rather than cartesian. Nice to see more than one person approaching the problem though!
Could some sort of mask be fashioned with a tiny aperture lying close to the disk, to improve resolution?
jojporg (author)  nanoBorg881 year ago
Thanks for your suggestion! We'll try and let you know the results. Sorry for the resolution ;-)
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