I'm still here on board.Interesting. The moderators moved this to "The Cutting Edge" and everyone appears to have lost track of it, or suddenly lost interest. Hmmm
Good to see you're still with us, Pio!! The materials involved are exceptionally robust.....as in space craft robust. Which leads to my answer to j_loop....Re archive use. How robust is the result of the process? Tho' imperfect, engraved recordings are as robust as the base material.
I'm subscribed so not matter where this thread goes I'll be there.
I have mused about this a bit the past few days and all I have to show for is as follows:
What are the virtues and/or desires of the optical analogue system for archival purposes? I mean this namely for analogue source material. Would it be considered "truer" to the source and thereby desirable to record companies or the Library of Congress types or do you think they feel just fine with digital storage? If it would pose a 1:1, or close to, clone of a tape master it may have interest since they would no longer have to keep reusing the same master tape every time they want to reissue something and risk degrading the master source. If they would express interest this could be a huge market for the technology and/or service.
re: The aformentioned new suspension system for cartridges: If this would end up as a high compliance and low tracking force system it would be a great addition to the market. The market seems mostly populated with 1.7-2.5g and medium-ish compliance carts. A new 1g, high compliance cart would be a breath of fresh air in my opinion.
Dear oldadc,
I would encourage the use of magnetic fluids in a cartridge because it makes sense to me.There have been so many applications of that technology (shock absorbers),that are fascinating.I would think something amazing could be created using new materials and imagination. Please, please ,please , make something different!
I can not relate at all to optical as analog. Hit me with a sledgehammer, I'm not gonna get it! Practically speaking, ain't nobody buy'n that stuff your sell'n. However , I would hope that someone, somewhere,would invest in your technology, just 'cause!
The old build it and they will come (maybe). I always liked the freak show at the county fair too!
Very similar! Thanks. Very interesting. This would be taking those same master tapes and recording analog optical from them just as this project is making reel-to-reel from them.This thread is very interesting I would be on board for this. I think it would be a very niche product though, with a level of interest similar to something like The Tape Project.
http://tapeproject.com/
Finally found this thread again - very interesting!!!
Sorry if it seems to have gone a wandering. The moderators decided it belonged in the Cutting Edge. Glad you found it again.
Hello Eric, I am just curious about if you have an operating principle for such an idea? cheers!Folks,
After another long hiatus from when I engaged on this board in 2010, I am back with more questions.
Years ago, I was a phonograph cartridge designer at ADC. There is an old thread here in 2010 that has a bunch of that information. It is really quite intriguing that vinyl is seeing such a resurgence and it does tempt me to build a new cartridge design or two. One might be a moving coil similar to the design used in a paper I published in AES from the 1982 Montreaux conference. Another would likely be to use diamagnetic materials to magnetically suspend the cantilever assembly in a stable ferromagnetic/induced diagmagnetic arrangement such that the cantilever isn't actually physically touching anything.
The burning question is.....does anyone care? It would seem that with the resurgence of vinyl, then a re-imagining of cartridge design to take advantage of more modern materials would be welcome (and by that I mean, guys would actually buy them not just say glowing things about them on web boards.....hahaha)
Finally, and much more radically....would anyone actually be interested in a pure optical analog recording technique and medium? I have worked in the laser design business now for the past 24 years and know that a high dynamic range, pure analog recording technique is possible. The materials for recording and reproduction are possible. The only real difficulty is the capitalization (~$100M) required to introduce a new software media format that would allow all of the recording hardware to write/optically those records (the piece equivalent to a vinyl record), the hardware necessary to manufacture in volume all those records, and all the hardware at the consumer level required to play back those recordings. Clearly, I might (and can) do the technology but will have to team with a serious industry giant who would have the financial resources to introduce a new media format.
Would a sufficient number of people care that there would be available an analog technique that would be even more "purist" than vinyl? All of the analog goodness of vinyl without any of the problems of vinyl...
Curious to hear your feedback either encouraging or not....
Thanks,
Eric
Hi. Do you mean for the magnetic suspension? Yes, I do have a preliminary design. One cannot build a stable magnetic levitation using ferromagnetism alone. Earnshaw's Theorem (1842) has proven remarkably robust, probably because it is correct.....lol. One must balance the forces using paramagnetic materials to achieve stability and modern graphitic materials have high induced paramagnetic moments.Hello Eric, I am just curious about if you have an operating principle for such an idea? cheers!