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Mastering Vinyl, Myths, questions, discussion
Axon
post Sep 9 2008, 02:56
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This is a split of a discussion Hancoque and I had, which desperately needs to be elaborated on.

First of all, I've dumped my thoughts on the matter into the Wiki: http://wiki.hydrogenaudio.org/index.php?ti...Vinyl_Mastering. Please comment on it.

A couple of the points there are explicitly worth starting this topic off:
  • There is no consistent, unambiguous way to identify the provenance of a vinyl master. Most methods - but most of all, the zoomed-out waveform plot - are inaccurate in one way or another. Visual examination of clipped samples is fairly telling, but not applicable or effective in all cases. How can a vinyl master be accurately observed as being the same or different as a CD master?
  • Even if a difference exists, whether or not it is audible is another question entirely. IIRC, brickwall limiting of 3-4db, correctly applied, may not be audible. If so, Hancoque's Slayer waveforms might not mean anything, because his peaks are all within 4db of the CD peaks. What audibility thresholds exist for clipped signals?
That said, I may be eating a hearty dinner of crow tonight, as I just examined one of the records I thought was of the same master as the CD (Battles - Mirrored), and I was able to observe pretty strong differences in clipping between the vinyl and CD versions. I'll reply later with some visual examples.
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2Bdecided
post Jun 27 2010, 00:20
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Please read the page we're discussing. This description is of one of many ways of mastering vinyl. It's rare, but does happen, which is partly the subject of the page.

Cheers,
David.
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Arnold B. Kruege...
post Jun 27 2010, 10:25
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QUOTE (2Bdecided @ Jun 26 2010, 19:20) *
Please read the page we're discussing. This description is of one of many ways of mastering vinyl. It's rare, but does happen, which is partly the subject of the page.


I just read the wiki, and what is says does not change what I just said.

The wiki looks to me like it was written by someone who did academic-style research heavily weighted on internet chatter, It seems to dealing with a limited set of misapprehensions. The author does not seem to have the kind of understanding that would come from a good understanding of how vinyl works and its limitations.

For example it mentions elliptic filters as an explantion for bass summing. Elliptic filters are just a kind of filters like Butterworth filters. They have steep slopes. There may have been a popular implementation of bass summing that was based on elliptic filters, but that choice was irrelevant to the basics of the process wihich was to minimize vertical modulation because vertical modulation was more distortion prone and had far more limited dynamic range.

Another example:

Under "How many different ways can a CD master differ from a vinyl master?"

"The vinyl master may be sourced from a 24-bit version of the CD master."

If a 24 bit master exists, then the CD was almost certainly sourced from it as well. There would rarely if ever be any difference in this regard.

Bottom line, this wiki needs so much work that it would be difficult to do it via a posting to HA because of HA's limit on blocks of quoted text.

