Film-Tech Forum ARCHIVE: DTS sound switch to ambient music during film

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Posted by Tony Monje (Member # 2775) on 07-31-2005, 09:02 PM:

Tonight when I was cleaning out a theatre with the credits running, I noticed the credits were running but the music had switched from DTS to the ambient music. Before I could let the projectionist know, it switched back to DTS and then right back to ambient music. I notified the projectionist and he said everything looked good on the processor. He also told me that about a year ago he had a friend tell him that they were in to watch a movie and the sound had gone out and come back in.
Has anyone had this happen? Any ideas?

Posted by Brad Miller (Member # 2) on 07-31-2005, 10:19 PM:

It would help to know the model number of your dts player.

If this happened in the last 60 seconds of the movie, then there is a good explanation. Your reader lost good timecode and the units are programmed to assume that the movie is over if it is in the last minute of the credits.

Posted by Tony Monje (Member # 2775) on 07-31-2005, 10:42 PM:

It has happened twice now that we know of for the film Stealth. It is about 45 seconds to a minute before the last cue which is set on the rating screen. It is the added "Final Closing" scene after the credits right before the rating screen. The processor is a DTS-6AD Cinema Processor.

Posted by Scott Manley (Member # 867) on 08-01-2005, 10:39 AM:

check the LED voltage....according to DTS the 6AD needs as close to the 4volts as you can keep it.

Posted by Tony Monje (Member # 2775) on 08-04-2005, 10:57 PM:

We ran another film in that house today and it did not cut out. Has anyone else had a problem with the print of "Stealth" cutting out during the credits?

Posted by Dustin Mitchell (Member # 372) on 08-05-2005, 12:58 AM:

This could also be an automation issue. Do you have proximity or contact cues? Very rarely in the past I've had film with excessive static buildup cause the automation to pulse the sound processor to switch to non-sync.

Posted by Phil Blake (Member # 2012) on 10-18-2005, 01:52 AM:

Well low and behold , I was looking through the archives for DTS faults as I am having a problem with a DTS 6ad switching to and from digital to nonsync several time , mainly during closing credits , and this first happened during a screening of Stealth, so
Tony , yes I have the same issue.

If i remove the discs it stays on SR during closing credits and does not move , it is only on digital sound setting this happens.

Again it happened during the closing credits of Sky High , I reprogrammed the panalogic to switch over to SR at the start of the closing credits. After switching to Nonsync during the credits , the unit starts to switch back and forth from digital to nonsync al by itself. I almost seems like the digital input is taking control over all inputs when discs are in drives.
[Confused]

Posted by Daryl C. W. O'Shea (Member # 1303) on 10-18-2005, 02:39 AM:

Mainly during the credits or only during the credits?

If it's only during the (last 60 seconds of the) credits than I'd suggest that your timecode reader needs its gain re-calibrated, since it's probably losing timecode and assuming the show is over and then switching back when it starts reading timecode again.

Posted by Phil Blake (Member # 2012) on 10-20-2005, 02:18 AM:

Well this seems to start happening during the last 2 to 3 minutes of the credits.