16th Oct 2017, 10:16 am | #201 |
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Re: Audiophoolery. 'Cable Break In' - I never knew that!
And just when you thought that shielded coax was the panacea to interference - Shield Induced Current Noise (SICN) from the professional audio company RANE:
http://www.rane.com/pdf/ranenotes/SC...uced_Noise.pdf These are hard bitten guys - they don't believe in cables sounding different per se - they actually measure things. Their "Rane Notes" are well worth a peruse http://www.rane.com/library.html Craig |
16th Oct 2017, 10:18 am | #202 |
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Re: Audiophoolery. 'Cable Break In' - I never knew that!
The amp in the CD player is built to drive speakers with a potential divider for the head phone output. the spec of the amplifier gives a distortion figure with plenty of "0"s in front for that distortion figure. I bet that is for the headphone output with little load on the output stage.
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16th Oct 2017, 1:52 pm | #203 | ||
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Re: Audiophoolery. 'Cable Break In' - I never knew that!
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16th Oct 2017, 2:01 pm | #204 | ||
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Re: Audiophoolery. 'Cable Break In' - I never knew that!
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Whether we can hear the effect or not is another matter. Chris
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16th Oct 2017, 2:06 pm | #205 | |
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Re: Audiophoolery. 'Cable Break In' - I never knew that!
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16th Oct 2017, 2:12 pm | #206 | |
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Re: 'Cable Break In' - I never knew that!
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A very good friend of mine did have a one year placement with the Culham CO2 team though. Cheers, GJ
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16th Oct 2017, 2:14 pm | #207 | |
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Re: Audiophoolery. 'Cable Break In' - I never knew that!
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Jitter can be a problem, but it is not as big a problem as some people fear. Strangely, the popular 'fix' (a bolted-on oscillator 'upgrade') will often make things worse due to interfacing problems such as ground-bounce. |
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16th Oct 2017, 5:08 pm | #208 | |
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Re: Audiophoolery. 'Cable Break In' - I never knew that!
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Prof Malcolm Hawkesford at the University of Essex has a good demonstration in which he ac couples the servo signals on a CD player, amplifies them, and demonstrates that they have a distorted version of the analogue audio stream impressed on them. Now this is quite a while ago, and it escapes me whether this was as a result of an electrical coupling mechanism, or an acoustic phenomenon because of the acoustic environment from loudspeakers. I'll try and find out and report back if I find the information. |
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16th Oct 2017, 5:23 pm | #209 | ||
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Re: 'Cable Break In' - I never knew that!
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Regarding Martin - well he was essentially out the equation when I was there in the early 90's (very much the elder statesman), although I knew him reasonably well. But the detailed information gets diffused and needs to be relearned. Probably periodically. Of course since I left the 100-strong highly skilled mechanical workforce in the Research Instruments Division has been disbanded, and all the mechanics is subcontracted, with coil winding as far flung as China. There *might* be some core skills left, but I've been out of there for 20-odd years now, so the current state of the ship is anybody's guess. My research degree was in Nd:YAG, which was quite a beast in its own right. Some light bedtime reading https://eprints.soton.ac.uk/393635/1/82032212.pdf . Last edited by Craig Sawyers; 16th Oct 2017 at 5:29 pm. |
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16th Oct 2017, 6:30 pm | #210 | ||
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Re: Audiophoolery. 'Cable Break In' - I never knew that!
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16th Oct 2017, 7:05 pm | #211 |
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Re: Audiophoolery. 'Cable Break In' - I never knew that!
Oh dear.
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16th Oct 2017, 8:57 pm | #212 |
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Re: Audiophoolery. 'Cable Break In' - I never knew that!
I bought one of those green pens for CDs, but instead of spending hours painting it around the edge of every CD I own, I used it to paint one huge thick ring right around my whole CD player!
The difference is astounding! I'm smart! David
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16th Oct 2017, 9:33 pm | #213 |
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Re: Audiophoolery. 'Cable Break In' - I never knew that!
I am listening to Youtube on a pair of USB headphones to Slade Yes, Led Zeppelin. ELP amonst others its my 61st Birthday.
