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Recording audio with 16mm camera and easy sync

time code

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#1 Jacek Zagaja

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Posted 07 February 2017 - 03:52 AM

I see two solutions:

 

1) making trigger for popular recorders (hack their remote controlers) or make audio app for smartphone

 

2) use Time Code that is exposed in film (Aaton XTR) but how to read TC from audio file from TC enabled recorders?

 

any ideas?


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#2 Dirk DeJonghe

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Posted 07 February 2017 - 05:38 AM

We have been one of the pioneers for the Aatoncode system.

It used to be visible, man-readable numbers plus barcodes on film and man-readable numbers printed on white SEPMAG stock. It then evolved to telecine via Keylink putting man-readable numbers in the image plus machine readable timecode in 3-line modified VITC on Betacam SP or Digital.

Since everyone is now receiving rushes on fileformats, either we sync the timecoded audio to the man-readable audiotimecode on the picture (in case of rushes), or some users use an timecoded clapperboard.

 

The good old clapperboard still works with a crystal controlled camera. A digital audio recorder should be sufficiently stable to allow lip-sync with the clapperboard.

I think you can find a good selfblimped camera with crystal controlled motor for less than doing a DIY hack on a noisy old camera.


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#3 Jacek Zagaja

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Posted 07 February 2017 - 05:47 AM

I'm using Aaton XTR. Can borrow OriginC. My lab does not have Keylink. Goal is to point and shoot, audio recorder can record all the time or be triggered with camera.


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#4 Dirk DeJonghe

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Posted 07 February 2017 - 09:02 AM

You can use the Origin C+ as a timecode generator to enter timecode into your recorder. I use a Nagra 4S with Aaton module. An Aaton Cantar would be ideal since it has all the hardware already built-in.


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#5 Jacek Zagaja

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Posted 07 February 2017 - 09:05 AM

What to do with the audio files from Cantar?
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#6 Dirk DeJonghe

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Posted 09 February 2017 - 06:28 AM

The Cantar audio files will have the Aatoncode embedded, sync should be easy then.

Anyway, I suggest you do a test before shooting anything else. Remember that you need to set the proper ISO speed on the camera in order to have the correct Aatoncode exposure on the negative, even if you don't use the internal lightmeter.


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#7 Jacek Zagaja

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Posted 09 February 2017 - 10:07 AM

Cantar is extremaly expensive and as you see no one is doing this way today and result uncertain.
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