Film-Tech Forum ARCHIVE: What happen to DTS without timecode?

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

»	Film-Tech Forum ARCHIVE » Operations » Film Handlers' Forum » What happen to DTS without timecode?

Author

Topic: What happen to DTS without timecode?

Antonio Marcheselli
Phenomenal Film Handler

Posts: 1260
From: Florence, Italy
Registered: Mar 2000

posted 09-21-2000 05:29 AM

Hello everyone.

Few days ago a discovered how DTS manage a reel without timecode in a DTS encoded film.
Let me explain.
After a reel change, my sound reader didn't read the new timecode. Ok, the problem is my reader and not the film but what happened was like the new reel doesn't have timecode, right?

Well, the DTS unit go forward with the end of the previuos reel. I heard 1 or 2 seconds of sound, then nothing and... BEEP!

After that the unit drop in SR.D.

Why the unit doesn't drop in SR before the mute and the BEEP???

This is the same also with newest unit? I have a 7 years old DTS-6.

Bye
Antonio

| IP: Logged

Gordon McLeod
Film God

Posts: 9532
From: Toronto Ontario Canada
Registered: Jun 99

posted 09-21-2000 07:13 AM

The DTS system will continue for up to two minutes with no time code present as a failsafe for a tensioning problem in the reader

| IP: Logged

Antonio Marcheselli
Phenomenal Film Handler

Posts: 1260
From: Florence, Italy
Registered: Mar 2000

posted 09-21-2000 03:09 PM

Gordon,

two seconds I suppose... I know 4.5 seconds. However, I know why this happened, and I think that this is one of the best point of the DTS system.

But let imagine that your DTS film, for a lab mistake, has a reel without DTS timecode or just the start of the reel without timecode.

It is friday and labs can't provide you a new reel until monday.

Do you prefer to project the film in SR/DD or have the film in DTS with a second of mute and a loud BEEP in the middle of the film?

Antonio

| IP: Logged

Brad Miller
Administrator

Posts: 17775
From: Plano, TX (36.2 miles NW of Rockwall)
Registered: May 99

posted 09-21-2000 04:00 PM

I'd run SRD if possible. Otherwise, it's analog time. This is yet another reason why prints NEED to be at theaters on Wednesdays.

| IP: Logged

Gordon McLeod
Film God

Posts: 9532
From: Toronto Ontario Canada
Registered: Jun 99

posted 09-21-2000 06:55 PM

As I said the film willplay for about 2 minuets but since it has reached the end of the reel it will continue with that reels file until it gets to the sync beep unless it receives the TC for the next reel
run it in what ever format you want if there is a problem I never sugested you shouldn't you asked why it made a beep and that is why

| IP: Logged

Antonio Marcheselli
Phenomenal Film Handler

Posts: 1260
From: Florence, Italy
Registered: Mar 2000

posted 09-22-2000 08:47 AM

Gordon,

My english is not very good, I hope that you didn't understand my reply as a critic. If yes pls excuse me.

What I want to say with this topic is just: why at DTS doesn't cut the file before the sync beep and silence? In this way, if you have bad timecode in one or more reel, you will not have that "beep" in the middle of the show.

About the "two minutes": I know that DTS will continue playing digital sound without timcode for 4.5 seconds, not 2 minutes!!

Thanks to everyone for the replies!

Antonio

| IP: Logged

Karen Hultgren
Master Film Handler

Posts: 492
From: Agoura Hills, CA, USA
Registered: Mar 2000

posted 09-22-2000 02:47 PM

What you are hearing is normal if a change-over is not made in time or if you are running only one reel (in DTS).

Karen at DTS

| IP: Logged

Karen Hultgren
Master Film Handler

Posts: 492
From: Agoura Hills, CA, USA
Registered: Mar 2000

posted 09-22-2000 02:50 PM

The drop=out time was increased from 2 to 4 seconds. That was done in TCR software (U14 on the D422 board) about a year ago.

Karen at DTS

| IP: Logged

Tom Kroening
Expert Film Handler

Posts: 214
From: Janesville, WI USA
Registered: Oct 1999

posted 09-23-2000 06:16 PM

Brad, you might have read this but that exhibitor guide says prints are shipped for delivery on Thursdays for "security" reasons. Although we got Urban Legend 2 on Wednesday... I think its sony, right? Which means its TES. Must be a fluke.

| IP: Logged

All times are Central (GMT -6:00)

Printer-friendly view of this topic

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.