Absolutely, but ...
We are talking about transfer and "dubbing" for professional or archival purposes.
What about a situation like Jan's, where he wants to enjoy his 78's with less crackle? I'm surprised
no one has built a preamplifier, intended for playback (but why not add a SPDIF or USB output so one
could put their preferred playback sounds into their iPod or other portable digital system?), that
includes real-time DSP. It seems you could license ClickRepair pretty cheaply (given the retail
price to buy the software), so you don't need to go and spend a fortune on better-branded and
more-detailed software. I'm talking about just for listening enjoyment, not for hyper-sensitive
archival use. You'd have your EQ curves and hi-/lo-pass stuff in the analog realm, then go A-D with
any of the many reasonably-priced chips available today, probably want a higher-than-CD sampling
rate and definitely a 24-bit depth. Then apply DSP in real time and, for the listening system, go
back D-A but also send the digital to a SPDIF transmitter and perhaps a USB interface, so a person
could make a transfer of the output and/or feed their favorite DAC. You'd be able to adjust the
parameters of the DSP via encoder knobs on the front panel. This may be anathema to analog diehards,
but many less-brittle folks might appreciate and use a good execution of this concept.
-- Tom Fine
----- Original Message -----
From: "Mark Durenberger" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Sunday, April 22, 2012 9:55 AM
Subject: Re: [ARSCLIST] Reducing crackle on 78s analogue and digital
> And STEP 4 is to take it to digital with a good A/D engine...straight across...without attempting
> ANY electronic "restoration" on the way.
> Mark Durenberger
> From: "Tom Fine" <[log in to unmask]>
>> This is why I always argue that STEP 1 in acquiring and tranferring grooved disks should be to
>> find the best-condition copy of the item that you can. And STEP 2 is to properly clean that item
>> so it plays as well as possible. STEP 3 would be to make sure you have the proper needle, that
>> it, too, is clean and un-damaged and that you have a reliable turntable and good preamp with the
>> proper EQ curve available.