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Topic: 35mm mag sound

Jan Hackett
Expert Film Handler

Posts: 148
From: Albuquerque, NM, USA
Registered: Apr 2002

posted 11-14-2002 01:49 PM

Help how does one sync a mag track tpo an 8:70 print. Going live this weekend and have only used dts cd's. Can thread dubber but where are sync marks on mag? Please help...thanks

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Jan Hackett
Theater Operations Manager
Extreme Screen Dynatheater
NM Museum of Natural History Foundation

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Paul Mayer
Oh get out of it Melvin, before it pulls you under!

Posts: 3167
From: Las Vegas, NV and SoCal USA
Registered: Feb 2000

posted 11-14-2002 04:49 PM

There should be some sort of obvious mark at the head of the reel. Most of the reels I've seen have a long white sticker on the backing side, centered on the sync frame. The sync frame is usually marked with an 'X' and a hole punch (though I have seen some where the sync frame is just a single frame of leader or slug spliced at the sync point). Place that 'X' on your playback head. That should do it. After interlocking I used to roll the projector by hand one or two frames just to make sure everything's fine--saves an embarrassing flying start without the sound.

BTW If the reel still has tones and noise on the front end, the sync mark might be quite a ways into the reel.

HTH,

Paul

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Gordon McLeod
Film God

Posts: 8459
From: Toronto Ontario Canada
Registered: Jun 99

posted 11-14-2002 05:41 PM

If there is no synce mark the beep corisponds to frame marked 2 on the smpte leader
Put picture start in the gate and the synce mark (usually a tape with an X on it accross the head of the dubber and press the interlock button
If no sync mark find the beep and count the frames backwards

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Stephen Furley
Film God

Posts: 2482
From: Coulsdon, Croydon, England
Registered: May 2002

posted 11-14-2002 05:58 PM

Or if you're really unlucky there's nothing at all, and you have to find the sync by trial and error, and then make your own marks.

What sort of place is this, and what films are you running? Is this a new venue, or just new to this format? Hope all goes well for the opening, can you post some pictures?

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Karen Hultgren
Master Film Handler

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

posted 11-14-2002 06:27 PM

You don't have a DTS in your booth? DTS player? DTS reader? What is the film title?

Karen at DTS
khultgren@dtsonline.com

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Jan Hackett
Expert Film Handler

Posts: 148
From: Albuquerque, NM, USA
Registered: Apr 2002

posted 11-15-2002 11:41 AM

Yes I do have DTS but on this film...Micheal Jordon.. We received a 35 mag ..of which I have never used before. The mag does have a mark for beep 2. Where should the x correspond to that mark.

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Jan Hackett
Theater Operations Manager
Extreme Screen Dynatheater
NM Museum of Natural History Foundation

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Joe Beres
Jedi Master Film Handler

Posts: 603
From: Minneapolis, MN, USA
Registered: Nov 2000

posted 11-15-2002 11:52 AM

The "beep 2" mark on the mag should sync with the '2' frame on the countdown leader of the picture. That is unless large format film editing is done differently than smaller format film.

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Scott Norwood
Film God

Posts: 6175
From: Boston, MA. USA (1774.21 miles northeast of Dallas)
Registered: Jun 99

posted 11-15-2002 01:24 PM

Picture start should be 144 frames (576 perfs) before the 2-pop. (For 4/35, anyway.)

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Gordon McLeod
Film God

Posts: 8459
From: Toronto Ontario Canada
Registered: Jun 99

posted 11-15-2002 05:01 PM

Jan if you have a syncronizer take an 35mm leader and the number 2 on it should line up over the beep and the frame marked picture start is the sync mark

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Jan Hackett
Expert Film Handler

Posts: 148
From: Albuquerque, NM, USA
Registered: Apr 2002

posted 11-15-2002 06:01 PM

Thanks Gordon....Do I have to program my Show control to the mag...

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Mark Gulbrandsen
Film God

Posts: 13225
From: Bountiful, Utah
Registered: Jun 99

posted 11-15-2002 06:28 PM

Jan,
Be sure that your preamps are set up properly(level & EQ), or at very least listen to the mag reel once to be sure that what you have is acceptable before you run any paying shows!!
Mark @ CLACO

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Gordon McLeod
Film God

Posts: 8459
From: Toronto Ontario Canada
Registered: Jun 99

posted 11-15-2002 07:33 PM

Luckily almost all 6 track large format masters are fairly close to the 185 nwb and I have played that track and it is ded on (sonics did the mastering)
you will probably have to set the showcontrol to the mag input

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Jan Hackett
Expert Film Handler

Posts: 148
From: Albuquerque, NM, USA
Registered: Apr 2002

posted 11-18-2002 04:12 PM

Thanks gang.....Got 2 good shows and then my dubber froze and ate mag for dinner.... [Eek!]

I just talked to DTS....they are saving me [thumbsup]

Appreciate all your help............jan

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Gordon McLeod
Film God

Posts: 8459
From: Toronto Ontario Canada
Registered: Jun 99

posted 11-18-2002 08:07 PM

Find out what went wrong a lot of stuff is still only got mags for it

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Paul Mayer
Oh get out of it Melvin, before it pulls you under!

Posts: 3167
From: Las Vegas, NV and SoCal USA
Registered: Feb 2000

posted 11-18-2002 09:19 PM

Jan,

What kind of dubber was that? We ran on Magna-techs with 6k floating hubs at Caesars--don't remember one ever crashing as bad as you describe.

Paul
Back in SoCal next week, interviewing for a bilingual audio engineer job...

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