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Capturing 78 records on iMac computer
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tg [RIP] View Drop Down
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Joined: 19 Jan 2008
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Points: 1866 		Post Options Post Options   Thanks (0) Thanks(0)   Quote tg [RIP] Quote  Post ReplyReply Direct Link To This Post Posted: 18 Jan 2013 at 4:32pm

Quote I am very reluctant to introduce another phono stage ....

It seems that my previous attempt to explain that the existence of this does not necessitate its use, may have been overlooked in the flurry of activity.

eg - just as a preamp may have multiple inputs including a phono input it does not mitigate against using a better phono stage fed direct to a line input leaving the builtin phono stage completely out of the relevant circuit.

The interface to which I referred offers a number of input options, one of which is a phono input, others are microphone, instrument and pure line-level.

Graham, we are all most interested in what you can come up with, my main question on that is what you may be considering in way of input level control.



Edited by tg - 18 Jan 2013 at 4:36pm
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BobC View Drop Down
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Points: 23 		Post Options Post Options   Thanks (0) Thanks(0)   Quote BobC Quote  Post ReplyReply Direct Link To This Post Posted: 18 Jan 2013 at 4:33pm
What you're proposing sounds exactly the solution for me. Are you suggesting that I wait until you have developed your solution? If so, I am happy to do that if it gets me what I want to achieve. Any idea how long that might be or should I just watch this space? Bob
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Points: 23 		Post Options Post Options   Thanks (0) Thanks(0)   Quote BobC Quote  Post ReplyReply Direct Link To This Post Posted: 18 Jan 2013 at 4:37pm
Thanks for clarification. My question certainly does seem to have raised a flurry of activity. All good stuff, though, and there seem to be a number of options available and, as you say, Graham's solution being most interesting to me. Bob
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Points: 16298 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Graham Slee Quote  Post ReplyReply Direct Link To This Post Posted: 18 Jan 2013 at 4:47pm
Originally posted by tg tg wrote:

Graham, we are all most interested in what you can come up with, my main question on that is what you may be considering in way of input level control.


A real potentiometer - log (audio) taper arranged just like a volume control - should cover most extremes.

Originally posted by BobC BobC wrote:

Any idea how long that might be or should I just watch this space? Bob


I daren't suggest when because my to-do list is growing by the minute. Then again I am aware that if things are dragged out too long people get bored and look around for other ways.

I understand that if you are transferring lots of discs you want to get it right once only. And I remember the comments of an early Jazz Club owner who did transfers for his living. He threw a wobbly at the fact he felt he had to redo his month's work, knowing how better his work now sounded. OK, I'm sounding like a DG salesman... I'd better shut up.
That none should be able to buy or sell without a smartphone and the knowledge in how to use apps
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Phil Bishop View Drop Down
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Points: 128 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Phil Bishop Quote  Post ReplyReply Direct Link To This Post Posted: 19 Jan 2013 at 9:05am
Bob,

Just come across your thread. I went through this pain a year or so ago so here's my experience.

The first thing I should say is I found the budget phono stages with USB made by the likes of Rega and Nad very poor. That was just my experience, others may differ. Also, of course, they don't offer the variable EQ you want (although that could be applied in the software potentially).

My source was lovely old Lenco turntables with GE variable reluctance cartridges. These fed a Slee Revelation phono stage with appropriate EQ settings. Now the critical bit.

The best ADC I found was a Roland Quad Capture - a pro tool that costs about £150. You need some adapters to feed the XLR inputs from the Revelation outputs but these are readily available.

http://www.rolandus.com/products/details/1166

The software I used (and still use) was VinylStudio which I find fantastic once you have got used to it.

The results were superb.

I have now given up on 78's as it was taking up too much of my time and modern vinyl is more available to me, but I am still digitising.

Cheers

Phil


Edited by Phil Bishop - 19 Jan 2013 at 9:06am
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morris_minor View Drop Down
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Points: 6017 		Post Options Post Options   Thanks (0) Thanks(0)   Quote morris_minor Quote  Post ReplyReply Direct Link To This Post Posted: 19 Jan 2013 at 10:32am
Originally posted by Graham Slee Graham Slee wrote:

My USB ADC design features these important items but if there are no takers I'll just put it in a Gram Amp 2SE and call the resulting product something else.
Now, a Revelation with an ADC and RCA, USB and SPDIF output would be the canine's gonads , as it were....

Can I be first in the queue, please?
Bob

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Points: 23 		Post Options Post Options   Thanks (0) Thanks(0)   Quote BobC Quote  Post ReplyReply Direct Link To This Post Posted: 19 Jan 2013 at 9:37pm
Hi Phil.  Thanks for sharing your experience of the pain in trying to solve my digitizing of 78s problem.  As you can see from the helpful inputs from forum members this is not straightforward to sort.

I share your view about some of the USB phono stages and it is because I am dissatisfied with the quality of my NAD PP3i that I am looking for something better.  Your suggestion of the Roland Quad-Capture is an interesting one (although inflation has driven the price up a bit from your £150). I had a quick look at the spec on the internet and it certainly looks like it should deliver the sort of quality I am looking for. So, I will look into this further.

I haven't looked at Vinyl Studio for some time (which comes packaged with the NAD preamp) and for editing currently use a combination of Audacity with an equalisation plug-in specifically for 78 rpm records and ClickRepair and DeNoise for noise removal (Audacity is rather heavy handed in these areas for me). However, with the Graham Slee phono stage I am considering the Audacity filters wouldn't be required.

Thanks very much for your helpful suggestion. Regards, Bob
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