You can argue to the cow come home guess What I do not care. Audipholes are well named. You can have the best system money can buy yet why is it it you can can enjoy a local band at the pub with shocking acoustics. It does not mean I dont have a system capable of respectable reproduction but its just that, others will have far better and spent more or less. Time to stop giving the Phools any oxygen of publicity on this forum just ignor them. Let them get incresingly anal of their own forums Gotta Go TRex Get it on is playing. Cheers Mike T
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16th Oct 2017, 10:16 pm | #214 |
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Re: Audiophoolery. 'Cable Break In' - I never knew that!
I must try that David
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16th Oct 2017, 11:26 pm | #215 |
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Re: Audiophoolery. 'Cable Break In' - I never knew that!
Since you are confident in your position too, that is, it is basically ok to tell "Audiofibs" if it appears to be mutually beneficial for customers and sales, I thought I would put this question to a few of my colleagues to see what the general opinion might be. The question was posed in the form:
" Is it wrong for a person with scientific expertise, such as an Engineer, to advise anyone with information that they know is untrue and not based in science, provided there is a mutual benefit to both, and if there is no third party harm ?" The general response was that on your side of the argument was, on the face of it, it appears harmless. However the Engineer who does this dishonors both themselves and their entire belief in science. In short, it is a dishonorable thing to do. In this day and age there seems to be less importance placed on this quality, but it was and still is a severe no-no to behave dishonorably in Japan. |
17th Oct 2017, 7:16 am | #216 |
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Re: Audiophoolery. 'Cable Break In' - I never knew that!
Hi,
Really, come on guys some of the posts are now getting rather hurtful for anyone working in the Audio industry and as I said there are some good honest engineers in the audio industry. I really don’t want to have to get my coat as I said in post 183. Terry BVWS Member |
17th Oct 2017, 9:09 am | #217 | |
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Re: Audiophoolery. 'Cable Break In' - I never knew that!
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Personally I draw the line at misleading people. Not only would it leave a bad taste in my mouth but my professional body (the Institute of Physics) could, in principle at least, chuck me out if I were caught bringing the subject into disrepute . But I hesitate to go out of my way to attack their beliefs. Some of them seem genuinely happy as a result of them and who am I to ruin that ... However I am aware that hi-fi customers are pursuing a hard-to-reach goal and are happy (I genuinely think that that is the correct word) to pay for things which help them get there. I was interested in your comments on the Japanese view of this. Would they be compatible with the Kondo philosophy http://www.audionote.co.jp/en/philosophy.html or Leben's use of distinctive capacitors http://lebenhifi.com/products/cs300xs.html or Shindo's attachment to vintage components http://www.coolhunting.com/tech/shindo-laboratories or Luxman's belief in the "elegant tonal quality that is unique to the performance of the TA-300B, a direct heated triode" http://www.luxman.com/product.php?pid=56 ? Cheers, GJ
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17th Oct 2017, 9:16 am | #218 |
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Re: Audiophoolery. 'Cable Break In' - I never knew that!
There are good guys in the audio industry.
I know one very good engineer who was involved in a famous firm whose products were adulated beyond reason by pundits in the hifi press, yet they were the result of scientific, rational, good, engineering. The chief honcho of that firm was more than a bit of a showman and inclined to say things planned to shock. The press loved him. It must have been difficult deciding how to design things and what not to say so that the 'glamour' wasn't blown away inadvertently. It was certainly very profitable. The problem with the audio industry as a whole (and plenty of other industries as well) is that those who haven't a clue make a lot more noise than the quiet, considerate folk. But it is the quiet ones who are most valuable. david
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17th Oct 2017, 10:38 am | #219 | |
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Re: Audiophoolery. 'Cable Break In' - I never knew that!
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* This is an edit, I originally said Richard Walker! (He was the great angler..)
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A digital radio is the latest thing, but a vintage wireless is forever.. Last edited by stevehertz; 17th Oct 2017 at 11:00 am. |
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17th Oct 2017, 10:44 am | #220 |
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Re: Audiophoolery. 'Cable Break In' - I never knew that!
Peter Walker? Ross Walker? Not sure who Richard Walker is/was - google was no help on that name.
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