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CPU Load and Sound Quality

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18 minutes ago, STC said:


Proving irrespective of the CPU load, load of BS will continue forever?  

 As the OP , all you have to do is request that your deliberately provocative thread is closed. 


How a Digital Audio file sounds, or a Digital Video file looks, is governed to a large extent by the Power Supply area. All that Identical Checksums gives is the possibility of REGENERATING the file to close to that of the original file.

 

PROFILE UPDATED 18-06-2019

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5 minutes ago, STC said:


Why? For stating the obvious?  

 

NO, for starting a thread where you are not interested in hearing opinions/reports other than those that suit your own personal  P.O.V.

 

 


How a Digital Audio file sounds, or a Digital Video file looks, is governed to a large extent by the Power Supply area. All that Identical Checksums gives is the possibility of REGENERATING the file to close to that of the original file.

 

PROFILE UPDATED 18-06-2019

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3 minutes ago, sandyk said:

 

NO, for starting a thread where you are not interested in hearing opinions/reports other than those that suit your own personal  P.O.V.

 

 

 

maybe he just doesn't want a bunch of dissonant noise in his thread


"The overwhelming majority [of audiophiles] have very little knowledge, if any, about the most basic principles and operating characteristics of audio equipment. They often base their purchasing decisions on hearsay, and the preaching of media sages. Unfortunately, because of commercial considerations, much information is rooted in increasing revenue, not in assisting the audiophile. It seems as if the only requirements for becoming an "authority" in the world of audio is a keyboard."

-- Bruce Rozenblit of Transcendent Sound

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5 minutes ago, sandyk said:

 

NO, for starting a thread where you are not interested in hearing opinions/reports other than those that suit your own personal  P.O.V.

 

 


And who is here interested to hear my finding. I am not expressing unfounded opinion. I am giving you evidence which your are bit interested because you got more pressing things to do beside posting your disagreement. I am not sure which would have taken more time. ;) 

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Just now, kumakuma said:

Threads on this site come in all colors and varieties.

 

There are even a few here that you haven't disrupted yet with your ill-tempered posts... 

There are only so many hours in a day.

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Don't curse - leave that to Mr. Rage


"The overwhelming majority [of audiophiles] have very little knowledge, if any, about the most basic principles and operating characteristics of audio equipment. They often base their purchasing decisions on hearsay, and the preaching of media sages. Unfortunately, because of commercial considerations, much information is rooted in increasing revenue, not in assisting the audiophile. It seems as if the only requirements for becoming an "authority" in the world of audio is a keyboard."

-- Bruce Rozenblit of Transcendent Sound

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9 minutes ago, Ralf11 said:

Don't curse - leave that to Mr. Rage

 Or perhaps leave that to Mr. Lack of Integrity ?

 

https://audiophilestyle.com/forums/topic/49659-step-by-step-surgery/page/9/?tab=comments#comment-1008381

 

#212  #213

 

 


How a Digital Audio file sounds, or a Digital Video file looks, is governed to a large extent by the Power Supply area. All that Identical Checksums gives is the possibility of REGENERATING the file to close to that of the original file.

 

PROFILE UPDATED 18-06-2019

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Quote

 

This was handed to John Atkinson of Stereophile Magazine at a NYC AES Convention in 1995.....

 

.....Don Keele (AES Preprint 2420 A/B) measured a 20 dB shift in differential interaural intensity at several frequencies due to a delay in one channel of only 53 usec which is equivalent to having a speaker or a listener’s head off symmetry a mere seven tenths of an inch.

As we have discussed before in (this series of posts also) many technical papers, if you also consider pinna effects, movements or delays of even a few microseconds or tenths of inches are significant in sensing horizontal position.  Even if one ignores comb filter effects and false pinna directional cues, the stereo loudspeaker crosstalk, as pointed out by Alan Dower Blumlein in the original binaural patent, limits the stage width and makes the center phantom image fuzzy.  All these factors make high quality stereo systems exquisitely sensitive to any small tweaks that differentially or in some cases absolutely modify the spurious peaks and nulls generated by the traditional stereo triangle.  Making comparisons of amplifiers, loudspeakers, cables, CD players, and phono cartridges, based on their imaging characteristics such as definition, stage width, air, depth etc., are not very productive undertakings.  In the presence of stereo crosstalk and the pinna/head related response errors, the already largely imperfect stage image is very susceptible to small changes in head position, differential delay in electronic components, loudspeaker position, speaker angle, room reflections, room asymmetry....

 

 Listeners will always find it difficult to decide whether any change in such a system is for better or worse, since, even after such a change, the image is still imperfect but in a different way.

