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This topic comprises 6 pages: 1 2 3 4 5 6
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Author
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Topic: CP650??
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John Pytlak
Film God
Posts: 9987
From: Rochester, NY 14650-1922
Registered: Jan 2000
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posted 06-09-2000 02:39 PM
Raj:I can't recall any announcement, and I can't find anything in a quick search of the Dolby web site. What did you hear about the features of the new processor? I think a few Dolby folks "lurk" here, maybe one of them will provide details, if they are available. ------------------ John P. Pytlak, Senior Technical Specialist Worldwide Technical Services, Entertainment Imaging Eastman Kodak Company Research Labs, Building 69, Room 7419 Rochester, New York, 14650-1922 USA Tel: 716-477-5325 Fax: 716-722-7243 E-Mail: john.pytlak@kodak.com
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Joe Redifer
You need a beating today
Posts: 12859
From: Denver, Colorado
Registered: May 99
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posted 06-09-2000 03:20 PM
Dolby is finished with the CP650, but they are going back in to add bugs and glitches to make us all nostalgiac for the CP500 Actually, I know very little about the CP650. I just hope that it doesn't have a STUPID MENU SYSTEM like the CP500 does. I hate going through what seems like 20 very slow-changing screens just to adjust dolbytone. Also, the format switching on the CP500 seems slow to me, I hope they fix that. Also, on the CP500 you must cue SK8 which must be set up as Dolby Digital to cue the SA-10 into EX mode. But I run those cues right after the policy trailer before the digital comes on, and it gives me a "Not Ready" and never goes into EX. I must change the auto digital targeting for every EX movie to avoid this. I like how the CP65 will try to go to digital, but instantly fall back to SR. When digital is restored, the EX will come on. I do like the serial control capabilities of the CP500, so hopefully they retain that (I think that is the plan).
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Brad Miller
Administrator
Posts: 17775
From: Plano, TX (36.2 miles NW of Rockwall)
Registered: May 99
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posted 06-09-2000 04:53 PM
Well I doubt this is where Dolby is heading with their design, but here's my two cents.Please lose the digital equalization. Nothing beats the good ol' cat64 cards for great sound. Also, let's get that external digital input configured directly for a DTS input. No more of this "pull these two pins for the subwoofer to work" nonsense. And where's the SDDS input? I'd like to be able to leave the SDDS eq FLAT and perform the equalization within the Dolby processor. This nonsense of the SDDS "taking over" the audio system is a joke. The CP650 NEEDS two completely separate digital inputs, although I would personally like to see three. While I'm talking about external inputs, the dual non-sync was a fantastic idea. Please leave that. Can we please get back to tweekers? I agree with Joe that going through a maze of menus is just plain annoying. It's not that it's hard or anything (I've learned how many times to hit what button and in what order, so the CP500 is always seriously lagging behind my commands), but what is the benefit other than being able to store the settings on a disk? Is it a cost issue? Anyone given any thought to 1/3 octave eqing on the surround channels? How about 70mm? The last good 70mm machine Dolby put out was the CP200. The front panel needs more than 8 soft keys. I think 12 should suffice.
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John Walsh
Film God
Posts: 2490
From: Connecticut, USA, Earth, Milky Way
Registered: Oct 1999
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posted 06-10-2000 07:49 AM
I think the EX-auto-detection circuit works by a bit in the AC3 data. That is, you would have to have Dolby Digital in your theater. A signal comming out of the DA20 would set the EX feature in the processor. I can't see any way a "analog-only" installation would be able to detect it.By the way, does anyone remember the plugs on the back of a CP200 labeled, "TONE DECODE?" The signals (on the pins) went to the optical preamp. What were they for? I thought they might be an idea that Dolby was thinking about (but never implemented) where the format (01, 04, etc.) would be auto-slected. On our preamp pc board, the copper traces that connected those signals were cut, probably to reduce noise.
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Steve Guttag
We forgot the crackers Gromit!!!
Posts: 12814
From: Annapolis, MD
Registered: Dec 1999
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posted 06-10-2000 12:49 PM
Yes the CP-650 is official! According to Dolby document S00/13164:"The CP650 represents Dolby Laboratories' latest generation of cinema processors. With a completely new design, it incorporates the latest technology for decoding digital and analog Dolby optical soundtracks. The processor fits in a 3-U rackspace (5-1/4" high). All processing occurs in the digital domain. SR and A-Type noise reduction are achieved digitally, as is third-octave equalization for all playback channels. A digital parametric equalizer is also included for the LFE channel. Setup and alignment can be accomplished via a dual-trace scope or Windows-based PC. All alignment connections and test points are available at the front panel of the unit to simplify setup and testing. The CP650 has digital inputs for two projectors" <Yippie!> "supporting the Cat. No. 701 Dolby Digital reader, a six-channel analog input for external digital processors, two pairs of nonsync input connectors (RCA Style), a microphone input (balanced XLR connector) for P.A. use and B-Chain alignment, stereo PCM audio capability, and Dolby Digital for consumer applications (DVD and HDTV). There are balanced outputs" <finally> "for eight auditorium channels: left, center, right, left surround, right surround, back left surround, back right surround, and a subwoofer output. The unit features a hearing-impaired output, and an Ethernet port to accommodate future control and monitor functions." It apparently comes in two flavors: CP650: 35mm Dolby Digital Surround EX and Dolby Analog soundtracks.. $11,500.00 List. CP650-D: For 35 mm Dolby Digital and Dolby analog soundtracks....$10,500.00 List. The CP650-D can be upgraded with a UEX/650.
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