my profile | my password | search | faq & rules | forum home

» Film-Tech Forum ARCHIVE   » Community   » Film-Yak   » Dolby Surround / Dolby Stereo

Author Topic: Dolby Surround / Dolby Stereo Michael Brown Phenomenal Film Handler Posts: 1522 From: Bradford, England Registered: May 2001 posted 11-25-2001 11:03 AM                     So If I play a Cd encoded in Dolby Surround through the non-sync of a Dolby Cinema Processor, does it actually play it back in Dolby Surround.  |  IP: Logged Ken Lackner Phenomenal Film Handler Posts: 1907 From: Atlanta, GA, USA Registered: Sep 2001 posted 11-25-2001 12:53 PM                     Not exactly. I believe the non-sync input only accepts 2 channels (left and right). And even if it accepts more channels, a standard CD player can only read 2 channels. However, the processor can be set up to matrix any 2-channel non-sync source much the same way the optical soundtrack is matrixed. By doing this, you will have 4-channel surround. Check the manual for your particular processor for details.  |  IP: Logged Aaron Sisemore Flaming Ribs beat Reeses Peanut Butter Cups any day! Posts: 3061 From: Rockwall TX USA Registered: Sep 1999 posted 11-25-2001 12:54 PM                     Not likely. AFAIK, the matrix handles non-sync differently than the regular optical sound (no center channel and much lower surround level than optical). Running said CD thru the matrix in format 04 (after padding the level down quite a bit) should work however. -Aaron  |  IP: Logged Scott Norwood Film God Posts: 8146 From: Boston, MA. USA (1774.21 miles northeast of Dallas) Registered: Jun 99 posted 11-25-2001 12:59 PM                        Except that 04 includes type-A noise reduction, whereas the Dolby-encoded CD doesn't have (and doesn't need) noise reduction--it just uses the matrix encoding. And, on the older processors like the CP50, there are four non-sync inputs (LCRS) and non-sync bypasses the matrix completely...  |  IP: Logged Michael Brown Phenomenal Film Handler Posts: 1522 From: Bradford, England Registered: May 2001 posted 11-25-2001 01:07 PM                     The Processor is a Cp-55.  |  IP: Logged Jesse Skeen Phenomenal Film Handler Posts: 1517 From: Sacramento, CA Registered: Aug 2000 posted 11-26-2001 02:31 PM                     CP55's can decode a surround channel in non-sync, but not a center channel.  |  IP: Logged Gordon McLeod Film God Posts: 9532 From: Toronto Ontario Canada Registered: Jun 99 posted 11-26-2001 04:51 PM                     The CP55 and 65 and 500 can all be programmed to treat the nonsync input as a non NR encoded signal and decode it with LCR outputs from the matrix  |  IP: Logged

All times are Central (GMT -6:00)

Printer-friendly view of this topic

Hop To: Select a Forum: Category: Operations -------------------- Digital Cinema Forum Film Handlers' Forum Large Format Forum Ground Level Feature Info, Trailer Attachments & REAL Credit Offsets Category: Community -------------------- Film-Yak Film Handlers' Movie Reviews The Afterlife Bob Maar's Joke-A-Thon Category: Classified -------------------- Equipment and Supplies Wanted/For Sale Help Wanted/Seeking Employment Category: System -------------------- Software Beta Testing Forum

The Film-Tech Forums are designed for various members related to the cinema industry to express their opinions, viewpoints and testimonials on various products, services and events based upon speculation, personal knowledge and factual information through use, therefore all views represented here allow no liability upon the publishers of this web site and the owners of said views assume no liability for any ill will resulting from these postings. The posts made here are for educational as well as entertainment purposes and as such anyone viewing this portion of the website must accept these views as statements of the author of that opinion and agrees to release the authors from any and all liability.