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Skeptoid: Digital vs Vinyl, Podcast casts its skeptical eye on digital audio
rick.hughes
post Mar 28 2012, 11:59
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Skeptoid: Digital vs Vinyl
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kraut
post Apr 7 2012, 03:56
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QUOTE
Most of the heat is produced inside the groove walls by the pressure of the stylus deforming the vinyl, not the friction of the stylus against the walls. The presence of a cooling agent has little effect.


What does it matter where the heat is produced? If the groove wall gets deformed, the resultant heat will still be dissipated faster with a cooling agent present than without. And the cooling agent is in the groove after all. I do not understand your argument.

By your logic water surrounding a combustion motor cylinder will not help dissipate the heat because the heat is produced inside the cylinder?

QUOTE
For me, the evidence was that Discwasher found large quantities of acetic acid on the disc surface


Evidence by Discwasher is tainted, biased and therefore useless. Show me proper analysis of what is found with proper ph readings and I might be convinced. Other than that - hearsay.

QUOTE
including 85% polyvinyl chloride (PVC), 15% polyvinyl acetate (PVA), antistatic agents, dyes, stabilizers (heavy metals such as lead


I tried to find evidence concerning the composition of record grade vinyl, and could not find among the sources (several google pages) any that clearly defines what is included, even the one I linked to is fairly vague.
I looked into the chemistry of polymer vinyl acetate and some references were made to various products using this in conjunction with chlorinated form of vinyl polymer, but no clear indication of its use.
The author linked to fails to supply any sources, so I will not accept his statements just now. The same goes for Wikipedia, no sources linked to support that statement.


Jean Hiraga, 1978: having read statements concerning tube amps by Hiraga, I have some difficulty accepting him as a serious source.

QUOTE
The plasticiser dissolves the paint and welds the cable and paint surface together, peeling the paint when the cable is moved


I have no experiential references to your statement. I do not know what you are talking about.
The worst thing that I found regarding plasticizers is the deteriorating foam of old SLR cameras ( I collect pentax slrs, for use, not show) >40 years old.



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splice
post Apr 7 2012, 10:26
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QUOTE (kraut @ Apr 6 2012, 19:56) *
... What does it matter where the heat is produced? If the groove wall gets deformed, the resultant heat will still be dissipated faster with a cooling agent present than without. And the cooling agent is in the groove after all. I do not understand your argument.


How fast the heat is dissipated doesn't affect the damaged caused. Take two identical discs. Play a blowtorch over them for a few seconds. Throw a bucket of water over one, leave the other to air cool. Which one suffers the most damage? It could also be argued that rapid cooling increases the stresses and damage to the vinyl, as it does to many other materials.

QUOTE (kraut @ Apr 6 2012, 19:56) *
By your logic water surrounding a combustion motor cylinder will not help dissipate the heat because the heat is produced inside the cylinder?


Your logic is faulty. The combustion temperature in the cylinder will be the same whether there is a water jacket or not, just as the groove wall temperature reaches the same level whether wet played or not. Where your logic falls apart is when you count the number of cycles per second. Does a motor cylinder need water cooling if it only experiences one combustion cycle per 20 minutes or so?

QUOTE (kraut @ Apr 6 2012, 19:56) *
Evidence by Discwasher is tainted, biased and therefore useless. Show me proper analysis of what is found with proper ph readings and I might be convinced. Other than that - hearsay.


Discwasher had to prove that the effect was real and that their product minimised it in order to obtain their patents. You, on the other hand, have only your own experience with no evidence. For example, your record collection is not duplicated, with one set played wet and one dry, with logging of the differences over the years.

QUOTE (kraut @ Apr 6 2012, 19:56) *
Jean Hiraga, 1978: having read statements concerning tube amps by Hiraga, I have some difficulty accepting him as a serious source.


You appear to be unaware of his work on the interactions between the various parts of a turntable playing a record. It was well researched and mathematically rigorous. But it was uncontroversial and therefore unmemorable except to those working in the field. I learnt of his work after finding him quoted as a reference by later workers.

QUOTE
The plasticiser dissolves the paint and welds the cable and paint surface together, peeling the paint when the cable is moved


QUOTE (kraut @ Apr 6 2012, 19:56) *
I have no experiential references to your statement. I do not know what you are talking about.


