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In Reply to: ".. Sony came out with SACD *exaclty* 20 yrs after their licensing rights on CD expired)." posted by Duilawyer on April 25, 2004 at 08:55:07:
even though delta sigma has been around for a while, and DSD archiving also from Sony...only when they figured that they needed a replacement, did they use a Direct Stream Dividend scheme for customer playback :).i just did a quick search on Goggle on "DSD" this is an interesting bit i got from audioholic website where it came from:
"....Let's take a look at what would happen if we decided to work in DSD format tomorrow:
25 years of knowledge of pcm---dump it
High end pcm workstation---dump it
800 GB of hard drive---don't dump it but buy 800 more
Expensive multiple A/D and D/A's --dump 'em
New digital studio wiring---rip it open again and add 4 times as much
20 years of engineering thinking about new digital microphones---forget it---dump that too
Expensive outboard gear--wrong format---dump it and re-quip (with what?)
Review fax from major labels that says just send us your pcm work and we'll convert it to DSD. ---Weep!It's a total joke and we refuse to let the dullards in hi end hi-fi drive our investment. Those who push us to do this re-equipping will not guarantee our bank loan will they? This is even before one reviews the research of Lipshitz and Vanderkooy into the drawbacks of DSD.
Sony didn't tell you that you could record DSD on a regular PCM multi-track did they? No, they said we have some new gear to show and install for you.
We have an increasing load of work for DVD-A. Now someone tell me (a tough customer who has done the listening) why we should change to DSD.
Ealing mobile recording, Ltd., Chicago
Note: The above comments show us that in order for a studio to fully produce SACD discs they will need to fully re-equip their studios with a lot of new hardware and software. This is a very expensive proposition. Many recording studios are in the middle of an economic recession, and with the possibility that the SACD format will have limited distribution, many studios have serious reservations about buying into the SACD format....
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Follow Ups:
Geez, I'm glad my daughter doesn't come here... I can't believe the math level on this boardNo wonder we don't get more high-resolution releases, the publishers must be thinking we can't read big numbers...
("Joe, don't bother with the 24/192 version, I just read the DVD-Audiobahn, those guys can't even count their fingers" )
nt
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nt
CD rights EXPIRED.
. . . i.e. the expiration of Sony's CD patents around the time of the new millennium WAS a factor which strongly influenced the timescale of SACD's introduction (give or take a couple of years).It’s rather like the handover phase of the baton in a 400 metre relay sprint race (i.e. there is no sudden discrete changeover since the two runners are running together for about 10-15 metres on the racetrack.).
Ironically, when we apply that analogy to SACD, the only thing we can see happening now, is that after some four years already ( !! ), it still doesn’t look like Redbook CD is going to hand its baton over to SACD, however hard the latter seems to be trying to grab it! :-)
Your point is different, "why SACD was "invented".
I am not denying that.I am disputing the 20 year addition. Simple. It is a math problem. Sony's patent ran out of 2000, 20 years later is 2020.
Microsoft is running with the Intel Coach, Toshiba et al. promess an easier passing of the "baton", Sony/Philips are using stereoids but cant afford to get caught again, the file sharer are undercutting the whole scene and breaking race rules, gear manufacturer are sponsoring the race along with the music and movie industry...we, niche audiophiles, cheer left and right
please share, best.PS: CDs came out at the begining of the 80s...patent for CD lasts 20 yrs (w/o further modification to keep it going)..so 1980+20= yr 2000 (end of CD licensing rights). SACD came out commercially in 1999 or 2000 not sure...now see above...am i missing something??
Do the math.
my smileys usually mean "kidding around"...thanks for pointing out the discrepancy in that sentence...I thought what i meant to say was obvious (1980, 20 yrs, CD license expiring, etc.)...I didnt think i needed to correct explicitly.btw, it seems *I* got the good stuff...and im sharing too -> :-)...how did you like the Eric Clapton "on the road" DVD?
I will get it, but there are strange things happening at my local tower, from fully DVD stocked, to lot of empty bins. Thanks for the reminder.
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