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25 fps sound question


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#1 John Sprung

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Posted 13 March 2010 - 12:22 AM

A question for those of you in the 25 fps countries: When you shoot double system sound with a tape camera at 25 fps, what sample clock rate do you use?


Thanks --




-- J.S.
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#2 John Brawley

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Posted 13 March 2010 - 12:58 AM

A question for those of you in the 25 fps countries: When you shoot double system sound with a tape camera at 25 fps, what sample clock rate do you use?


Thanks --




-- J.S.


Hi John,

Do you mean audio tc frame rates ? It's normally 25 FPS for BOTH 25 FPS vision and 24 FPS vision double system.

Sample rates ? 48Khz and sometimes 96 Khz ?

jb
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#3 John Sprung

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Posted 13 March 2010 - 01:50 AM

Yes, the sample rates. Is it 48.000 or 48.048? I was wondering if there might be something like 50.050 KHz out there.




Thanks --




-- J.S.
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#4 John Brawley

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Posted 13 March 2010 - 03:08 AM

Yes, the sample rates. Is it 48.000 or 48.048? I was wondering if there might be something like 50.050 KHz out there.




Thanks --




-- J.S.



No there's no requirement for such things :-)

jb

EDIT

I mean to say that it's 48k straight.
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#5 John Sprung

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Posted 13 March 2010 - 02:51 PM

Thanks, that's the info I needed.




-- J.S.
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#6 Keith Walters

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Posted 14 March 2010 - 04:11 AM

Thanks, that's the info I needed.

-- J.S.

Why do you ask, if it's not a rude question, or subject to NDA :lol:
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#7 John Sprung

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Posted 14 March 2010 - 11:46 PM

We have a project starting up that will shoot on a 50 Hz. location, and post here, where they insist on working in 24p. The DP wants to shoot 25 fps, to have complete freedom to choose shutter angles.



-- J.S.
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