I've just never heard of that happening in photo or video so it sounded bizarre, I'll check it out when I'm at a computer, I mostly post to this forum from my phone at cafés and such, I have no life, thanks.
Photo and video storage are quite different. They are more like MP3 than CD, with lossy compression. All you ever get with most JPEG is a rough approximation to the original scene - good enough to fool the eye most of the time.
I learnt a bit about picture data compression a few years ago. One of the tricks used is to look for part of a picture which looks a bit like another part of the picture when modified (e.g. rotated, stretched, squeezed). Store one of these, and then use it (suitably modified) to stand in for the other one too. In some parts, don't store the picture but store its Fourier transform instead - with higher coefficients set to zero. The net result is a picture which looks very like the original, yet almost every pixel may have a different value from the original.
CD aims to reproduce the original signal. Pictures do not, so don't try to carry across any 'intuition' as it will lead you serously astray. Instead, learn about digital techniques.
I learnt a bit about picture data compression a few years ago. One of the tricks used is to look for part of a picture which looks a bit like another part of the picture when modified (e.g. rotated, stretched, squeezed). Store one of these, and then use it (suitably modified) to stand in for the other one too. In some parts, don't store the picture but store its Fourier transform instead - with higher coefficients set to zero. The net result is a picture which looks very like the original, yet almost every pixel may have a different value from the original.
CD aims to reproduce the original signal. Pictures do not, so don't try to carry across any 'intuition' as it will lead you serously astray. Instead, learn about digital techniques.
Study the SAA7020; SAA7210 and SAA7220 datasheets, for example, it is well decribed there.
I shoot RAW
🙂
Of course the 30-40mb files take up some space (lossless compressed, otherwise they would be 70mb!!!!!) but you have the quality, a photographic equivalent to FLAC.
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As to the electronics working harder, nah they don't even break into a sweat, we are not talking high data throughput....
Blah, blah, blah
Burned CDs cause less servo tracking than store bought =! subjective
Figure this out, then see if it's audible ... you know, like science and progress and stuff 🙄
Science often progresses by observing something that is not expected, and then conceiving an explanation.
Or we just blind test the difference and then look backwards and try to locate where it is. 🙂
I sort of wish there was an audio magazine which only performed blind evaluation, even if it's hazardous it should work under careful conditions.
Howie still didn't answer the question. He was looking at the signal in the electrical domain.
And then isolating and ... testing your explanation ... and once you're onto something you've got an hypothesis and then ... then, you go back and forth a few times you've got yourself a, a ... a theory!
Yes I know, my B.A. is in Phil of Sci.
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well you can also talk about effects significant in light passing though a Million times longer path in optical fiber than CD disk plastic layers
And then isolating and ... testing your hypothesis, and once you're onto something and go back and forth a few times you've got yourself a, a ... a theory!
Yes I know, my B.A. is in Phil of Sci.
Sure, but true fundamental theories are rare. Most of what we call theories are actually effective theories, something which works, but will be superseded at some point by yet another effective theory, like Newton - Einstein.
But Sy, you can have errors there that the electronics dont pick up. This is the reason they use and interleave Reed-Soloman scheme for error detection. But BER in the optical domain does not always translate to jitter.
Typical EE answer. Electronics and software can do it all!
Typical EE answer. Electronics and software can do it all!
Since I'm not an EE, I can't make any sense out of why you keep repeating that mantra.
The only thing that matters, the ONLY thing, is the electrical output of the player- the rest of the stereo doesn't look at photodiode pickup. And the electronics and firmware (let's be clear about that distinction) in fact DO "do it all." It's a very robust system.
The only thing that matters, the ONLY thing, is the electrical output of the player- the rest of the stereo doesn't look at photodiode pickup. And the electronics and firmware (let's be clear about that distinction) in fact DO "do it all." It's a very robust system.
Well, I will go into work today and tell everyone we are fools for developing our digital and analog lasers. ll that matters is the electrical output. You just saved the F-35 millions!
I don't follow that analogy at all. But that's OK, I'm not trying to convince the world that a technology which functions essentially flawlessly needs a crutch based on pseudoscience.
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