 

...Again, evaluating equipment based on apparent stage width, image palpability depth, spatial realism, etc. is not technically supportable if interaural level, delay, and pinna pattern distortions are present.  A reviewer may be able to achieve a reasonable sound stage image by tweaking amplifier, cable, speaker crossover setting, speaker position, room response, etc. but another listener with different shaped pinnae and different head size will have a different interaural function and pinna filter pattern, and thus will not sense the same sound image or frequency response.  Finally, this same system, if set up at a different location with different speaker spacing/angle to the listener and perhaps a one inch path length difference to one ear, is likely to project an image quite different from the one generated in the original setup.  Reviewing stereo equipment the usual magazine way is like measuring color film reproduction performance using only black and white images and test methods.

 

- Ralph Glasgal

 

 

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2 hours ago, Blackmorec said:

 As my system has gradually improved I’ve noticed that it has become increasingly sensitive to changes,  some of which i find difficult to explain. Take running-in as an example. These days, whenever i place anything new in the signal path it usually goes through a period of sounding worse before it sounds better.  Many audiophiles have noticed the same phenomenon. I can’t explain scientifically why it happens, and many people who claim to be scientists or engineers deny that the phenomenon exists and claim that it has to do with psychological effects.  As a scientist i try to look at things logically. If indeed the phenomenon is psychological then it should happen with any change i make to the system that requires me to adapt to the system’s new sound. So is that the case?  No, far from it. For anything that doesn’t involve the signal, the change is immediate and stable. For used gear that’s new to my system but not new to carrying a signal, the change is similarly immediate. Then there’s the direction of the change. Everything new that i install sounds initially worse then better. If its my hearing acclimatising, then its always acclimatising to worse sound. That means that every upgrade I’ve ever made sounds worse than the existing system! So how come my system gets consistently better over time? So logically acclimatisation actually makes no sense.

 

Yes to increasingly sensitive to changes ... but I don't have the running-in syndrome - my very strong suspicion is that you're dealing with static behaviours to at least some degree ... I tend to automatically take those sort of things into account, plus I rarely use something "brand new".

 

There are a whole variety of parasitic behaviours, related to materials used, and construction, which one way or another generate electrical noise - juuuust enough to cause audible variations for those sensitive to such things. These all have to be got under control if one wants stable SQ - to me, any rig is always a work in progress, because there are so many aspects that can be impactful.

 

Are the factors all logical? Yep ... the bastard is human hearing, which can be sensitised to some quality in what it hears, so easily - but there is a point which I call competent playback, which does enough to keep me happy - one can do better, but how much agony do you want to go through ... ? 😛


Frank

 

http://artofaudioconjuring.blogspot.com/

 

 

Ahhh, Mankind ... Porsche intellect, Trabant emotions ...

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16 minutes ago, marce said:

No its about truth.

If it was about truth, then we’d be open- minded and committed to seeking it. Instead we try to force-fit illogical theories in order to avoid admitting there are still some things we don’t completely understand.  

 

 

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24 minutes ago, fas42 said:

 

Yes to increasingly sensitive to changes ... but I don't have the running-in syndrome - my very strong suspicion is that you're dealing with static behaviours to at least some degree ... I tend to automatically take those sort of things into account, plus I rarely use something "brand new".

 

There are a whole variety of parasitic behaviours, related to materials used, and construction, which one way or another generate electrical noise - juuuust enough to cause audible variations for those sensitive to such things. These all have to be got under control if one wants stable SQ - to me, any rig is always a work in progress, because there are so many aspects that can be impactful.

 

Are the factors all logical? Yep ... the bastard is human hearing, which can be sensitised to some quality in what it hears, so easily - but there is a point which I call competent playback, which does enough to keep me happy - one can do better, but how much agony do you want to go through ... ? 😛

What I hear are new signal carrying components changing over time until they reach stability. Avoiding these changes is easy

1. Play the new unit for several days without listening. They are then stable from the very first listen, so that rules out hearing adaptation as a reason for the changes.

2. Install well-used components. Their sound is also immediately stable, again indicating that hearing is not involved. 

 

If what you are saying is that some people’s hearing is sensitive to the changes that occur, then I would agree. However I don’t believe the variable is their hearing per-se, rather its their system’s ability to reveal the changes that varies between different people. When I started on this audio road, there was no such thing as specialised, just-for-audio cables or furniture. Speakers were wired up with lamp flex, the audio version being marked for phase and TTs and amps were placed on whatever convenient furniture was at hand. Sound quality was good and there was no such thing as burn-in. But as we discovered more about how to make our systems better.....new configurations, new components, new materials, improved configurations, improved digital resolution, less noise, better vibration control, better mains etc the improved sound quality brought with it a new phenomenon....burn-in. But as is obvious from the above, burn in is only an issue with sufficiently evolved systems, that have the ability to react to and reveal small changes. 

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