Your lack of experience with a phenomenon does not mean it does not exist. The effect of PVC sheathed wiring on polystyrene foam is especially annoying to those who collect vintage gaming consoles and home computers. Those still with their original packaging are sought after, but all too often they were used and then packed away with the cables in contact with the polystyrene packaging popular at the time. The resulting damage lowers their value. As for the plasticisers in cling film, you can start here: http://en.wikipedia.org/wiki/Plastic_wrap and continue with the references at the bottom of the article.

QUOTE (kraut @ Apr 6 2012, 19:56) *
The worst thing that I found regarding plasticizers is the deteriorating foam of old SLR cameras ( I collect pentax slrs, for use, not show) >40 years old.


I reluctantly retired my own SLR when the foam on the mirror frame disintegrated. Even after a thorough cleaning, occasional flecks kept appearing on the film so I couldn't trust it for critical work any more. Deteriorating foam has had a large effect on the audio scene as well. It's also a problem in the vintage mainframe and personal computer world, where foam was often used for sound deadening and air flow management.

This post has been edited by splice: Apr 7 2012, 10:30


--------------------
Regards,
Don Hills
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Posts in this topic
- rick.hughes   Skeptoid: Digital vs Vinyl   Mar 28 2012, 11:59
- - Fandango   This thread just reminded me that I haven't li...   Mar 28 2012, 21:29
- - Woodinville   Hmm, we shall see how he copes with my comment tha...   Mar 28 2012, 22:45
- - Fandango   Didn't he dodge the big question anyway? He sa...   Mar 29 2012, 03:38
|- - krabapple   QUOTE (Fandango @ Mar 28 2012, 22:38) Did...   Mar 29 2012, 17:22
|- - mzil   QUOTE (krabapple @ Mar 29 2012, 11:22) In...   Mar 29 2012, 22:23
|- - knutinh   QUOTE (mzil @ Mar 29 2012, 23:23) What I...   Mar 30 2012, 07:36
||- - mzil   QUOTE (knutinh @ Mar 30 2012, 01:36) Or, ...   Mar 30 2012, 08:33
||- - greynol   Ignoring CDDA, if you are attempting to suggest th...   Mar 30 2012, 15:56
|||- - mzil   QUOTE (greynol @ Mar 30 2012, 09:56) Igno...   Mar 30 2012, 18:04
|||- - dhromed   QUOTE (mzil @ Mar 30 2012, 18:04) I'm...   Mar 30 2012, 20:13
|||- - greynol   QUOTE (mzil @ Mar 30 2012, 10:04) I'm...   Mar 30 2012, 21:25
||- - Arnold B. Krueger   QUOTE (mzil @ Mar 30 2012, 03:33) QUOTE (...   Apr 3 2012, 14:45
||- - mzil   QUOTE (Arnold B. Krueger @ Apr 3 2012, 08...   Apr 3 2012, 23:32
|- - krabapple   QUOTE (mzil @ Mar 29 2012, 17:23) Althoug...   Mar 31 2012, 22:18
|- - mzil   QUOTE (krabapple @ Mar 31 2012, 16:18) Bu...   Apr 1 2012, 02:22
- - hlloyge   QUOTE (Fandango @ Mar 29 2012, 03:38) I d...   Mar 29 2012, 09:44
|- - Nessuno   QUOTE (hlloyge @ Mar 29 2012, 09:44) QUOT...   Mar 29 2012, 11:26
||- - Arnold B. Krueger   QUOTE (Nessuno @ Mar 29 2012, 06:26) QUOT...   Apr 3 2012, 14:42
|||- - Nessuno   QUOTE (Arnold B. Krueger @ Apr 3 2012, 15...   Apr 3 2012, 17:31
||- - splice   QUOTE (Nessuno @ Mar 29 2012, 03:26) QUOT...   Apr 17 2012, 02:47
|- - Woodinville   QUOTE (hlloyge @ Mar 29 2012, 01:44) QUOT...   Mar 30 2012, 02:01
|- - knutinh   QUOTE (Woodinville @ Mar 30 2012, 03:01) ...   Mar 30 2012, 07:55
