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Old 25th September 2012, 07:46 PM   #1241
NicMac is offline NicMac  Italy
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Quote:
Originally Posted by EUVL View Post
Is it not that this has now been proven by at least one experimental set up
Proven by one set up
That is not evidence in my world and has nothing to do with proof in any world. It even worked nicely stacked before.
I thought you had scientific training Patrick and would know better than to "prove" anything from a single subjective observation that the experimenter is even reluctant to reproduce afraid of ruining the recently rediscovered audio nirvana
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Old 25th September 2012, 07:48 PM   #1242
qusp is offline qusp  Australia
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Quote:
Originally Posted by steel monkey View Post
Here you can see optimised layout for DS dac Google Translate
sabre has not even close to 10mA, try more like 3.9mA p-p, have you used this dac chip? such a difference would force a completely incorrect design if you had. with careful layout radiated noise is not a big deal, just as with most modern dacs and honestly modern environments these days which contain DSP, CPU, wifi etc. high transient, high slew signals need proper treatment, but to extend this to claiming a general flaw.... if its such a minefield how is it its been used with high performance, but low PSRR circuits to achieve -113 THD+N? this would seem difficult no?

bemused layout is far from optimal, but he knows that. particularly those huge long battery leads leading straight to SEN/CEN. looking at the picture the thousand wires already look like visible radiation solar corona =). the BIII forces this kind of layout, so many modules.

Last edited by qusp; 25th September 2012 at 07:57 PM.
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Old 25th September 2012, 07:56 PM   #1243
qusp is offline qusp  Australia
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Quote:
Originally Posted by NicMac View Post
Proven by one set up
That is not evidence in my world and has nothing to do with proof in any world. It even worked nicely stacked before.
I thought you had scientific training Patrick and would know better than to "prove" anything from a single subjective observation that the experimenter is even reluctant to reproduce afraid of ruining the recently rediscovered audio nirvana
yes, perhaps replicated, or maybe you could push it to 'confirmed by at least one' would have been a better choice of words.
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Old 25th September 2012, 08:24 PM   #1244
NicMac is offline NicMac  Italy
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Quote:
Originally Posted by qusp View Post
yes, perhaps replicated, or maybe you could push it to 'confirmed by at least one' would have been a better choice of words.
Just pulling the leg of somebody that claim to carefully choose his wording
P.S. Replicated what by who? I still do not understand the "at least" part of the statement
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Old 25th September 2012, 10:49 PM   #1245
qusp is offline qusp  Australia
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yeah I figured =) its all give and take innit? I know Patrick can take it as good as he can give it, provided youve done your homework before posting a correction hehe if not.... well...

I was just suggesting an alternative wording under the circumstances, 'at least one' was Patricks wording, not mine.

there are 2 ways to read 'at least one' in English. it can mean 'definitely one that I know of, but maybe more', or it can mean 'at least there is one', which is more minimizing. the first way suggests that there could be more, kind of adding weight to the one so it seems more, the second is kind of making the one smaller, saying 'at least there is one' is stating that something you agree with is rare or new, but you know about one and are maybe expecting more. only Patrick can tell us which of those 2 inflections he meant

Last edited by qusp; 25th September 2012 at 10:58 PM.
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Old 26th September 2012, 04:12 AM   #1246
EUVL is offline EUVL  Europe
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There are academics (or otherwise known as scientists) around who has endless time.
So they try to figure out everything by lots of controlled experiments.
And then they put these experimental results together to make a theoretical model.

Except that some times, they forget some very practical things that will swamp their predictions.

I, as a practicing engineer, do not have that luxury.
I trust my instincts (or someone call that experience), find a solution that gives the result I what, and move on to the next.
But then that is why I have time to write and apply for some 200 patents, many of them already granted.

Different approaches. And I think the world can live with both in co-existence.




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Old 26th September 2012, 05:33 AM   #1247
NicMac is offline NicMac  Italy
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>There are academics (or otherwise known as scientists) around who has endless time.

Believe me, few have endless time.

>So they try to figure out everything by lots of controlled experiments.
And then they put these experimental results together to make a theoretical model.

Then they test the model experimentally and if it holds they have advanced knowledge.

>Except that some times, they forget some very practical things that will swamp their predictions.

Happen for engineers to. But then bridges may crumple.

>But then that is why I have time to write and apply for some 200 patents, many of them already granted.

Patents are examined, not peer reviewed. No sport.

>Different approaches. And I think the world can live with both in co-existence.

Certainly
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Old 26th September 2012, 05:58 AM   #1248
NicMac is offline NicMac  Italy
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BTW. Yesterday evening I tried to hook up my O2 to a single phase of the SEN in my semi-stacked Buffalo configuration. I have no noise and the BII/SEN/O2 combo actually sounds rather remarkable this way
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Old 26th September 2012, 11:22 AM   #1249
orelli is offline orelli  Italy
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What's 02? A oxigen molecol? I think not!
Ciao, scusa la mia curiosita'
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Old 26th September 2012, 04:03 PM   #1250
NicMac is offline NicMac  Italy
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A diyAudio headphone amplifier project (see here).
Molecular oxygen as amplifier sounds cool
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