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This topic comprises 3 pages: 1 2 3
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Topic: New Anti-Piracy coding
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Marco Giustini
Film God
Posts: 2713
From: Reading, UK
Registered: Nov 2007
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posted 03-03-2008 07:11 PM
That does not seem the audio piracy code to me.
The audio piracy code is made covering SRD track for some frames. The CP drops to analog and on the analog track there is some blu bars for two frames that make a tone in the room. I suppose that this tone is different for print number basis, since the location of the noise is the same on every prints.
How can you say that cannot be heard?? I went upstairs during screenings many and many times before understanding that it was a new CAP code since 2004...
I was in touch with Dolby labs UK. They told me that it's used in USA too (that's what they told me) and that they were fighting with studios to remove them.
On DTS, I really don't know HOW, the tone is overimposed by the player, it does not drop to SR. It's less noticeable.
Well, if you have a very well aligned sound system, the short SR drop is not so much distracting, and they have improved it (I think it's shorter). But in real world SR is left to its destiny and you can just imagine what can be heard in the auditorium. And think to older processors, that makes drops in a more noticeable way. CP650 2.2.5.0 wave just a bit when going again in Digital.
Here's a shot.
![-](http://www.film-tech.com/uploads/uploads0503/FT1.jpg)
![-](http://www.film-tech.com/uploads/uploads0503/FT2.jpg)
At this time Disney stopped the terrible tecnique.
Brad: Rejecting? I talked to Technicolor Rome (this tecnique is a Technicolor patent) and they told me that the only complains they had was from theater with WHITE light on SR... They told me that this system is working, and that noone is complaying, besides me.
Ciao Marco
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