|- - splice   QUOTE (knutinh @ Mar 29 2012, 22:55) If I...   Mar 31 2012, 00:38
- - Fandango   Right, besides one could analyze the recording for...   Mar 29 2012, 21:13
|- - Pio2001   QUOTE (Fandango @ Mar 29 2012, 22:13) But...   Sep 15 2012, 16:45
|- - hlloyge   QUOTE (Pio2001 @ Sep 15 2012, 17:45) Last...   Sep 15 2012, 19:09
- - mzil   Dhromed, Thanks! Great respone, but when I wen...   Mar 30 2012, 21:28
- - Woodinville   Just want to point out that the biggest component ...   Mar 31 2012, 23:10
|- - Arnold B. Krueger   QUOTE (Woodinville @ Mar 31 2012, 18:10) ...   Apr 3 2012, 14:50
|- - Nessuno   QUOTE (Woodinville @ Apr 1 2012, 00:10) H...   Apr 5 2012, 07:59
|- - Engelsstaub   QUOTE (Nessuno @ Apr 5 2012, 01:59) ...ev...   Apr 5 2012, 15:04
|- - krabapple   QUOTE (Engelsstaub @ Apr 5 2012, 10:04) I...   Apr 5 2012, 17:55
- - kraut   QUOTE Then there is the FM distortion caused by .....   Apr 3 2012, 17:52
|- - Woodinville   QUOTE (kraut @ Apr 3 2012, 09:52) QUOTE [...   Apr 4 2012, 06:19
|- - stephan_g   QUOTE (kraut @ Apr 3 2012, 17:52) QUOTE T...   Apr 4 2012, 22:36
||- - splice   QUOTE (stephan_g @ Apr 4 2012, 14:36) ......   Apr 5 2012, 01:45
||- - Woodinville   QUOTE (splice @ Apr 4 2012, 17:45) Many n...   Apr 5 2012, 03:53
|- - Arnold B. Krueger   QUOTE (kraut @ Apr 3 2012, 12:52) QUOTE T...   Apr 6 2012, 14:52
- - kraut   QUOTE Perhaps you should actually read up on the r...   Apr 4 2012, 15:59
|- - Woodinville   QUOTE (kraut @ Apr 4 2012, 07:59) QUOTE P...   Apr 5 2012, 03:50
- - kraut   QUOTE [Having said that, playing vinyl twice insid...   Apr 6 2012, 06:28
|- - splice   QUOTE (kraut @ Apr 5 2012, 21:28) QUOTE [...   Apr 6 2012, 07:44
||- - DonP   QUOTE (splice @ Apr 6 2012, 02:44) Lo and...   Apr 6 2012, 14:54
|- - Nessuno   QUOTE (kraut @ Apr 6 2012, 07:28) And if ...   Apr 6 2012, 07:56
- - kraut   QUOTE Where is the proof? Just claims pulled out o...   Apr 6 2012, 07:37
|- - Woodinville   Since I am not going to go buy an expensive, obsol...   Apr 6 2012, 10:42
|- - 2Bdecided   QUOTE (kraut @ Apr 6 2012, 07:37) My expe...   Apr 6 2012, 12:50
- - kraut   I play with a mixture with distilled water and 99%...   Apr 6 2012, 08:12
|- - splice   QUOTE (kraut @ Apr 5 2012, 23:12) I play ...   Apr 6 2012, 12:18
- - greynol   The topic at hand is not about the manner in which...   Apr 6 2012, 08:23
- - krabapple   If you're a masochist there's always this ...   Apr 6 2012, 20:23
- - krabapple   and, btw, the AES e-library is free to search. Re...   Apr 6 2012, 20:49
|- - Arnold B. Krueger   QUOTE (krabapple @ Apr 6 2012, 15:49) and...   Apr 8 2012, 12:54
|- - Woodinville   QUOTE (Arnold B. Krueger @ Apr 8 2012, 04...   Apr 8 2012, 22:00
|- - krabapple   QUOTE (Arnold B. Krueger @ Apr 8 2012, 07...   Apr 9 2012, 06:08
- - kraut   QUOTE To determine the actual deformation-force re...   Apr 7 2012, 00:20
|- - splice   QUOTE To determine the actual deformation-force re...   Apr 7 2012, 02:14
|- - Engelsstaub   QUOTE (splice @ Apr 6 2012, 20:14) ...I r...   Apr 7 2012, 10:37
- - kraut   QUOTE Most of the heat is produced inside the groo...   Apr 7 2012, 03:56
|- - Woodinville   QUOTE (kraut @ Apr 6 2012, 19:56) I have ...   Apr 7 2012, 04:16
||- - kraut   QUOTE (Woodinville @ Apr 6 2012, 20:16) Q...   Apr 7 2012, 06:53
