As usual I can make no sense of this, we have tediously discussed this in the past. How could it "not be the result you got" without observing the occurance of uncorrected errors?
Maybe we should get back into that there are so many uncorrected errors that it creates a "sound". Yawn.
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Today we easily accept packetized data, and don't expect *anything* to run in real time. But somehow we have a harder time accepting that plain old Red Book audio CD's of thirty years ago don't operate in real time and aren't a string of ones and zeros translated directly into audio.
Thanks,
Chris
Thanks,
Chris
There are plenty of reason why the CD should be perfect. The issue might keep coming up because it doesnt sound very good. Now that doesnt mean it wont pass DBLT (Double Blind Listening Test) with flying colors -- rather, when I compare the master tape with the CD - it is soooo different.
Instead of everyone explaining known problems and known issues and existing solutions over and over, explain why the master recording and CD made from it is sooo different in sound quality. The closest I get to the sound of real music is from downloads of a master. All digital can be very good but the CD isnt.
If you dont explain why the CD isnt as good as the master recording then there is nothing to learn which could be used for other products/processes.
Thx-RNMarsh
Instead of everyone explaining known problems and known issues and existing solutions over and over, explain why the master recording and CD made from it is sooo different in sound quality. The closest I get to the sound of real music is from downloads of a master. All digital can be very good but the CD isnt.
If you dont explain why the CD isnt as good as the master recording then there is nothing to learn which could be used for other products/processes.
Thx-RNMarsh
Has anyone actually demonstrated that it does? Beyond the usual foot stomping and hand-waving that is.
se
At least in my experience the cd that is well made they are close to the master tape . However most cd are so far form well made much like vinyl was far from what it could be in the 70s and 80s . Much of this debate is for me missed placed . Production quality is the cause of CD being sad not the format so much it self. As for wht CD is much less than master tape . There is software out there that can fix those cd error before burning a safe copy as some exaples of it for me saw 13000 error corrected on some cd before burning it on a single disc . Leading me to say it not the digital but very poor made CDs causing the CD player work fixing the errors . Well that's my view.
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What double blind test? One between the CD and the master?
If the two sound soooo different, a mastering engineer may be a good person to ask.
I disagree, several of Kavi Alexander's Waterlily Acoustics CD's do not "not sound very good" (there are others). An existance proof is all I need, the problem is not the medium.
Yes, computer data is perfect - unless, of course, it's been written by Microsoft ... 😀
I have some older Chesky disks that I would be hard pressed to say anything negative about but many Columbia House CD reissues that sound atrocious. I would place the majority of the blame on the recording engineers just putting out mediocre transfers from the original master tapes. Then again many older master tapes are so old that bleed through and loss of the original content is another issue.
Thx ... a few fluff answers here. Yours bring up What is wrong with production that it can change the quality of the master to CD copy/burn? Is it a particular piece of equipment that is used in mastering or is it the mass produced copy burning mahines or what? What exactly in the transfer? Where in the process does it go bad most of the time. If we can identify this, and put our finger right on it, we can go beat up the right person(s) responsible.
Thx-RNMarsh
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I made a diagram with your data (resistance is in milliohms) to find out what you mean.
The interesting thing for me is that there has to be a 6th order polynomial (!) to fit the curves.
Differences shown in the two equations are at the coefficients of the 2nd and 5th order.
It’s your turn now 🙂
George
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The CD is perfect so long as what you're considering are the digital qualities of the data extracted. Where the poo hits the fan is that, eventually, at some point, the data has to be translated, considered by circuitry as an analogue waveform. If this is not done perfectly, or is corrupted by interference caused by the digital mutterings earlier on then all that earlier perfection has been piddled on to some degree ...
George
What I get from the data is that a fuse should in use carry 20% of its rated current for the least non linear effects.
ES
Error correction is all part of the process. And there can indeed be thousands of C1 errors on a CD. C2 errors are another matter. Does the software make any differentiation? And what's any more wrong about the CD player having to "work" to correct errors, compared to the work it has to do to read the data off the disc in the first place?
What, you think your hard drive doesn't employ error correction too?
se
Kavi only listens and doesnt measure. he has total control over the hardware he uses and how it is used. And his masters are pretty OK -- for 2 mic setups/recordings and a very limited budget. If you can hear the original master of his, its pretty good. Then Kavi has to rely on others for copies to sell. he trys to get the people who make the best sounding copies of his master recording. But Kavi doesnt select their equipment and other details. he has limited control over the processing etc. So, I suspect it is not the master recordings that is the biggest proplem. Just wish someone actually knew who/what/where/how so we can address it properly.
Thx-RNmarsh
Thx-RNmarsh
Months ago, I put up here some spectrum data photo's of the freqs put onto the ac power line by audio/vidio/computer systems in the house.... the spectrum is from audio to FM/TV freqs. What are some voltage levels which could be found in the home.... See attached for Normal-Mode (Differential Mode) on top trace and CM or Common-Mode and what a simple filter can do. Scale is NM=4v/div, CM=2v/div and after filtering is .4v/div
Thx-RNMarsh
Thx-RNMarsh
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