Laserdisc was out first and not setting the world alight so you can see the desire for a compact format. Given the genesis in the late 70s and the need to be an affordable consumer product with the technology of the time I think they did a pretty good job. 5 years later and maybe 18 bit 48kHz would have been chosen but you can't say they did a bad job.
They didnt do a bad job. But we held on to that CD way past what technology could improve upon. Thank the Gods for the internet or we would still be limited to that era technology.
-RNM
I have some 10k albums in 16/44.1 I'm not about to ditch them esp as I don't find them particularly lacking.
Ditching them seems a bit drastic. Why would you think of anyone doing that?
I dont want to ditch my irreplaceable 1000 blues music CD's either. I just wont buy any new Cd and will do HD downloads now.
I am slowly putting CD's on a file server because I gave my new OPPO CD/DVD player away. It sounded really mediocre at best.
-RNM
I dont want to ditch my irreplaceable 1000 blues music CD's either. I just wont buy any new Cd and will do HD downloads now.
I am slowly putting CD's on a file server because I gave my new OPPO CD/DVD player away. It sounded really mediocre at best.
-RNM
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My uncle (now in his mid 70’s) still has his Luxman tape deck and 100’s of tapes still in use, he updated to cd’s eventually but still plays his tapes of vinyl he doesn’t want to ‘wear out’ and I’ve been trying to get him into streaming but he has no computers or wi-fi, not even a cell phone (still uses landline)......point is nobody is telling you to ditch anything.
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Precisely? Uh greater realism and accuracy? Especially above midrange.
THx-RNMarsh
Did I say,they did a bad job? 🙂
I find the stories around the invention (including the story about one Philips guy who started the whole thing as kind of a personal project; I hadn't heard that before) totally fascinating and amazing what they had accomplished.
Of course it is speculation, but if we consider the fact that Philips already had to use four times oversampling and that the successor (TDA 1541) capable of doing 16 Bits with a max. Fs of 200 kHz was already existent around mid to end 1984 (as a prototype) it was a near miss.
The benefit of dither was already known, but somehow not regularly in use at the beginning, if it had to be we could assume that TDA 1541 could have been realized a bit earlier and considering that some amount of bits remained unused .......
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You are so right.
I made several exponential sims, up to five time as fast in decay, but there was no significant difference between them in the time domain behaviour after filtering.
I'm done with all this undocumented and incorrect comment, where every other word is strawman.
To my joy, I have no idea what in this context this word means, but I would like to keep it that way.
Hans
“The problem with a cymbal is, there is so much U/S in the high bw signal, that in essence there will be no threshold. That is why I mentioned 40Khz as a reasonable guideline, as I cannot see any envelope causing sidebands above that.”
My problem with this that you won’t hear anything above 20k and much above say 8 or 10k at our ages.
I have not seen any definitive studies (jacob2/gapag where r u?) on u/s energy folding down into the audible band affecting the overall sound enough to be detectable through the average Hifi set up.
I get why 24/96 or 24/192 might be better because the filter slope can be made much less aggressive in order to meet the Fs/2 Nyquist criteria and reduce ringing but beyond that? My SACD’s do sound very smooth, but I’v3 told myself I’m imagining things.
As for vinyl, well it’s like 40 bits resolution isn’t it? 😀
My problem with this that you won’t hear anything above 20k and much above say 8 or 10k at our ages.
I have not seen any definitive studies (jacob2/gapag where r u?) on u/s energy folding down into the audible band affecting the overall sound enough to be detectable through the average Hifi set up.
I get why 24/96 or 24/192 might be better because the filter slope can be made much less aggressive in order to meet the Fs/2 Nyquist criteria and reduce ringing but beyond that? My SACD’s do sound very smooth, but I’v3 told myself I’m imagining things.
As for vinyl, well it’s like 40 bits resolution isn’t it? 😀
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Bonsai --- Many younger people still can. Improve it for them.
Its not only the filter but the higher sampling rate.
THx-RNMarsh
Its not only the filter but the higher sampling rate.
THx-RNMarsh
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5 years was a long time in technology back then! Given the vast investments for unknown (but hoped) rewards I take my hat off to them for what they achieved.
Howie can probably tell us how much a CD mastering and replication plant cost to setup from scratch. Probably a painful amount with a lot of zeros.
It really works both ways if one has the basic grasp of the transforms and underlying physical processes at play. Of course, understanding that would make this back and forth so banal that it wouldn't have gotten off the ground in the first place.
Without time mirrored exponential I would expect.
No problem, that is what I expected from you. You are quite predictable.
jn