||- - Woodinville   QUOTE (kraut @ Apr 6 2012, 22:53) The sam...   Apr 7 2012, 08:15
|- - splice   QUOTE (kraut @ Apr 6 2012, 19:56) ... Wha...   Apr 7 2012, 10:26
|- - Nessuno   QUOTE (splice @ Apr 7 2012, 11:26) Deteri...   Apr 7 2012, 11:31
|- - Woodinville   QUOTE (Nessuno @ Apr 7 2012, 03:31) QUOTE...   Apr 7 2012, 21:36
- - kraut   Just a last note: I know that my decades long expe...   Apr 7 2012, 07:59
- - splice   I feel a sense of regret that the CD came along wh...   Apr 9 2012, 14:04
- - pdq   @splice: That's an awful lot of conjecture, an...   Apr 9 2012, 16:54
|- - splice   QUOTE (pdq @ Apr 9 2012, 08:54) @splice: ...   Apr 9 2012, 22:03
|- - knutinh   QUOTE (splice @ Apr 9 2012, 23:03) We wer...   Apr 9 2012, 22:44
|- - pdq   QUOTE (splice @ Apr 9 2012, 17:03) QUOTE ...   Apr 10 2012, 15:44
|- - splice   QUOTE (pdq @ Apr 10 2012, 07:44) ... If s...   Apr 10 2012, 21:54
|- - Arnold B. Krueger   QUOTE (pdq @ Apr 10 2012, 10:44) If someo...   Apr 11 2012, 16:14
- - splice   @-h, I happen to agree with almost everything you ...   Apr 9 2012, 23:04
|- - knutinh   QUOTE (splice @ Apr 10 2012, 00:04) @-h, ...   Apr 9 2012, 23:28
|- - Woodinville   QUOTE (knutinh @ Apr 9 2012, 15:28) I...   Apr 10 2012, 04:58
|- - knutinh   QUOTE (Woodinville @ Apr 10 2012, 05:58) ...   Apr 10 2012, 09:16
|- - Nessuno   QUOTE (knutinh @ Apr 10 2012, 10:16) We k...   Apr 10 2012, 10:56
|- - knutinh   QUOTE (Nessuno @ Apr 10 2012, 11:56) True...   Apr 10 2012, 11:52
||- - Nessuno   QUOTE (knutinh @ Apr 10 2012, 12:52) I sh...   Apr 10 2012, 18:09
|- - DonP   QUOTE (Nessuno @ Apr 10 2012, 05:56) True...   Apr 10 2012, 16:18
- - Engelsstaub   My system is by no means exotic nor is it expensiv...   Apr 9 2012, 23:28
- - kraut   "To determine the actual deformation-force re...   Apr 10 2012, 04:58
|- - greynol   You may want to look up the word predominant. I d...   Apr 10 2012, 05:07
|- - Woodinville   QUOTE (kraut @ Apr 9 2012, 20:58) Having ...   Apr 10 2012, 05:28
- - kraut   QUOTE as is your vile defamation of those who have...   Apr 10 2012, 06:09
- - pdq   Say what you will about two channels, but I grew u...   Apr 10 2012, 12:54
- - lvqcl   Don't know about Soundstream... found this: ht...   Apr 10 2012, 16:39
- - pdq   Only in the world of vinyl would 1% THD be referre...   Apr 17 2012, 13:34
|- - Arnold B. Krueger   QUOTE (pdq @ Apr 17 2012, 08:34) Only in ...   Apr 17 2012, 13:43
- - Pio2001   Yes, that is something that I noticed too. Never l...   Sep 15 2012, 19:31
|- - mzil   On some receivers/preamps the record out selector ...   Sep 16 2012, 00:57
- - krabapple   For us non-Francophones, here's Google Transla...   Sep 16 2012, 18:22
|- - mzil   QUOTE (krabapple @ Sep 16 2012, 13:22) If...   Sep 16 2012, 21:02
||- - krabapple   A disadvantage to any method involving LP is the l...   Sep 17 2012, 16:40
|- - Pio2001   QUOTE (krabapple @ Sep 16 2012, 19:22) Fo...   Sep 16 2012, 21:14
|- - krabapple   QUOTE (Pio2001 @ Sep 16 2012, 16:14) We c...   Sep 17 2012, 16:49
- - Pio2001   No, I mean that I observed the same distortion art...   Sep 17 2012, 22:23
- - robbo1802   Hello Pio, It has been a long time, I think I las...   Sep 27 2012, 08:03


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