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Posts in this topic
- Axon   Mastering Vinyl   Sep 9 2008, 02:56
- - Hancoque   I have to admit: You are right. The vinyl version ...   Sep 9 2008, 21:49
|- - Glenn Gundlach   QUOTE (Hancoque @ Sep 9 2008, 12:49) I ha...   Sep 10 2008, 05:46
- - Axon   Bump for massive schadenfreude at Gearslutz, where...   Jun 22 2010, 01:13
- - analog scott   QUOTE (Axon @ Sep 9 2008, 02:56) This is ...   Jun 22 2010, 13:22
- - analog scott   "There's this idea floating around that v...   Jun 22 2010, 13:27
- - 2Bdecided   Axon, The wiki page says "The CD and vinyl m...   Jun 23 2010, 12:19
- - analog scott   QUOTE (2Bdecided @ Jun 23 2010, 12:19) Ax...   Jun 23 2010, 23:12
|- - Arnold B. Krueger   QUOTE (analog scott @ Jun 23 2010, 18:12)...   Jun 26 2010, 10:43
- - 2Bdecided   Please read the page we're discussing. This de...   Jun 27 2010, 00:20
|- - Arnold B. Krueger   QUOTE (2Bdecided @ Jun 26 2010, 19:20) Pl...   Jun 27 2010, 10:25
|- - 2Bdecided   QUOTE (Arnold B. Krueger @ Jun 27 2010, 10...   Jun 28 2010, 11:05
|- - Arnold B. Krueger   QUOTE (2Bdecided @ Jun 28 2010, 06:05) QU...   Jun 28 2010, 11:25
- - analog scott   QUOTE (Arnold B. Krueger @ Jun 26 2010, 11...   Jun 27 2010, 09:13
- - Axon   QUOTE (analog scott @ Jun 22 2010, 07:27)...   Jun 28 2010, 20:07
|- - analog scott   QUOTE (Axon @ Jun 28 2010, 21:07) QUOTE (...   Jun 29 2010, 08:10
||- - cliveb   QUOTE (analog scott @ Jun 29 2010, 08:10)...   Jun 29 2010, 08:39
||- - doctorcilantro   QUOTE (analog scott @ Jun 29 2010, 08:10)...   Sep 2 2010, 05:32
|- - Arnold B. Krueger   QUOTE (Axon @ Jun 28 2010, 15:07) QUOTE (...   Jun 30 2010, 11:48
- - analog scott   QUOTE (cliveb @ Jun 29 2010, 08:39) QUOTE...   Jun 29 2010, 10:20
|- - cliveb   QUOTE (analog scott @ Jun 29 2010, 10:20)...   Jun 29 2010, 11:55
- - analog scott   Since you are looking for comments and the thread ...   Jun 29 2010, 10:51
- - 2Bdecided   I think it's a waste of time to argue that thi...   Jun 29 2010, 10:51
- - analog scott   >> How do you know if a vinyl master is audi...   Jun 29 2010, 11:16
- - analog scott   QUOTE (2Bdecided @ Jun 29 2010, 11:51) I ...   Jun 29 2010, 11:25
|- - 2Bdecided   QUOTE (analog scott @ Jun 29 2010, 11:25)...   Jun 29 2010, 13:20
- - analog scott   QUOTE (cliveb @ Jun 29 2010, 12:55) QUOTE...   Jun 29 2010, 14:06
|- - Arnold B. Krueger   QUOTE (analog scott @ Jun 29 2010, 09:06)...   Jun 30 2010, 14:06
- - analog scott   QUOTE (2Bdecided @ Jun 29 2010, 14:20) QU...   Jun 29 2010, 14:10
|- - 2Bdecided   QUOTE (analog scott @ Jun 29 2010, 14:10)...   Jun 29 2010, 14:57
- - analog scott   QUOTE (2Bdecided @ Jun 29 2010, 15:57) QU...   Jun 29 2010, 18:06
- - krabapple   Wow, can this get MORE silly? I think most of u...   Jun 30 2010, 06:56
|- - botface   QUOTE (krabapple @ Jun 30 2010, 06:56) Wh...   Jun 30 2010, 08:12
- - MichaelW   I was in my local, rather good, secondhand record ...   Jun 30 2010, 07:59
- - analog scott   QUOTE (krabapple @ Jun 30 2010, 07:56) Wo...   Jun 30 2010, 09:01
|- - greynol   QUOTE (analog scott @ Jun 30 2010, 01:01)...   Jul 1 2010, 01:11
- - greynol   I think all he's trying to say is that it...   Jul 1 2010, 00:57
