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How the Internet Archive digitizes 78rpm records

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Re: How the Internet Archive digitizes 78rpm records

#11
post #6

I'm a little surprised to learn that they use normal styluses instead of reading the grooves optically.

More than that, they use 4 different styluses and let you choose which one you think sounds best for a particular record. I think it's kind of sad that this is a purely volunteer effort and not an official effort of the Library of Congress.

I'm on the opposite side; I think it's an amazing example of private actin for a public service.

Re: How the Internet Archive digitizes 78rpm records

#12
post #3

I thought there was something in the early 2000s that used a laser (an array of them, actually) to map the grooves on a vinyl (or wax) record with perfect precision that allowed for the virtual audio processing of the record in higher quality than any physical stylus or pre-amp system could deliver. (There was also the side-benefit that the reading process didn't involve physical wear on the record or cylinder to opt…

I suspect you really in fact do want to record the audio as it was intended to be played back. With the mass of the tone arm, the tracking and such as the tone arm swings closer to the inner radius of the disc, the RIAA equalization....

Seems if you strictly are extracting the topography of the record ... good for printing a new one, but would require all kinds of simulation to playback accurately?

Re: How the Internet Archive digitizes 78rpm records

#13

I'm a little surprised to learn that they use normal styluses instead of reading the grooves optically.

Any dirt in the grooves screwed up the playback in the case of using a laser. Remember the pits that are read on CD/DVD are under a clear coating and cannot get dirt in them.

Re: How the Internet Archive digitizes 78rpm records

#14

It's worth noting that the Internet Archive are always on the lookout for more records to digitize, so if you (or someone you know) has a collection and wants to see them go to a good home where they'll be preserved, you can donate them [1] to the Internet Archive (they also take 33/45rpm records, books, CDs, etc...). (I'm not affiliated with the Internet Archive) [1] https://help.archive.org/hc/en-us/articles/360017…

I don't know why I didn't think to check into this sooner, but I inherited my grandfather's record collection that is >5,000 records, and I just couldn't bear donating it to some random thrift store, and I knew that selling them would just mean someone picking through the collection and leaving the dregs. This is a solution that I've been looking for. I do listen to some of the records, and I enjoy it, but I don't have time to digitize the whole collection, but this is actually a better solution, because now other people will be able to enjoy my grandfather's collection besides my family.

Re: How the Internet Archive digitizes 78rpm records

#15
It's amazing to see how much care and work is put in to efforts like these by people who clearly care about what they're doing.

If corporate America had their way, those records would have had DRM, there'd have been half a dozen different formats, and they'd have stopped working after twenty years.

A silly example, but looking at how records are preserved today, then imagining how media of today might be preserved for a century from now, should be something we think about when we're choosing what to buy, yet most people keep buying from companies that just disable our media whenever it benefits them.

Re: How the Internet Archive digitizes 78rpm records

#16

I'm a little surprised to learn that they use normal styluses instead of reading the grooves optically.

These are not "normal styli" at least not for the old shellac records. It was very educational to watch this Techmoan video - https://youtu.be/AYn7aZZBMRA - and learn that the original shellac records were harder than the steel styli; these wore down in one or two playings and so were bought in bulk, and the tracking force was on the order of 100 grams.

Why does this matter? Because it probably keeps down the fine high-frequency crackle from very minor dust and surface imperfections. But I can see that you wouldn't subject a precious antique 78 to that kind of playback these days.

Re: How the Internet Archive digitizes 78rpm records

#17
Records from this era (1898-1950s) had at least 2 different groove widths. If the playback stylus is thicker than the groove, the record is damaged. This is what has prevented me from listening to my great-grandparents' collection. Every time I go to purchase 78 RPM styli, I'm dumbfounded at the options and don't know which stylus to use for each record.

Re: How the Internet Archive digitizes 78rpm records

#18

It's worth noting that the Internet Archive are always on the lookout for more records to digitize, so if you (or someone you know) has a collection and wants to see them go to a good home where they'll be preserved, you can donate them [1] to the Internet Archive (they also take 33/45rpm records, books, CDs, etc...). (I'm not affiliated with the Internet Archive) [1] https://help.archive.org/hc/en-us/articles/360017…

I don't know why I didn't think to check into this sooner, but I inherited my grandfather's record collection that is >5,000 records, and I just couldn't bear donating it to some random thrift store, and I knew that selling them would just mean someone picking through the collection and leaving the dregs. This is a solution that I've been looking for. I do listen to some of the records, and I enjoy it, but I don't ha…

Hi, Jason Scott at Internet Archive. Let's talk. Jason@textfiles.com

Re: How the Internet Archive digitizes 78rpm records

#19

I'm a little surprised to learn that they use normal styluses instead of reading the grooves optically.

Any dirt in the grooves screwed up the playback in the case of using a laser. Remember the pits that are read on CD/DVD are under a clear coating and cannot get dirt in them.

They do thoroughly clean each record before it is played.

Re: How the Internet Archive digitizes 78rpm records

#20
post #11
post #6

Earlier quoted context omitted.

More than that, they use 4 different styluses and let you choose which one you think sounds best for a particular record. I think it's kind of sad that this is a purely volunteer effort and not an official effort of the Library of Congress.

I'm on the opposite side; I think it's an amazing example of private actin for a public service.

I'm annoyed that it is necessary though, as the official institution who is tasked with preserving recorded works is failing to do their job.
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