DIY HD Tracks from mint LPs?


I have 1500 mint Lps (no pops, clicks, or noise) and wish to make my own 96kHZ/24Bit files.

Is the technology there yet?

The bulk of HD Tracks are of Lps I already own. Why pay BIG$ to HD Tracks for each album, that I already have?

What do you need, If you have a High End turntable, MC cartridge, phono stage, preamp, as a source?

What DAC/Computer/software is needed? I have a 2011 iMac, 16 GB, 2009 Mac Mini, 4GB, and 2010 MacBook Pro, OWC SSD, 8GB.

HD Tracks are after all, just "Digital" copies of the analog master tapes, at best. What do they do, that I can't, at home, for a few thousand bucks?

Has anyone had success doing this? Is it worth the effort?
don_c55
This sounds like a great solution for me w/ out spending $600 or more on a inline recorder.

what cables are you using between preamp and Zoom?
I use a Korg MR2000S. It will record/archive your analog input in DSD at up to 1 bit/2.8 MHz or even 1 bit/5.6 MHz! The Audiogate software that comes with it can then covert down to FLAC at up to 24bit/192KHz, and also to WAV, ALAC (apple lossless), WMA, MP3, AAC, etc. at a variety of bit depths and sample rates.

The Audiogate software also lets you divide and combine files so you can record an entire LP side and then split the songs later, instead of having to push a button at the end of every song.
I've been doing this for the past few years, but only for LPs that are rare / out of print / not available via any other medium. As Mlsstl notes above, this is not that same as going from a master tape to digital as there are all the vinyl steps in this path. That said, some recordings, i.e., the Columbia 360 LPs, do sound incredible when captured this way. As Sevende suggests, take the output from your phono pre-amp directly into the input of your ADC. In my case I take the balanced outputs of my Xono pre-amp into an Apogee Rosetta 200 ADC / Symphony system. I use Peak software for capture but there are many good programs out there. And, as ART says, record entire sides at once and if you want separate tracks do that as a second step.

I find there is a different mindset to this than simply listening to LPs as you'll being creating (at some level) an "archival" copy. So, a few more suggestions:

1. Turntable setup becomes even more critical. As most capture programs provide some type of metering, by using a good analog test LP you should be able to confirm matched channel levels. More sofisticated metering, e.g., phase and spectrum displays will let you align things even more precisely. Of course, these must be confirmed with listening tests before you start recording!

2. Check the turntable speed right before you begin recording to ensure it's dead on.

3. Input level to the ADC is absolutely critical and will vary quite a bit from LP to LP. You'll want to set the input level as high as possible so that the very loudest passage on the LP does not hit clipping. Be careful not to confuse the loudest passage with a click or pop as these will peg the input meters.

4. Once levels are set and confirmed and you're ready to go give the LP one finally cleaning with your record cleaning machine. Also clean stylus before recording each side.

5. I record at 96KHz / 24 bit as you suggest. However, if you need to down convert a copy to burn to a CD or for iDevices, than I recommend you convert from 24 bit to 16 bit FIRST and then do the sample rate conversion to 44.1 KHz. This is counter intuitive but, to my amazement, many listening tests support this workflow.

6. Even the cleanest LPs will have a few pops and clicks when you capture them. NEVER use any of the automatic click removal / noise reduction programs to get rid of them! As good as some of these have become, they're still not good enough -- they all leave artifacts, e.g. robing the air from around the notes. If the pops and clicks bother you then go in and paint each one out of the waveforms by hand.

7. If you want separate tracks create them after you've done the above.

8. Be prepared to spend a lot of time doing this. Having spent over a year getting every aligned correctly and sounding it's best, I find it now takes me 4 to 6 hours per LP.

Have fun!
Dean
I recall reading somewhere to put the turntable/cartridge output directly into the mic input on the computer, bypassing phono preamp completely. Add RIAA compensation later or whatever curve works besr for you. Takes special program? I have not tried this yet but appeals to me as my phono pre is only so-so. Good luck to you on this project and let us know what you learn; Mike.