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Analog to Digital Converter for Recording Vinyl to Computer?
Analog to Digital Converter for Recording Vinyl to Computer?
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Old 12th May 2018, 01:41 PM   #11
merlin el mago is offline merlin el mago
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Wich Tascam model for PCM?
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Old 12th May 2018, 02:33 PM   #12
scott wurcer is online now scott wurcer  United States
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I have the DR-60D it was the most cost effective choice (~$170). I use it off of a USB battery pack. I have transferred some well recorded LP's and am happy. It is only 24/96 max and will not record MP3's directly. There might be better choices out there by now.

I have a Fostex FR2LE but the USB interface is no longer recognized by my computer and the 48V phantom power was broken by hot plugging. I used it to record the samples on the Linear Audio web site for my microphone article.
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Old 12th May 2018, 02:55 PM   #13
merlin el mago is offline merlin el mago
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Thank you.
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Old 12th May 2018, 09:32 PM   #14
gofar99 is offline gofar99  United States
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Hi, I use a SIIG CE-S70011-S1. Now discontinued, but can be had for low cost. (there is a clone of it as well that seems to be OK too) They were under $100 when first out. Does 24/96 native and will do 24/192 with software included. I put a Simaudio Moon LP3 in front of it and get super results. Clean up any ticks etc in Audacity. Then save as whatever type and resolution you want (up to the input level naturally). Watch out that Windows and Audacity will try to revert the output to CD quality. PS I tried two different M audios, two different Creatives and one Behringer. The SIIG worked better in my system. A decent PC is a must as the number crunching is not an easy task for some. An A6 or I3 is about the bottom level that will work. Monitoring the digital on the fly is tough on lower ones and the monitored sound being recorded will stutter.
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Old 12th May 2018, 09:38 PM   #15
MarcelvdG is offline MarcelvdG  Netherlands
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You can find a very basic DSD ADC in this thread:

Very basic DSD ADC made with op-amps and logic gates

but I haven't figured out yet how to get the data into a computer.
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Old 12th May 2018, 09:55 PM   #16
scott wurcer is online now scott wurcer  United States
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Quote:
Originally Posted by gofar99 View Post
Watch out that Windows and Audacity will try to revert the output to CD quality.
And they usually win, I just helped one of the mods here. Audacity does not support 24 bit recording for the general plug it in and use it user. Read the threads, they're amusing.

Audacity Forum • View topic - 24-Bit Recording Status
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Old 12th May 2018, 11:32 PM   #17
Jennifer G is offline Jennifer G  United States
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Oh so you record the MM turntable output to the Mic in on the Tascam? I guess you wouldn't supply 48V phantom power then? I didn't realize that Microphone inputs were compatible with phono output.

Wouldn't it sound better from say a Salas pre vs software RIAA?

When you say small box for cartridge termination, does this mean the box's only purpose is for the ground wire coming from the turntable?
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Old 12th May 2018, 11:54 PM   #18
rif is offline rif  United States
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Analog to Digital Converter for Recording Vinyl to Computer?
Schiit makes an adc. I have no experience with it, but probably worth researching. I also have an old art di/o FS, but it doesn't have USB so won't do you any good unless your computer has spdif input.
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Old 13th May 2018, 12:19 AM   #19
scott wurcer is online now scott wurcer  United States
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Quote:
Originally Posted by Jennifer G View Post
When you say small box for cartridge termination, does this mean the box's only purpose is for the ground wire coming from the turntable?
If you're not an experienced DIY circuit type then I would just go with something like Salas' pre it will work fine. I published the info on the impedance converter box in Linear Audio along with how to do the RIAA in Audacity. There is a lot of detail to worry about for those that are fussy most of which matters little to the average listener. If I sat down and detailed again the entire process you would probably not bother even though to me it seems like nothing, so it is best to say all the info is already in the article (I think Jan only charges $1 for a download).

The short story is the USB boxes and field recorders are made for microphone input and do not properly terminate a phono cartridge, but they do in general have low enough noise to simply need a buffer. The buffer has a very high input impedance so you can place the proper cartridge termination at its input (i.e. 47k || 200pF). The buffer drives the input of the recorder, being clever we can use the phantom power built into the recorder to power the buffer rather than a mic.
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Old 13th May 2018, 01:33 AM   #20
gofar99 is offline gofar99  United States
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Hi, In relation to one of the responses. Yes you can do RIAA equalization in Audacity. Unfortunately you will lose some signal to noise ratio in doing so. I tried that a while back and because you are limited (by overload distortion) as to how strong the recorded signal going into the PC is you will forfeit at least 20 db in the S/N as it adjusts the signal to the RIAA curve. If you use a phonograph preamp to feed the PC with an already equalized signal then you will not lose the 20 db. Your ultimate S/N will that of the phono preamp. I thought having the PC do all the work was a neat solution until I heard the results.
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