8mm Forum: Basic Sound Sync Question.

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Topic: Basic Sound Sync Question.

Melvin England
Jedi Master Film Handler

Posts: 707
From: Hull, East Yorkshire, UK
Registered: Feb 2016

posted January 05, 2018 01:22 PM

One part of this wonderful hobby that I have yet to attempt, is using a sound synchronizing machine to record sound onto film.
I have read several threads on this topic but I need to ask one totally bog standard basic question that may, to some of you, be elementary... but if one doesn't know the answer, one doesn't know the answer!

Say,for example, I am wanting to connect the sound from a dvd in sync. with a film, do all dvd players give out this "pulse" that is fed to the sync deck that then keeps the projector running speed constant, or do I need a special one?

Just so you know, I am thinking of using a "GS1200 Video Sync." box with a GS1200. To be honest, I am not sure if the box is home made or not. Does it sound familiar?

Any help / advice would be very much welcome.

.

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"My name is for my friends!"

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Brian Fretwell
Phenomenal Film Handler

Posts: 1785
From: London, UK
Registered: Jun 2014

posted January 05, 2018 02:08 PM

I don't think there is a pulse, the box should convert the normal sync signals for an analogue TV from the video out to a pulse for the projector.

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Paul Browning
Phenomenal Film Handler

Posts: 1006
From: West Midlands United Kingdom
Registered: Aug 2011

posted January 05, 2018 02:17 PM

What box are you using Melvin, there are a few different one's, the cresta one or pedro box, what ever comes out of the dvd player it comes from the yellow phono socket into your box then in to the GS, some are fitted with a crystal sync which locks the projector at the frame rate of the source...

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