|- - Axon   QUOTE (greynol @ Jun 30 2010, 18:57) I th...   Jul 1 2010, 02:54
||- - greynol   QUOTE (Axon @ Jun 30 2010, 18:54) PREFERE...   Jul 1 2010, 04:06
|- - MichaelW   QUOTE (greynol @ Jul 1 2010, 11:57) I thi...   Jul 1 2010, 05:37
- - Axon   Oh for f*cks sake people. I don't mind pedantr...   Jul 1 2010, 02:18
|- - cliveb   QUOTE (Axon @ Jul 1 2010, 02:18) OK - doe...   Jul 1 2010, 08:38
|- - 2Bdecided   OT-ish, but... QUOTE (Axon @ Jul 1 2010, 02...   Jul 1 2010, 09:37
|- - googlebot   QUOTE (2Bdecided @ Jul 1 2010, 10:37) ......   Jul 1 2010, 11:14
||- - 2Bdecided   QUOTE (googlebot @ Jul 1 2010, 11:14) * I...   Jul 1 2010, 17:08
|- - botface   QUOTE (2Bdecided @ Jul 1 2010, 09:37) OT-...   Jul 1 2010, 11:28
- - Axon   Scott, all flaming aside, I would like to thank yo...   Jul 1 2010, 02:43
|- - analog scott   QUOTE (Axon @ Jul 1 2010, 03:43) Scott, a...   Jul 8 2010, 20:14
- - analog scott   QUOTE (Axon @ Jul 1 2010, 03:43) Scott, a...   Jul 1 2010, 14:21
- - analog scott   QUOTE (MichaelW @ Jul 1 2010, 06:37) QUOT...   Jul 1 2010, 14:40
- - analog scott   QUOTE (2Bdecided @ Jul 1 2010, 10:37) OT-...   Jul 1 2010, 14:55
|- - Arnold B. Krueger   QUOTE (analog scott @ Jul 1 2010, 09:55) ...   Jul 2 2010, 13:13
- - splice   Article in the NY Times about Tom Petty's ...   Jul 2 2010, 01:24
|- - Arnold B. Krueger   QUOTE (splice @ Jul 1 2010, 20:24) Articl...   Jul 2 2010, 13:55
|- - 2Bdecided   QUOTE (splice @ Jul 2 2010, 01:24) Articl...   Jul 7 2010, 11:17
- - analog scott   For this title a "compressed" CD version...   Jul 5 2010, 16:28
|- - Arnold B. Krueger   Read what I said - my question what about producti...   Jul 6 2010, 20:26
- - analog scott   I read what you said Arny. Not sure how mastering ...   Jul 7 2010, 01:46
- - usernaim   I think it's important to keep the timeline of...   Jul 7 2010, 13:14
- - botface   Nice idea usernaim but trying to generalise like t...   Jul 7 2010, 15:19
|- - splice   QUOTE (botface @ Jul 7 2010, 06:19) Also,...   Jul 7 2010, 22:24
|- - krabapple   QUOTE (splice @ Jul 7 2010, 17:24) Cuttin...   Jul 8 2010, 00:43
|- - botface   QUOTE (splice @ Jul 7 2010, 22:24) QUOTE ...   Jul 8 2010, 09:32
|- - splice   QUOTE (botface @ Jul 8 2010, 00:32) Well,...   Jul 8 2010, 23:30
|- - Arnold B. Krueger   QUOTE (splice @ Jul 8 2010, 18:30) Step 1...   Jul 9 2010, 01:23
|- - analog scott   QUOTE (Arnold B. Krueger @ Jul 9 2010, 02...   Jul 9 2010, 15:39
|- - greynol   QUOTE (analog scott @ Jul 9 2010, 07:39) ...   Jul 9 2010, 18:55
|- - analog scott   QUOTE (greynol @ Jul 9 2010, 18:55) QUOTE...   Jul 9 2010, 19:40
|- - greynol   QUOTE (analog scott @ Jul 9 2010, 11:40) ...   Jul 9 2010, 19:47
|- - analog scott   QUOTE (greynol @ Jul 9 2010, 19:47) QUOTE...   Jul 12 2010, 22:03
- - analog scott   QUOTE (botface @ Jul 7 2010, 16:19) Nice ...   Jul 7 2010, 15:44
- - greynol   You brought these papers up in a direct response t...   Jul 12 2010, 21:24
- - Axon   ..... I probably should be reading this thread, sh...   Jul 14 2010, 00:32
- - Arnold B. Krueger   QUOTE (Axon @ Jul 13 2010, 19:32) ..... I...   Jul 15 2010, 13:59


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