QT files conformed with Cinema Tools import with no Sound

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mark brindle

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QT files conformed with Cinema Tools import with no Sound

PostTue Apr 19, 2016 10:09 pm

Ive just checked this on latest Beta and its the same behaviour as in previous version of Resolve 12.1

If I take a 25p Quicktime file (Prores HQ say) and run it through Apple Cinema Tools and conform it to say 24p or 23.98 (23.976) then the resulting file will play fine in QT, Mpeg streamclip, FCP, PP, AE and other editing apps. Cinema tools changes the audio to something like 46.07 KHz from 48Khz as its rate shifted the 25 frames to 24 frames but no apps seem to mind. If I bring that clip into Resolve, the audio will not come in and Resolve will show zero audio channels even though audio still exists on the clip. Ive only tested this with 2 channel clips but assume its the same for multi channel clips.

If I export the same file from QT again to the same codec at same frame rate (ie 24p if i had made it 24p), it will show audio rate of 48KHz and Resolve will see the audio channels ok if its re-linked or brought in again and will work as expected - so this is the work around right now. I would rather Resolve handles the audio in teh same way as other applications and just plays it as expected.
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Re: QT files conformed with Cinema Tools import with no Soun

PostWed Apr 20, 2016 1:15 am

I thinks that because the audio did not get re-pitched but just slowed down, resolve does not quite know what to do: it expectes a 48k frame rate.
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