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Apple XDCAM 25P to 23.976 lose 4-channel audio Help!
Hi There,
We are having issues with XDCAM HD footage, the original media is Apple XDCAM HD 1080P 25P 4-channel audio mono.We need to convert this material to 23.976 keeping 4-channel audio. We have tried many combination on the audio settings on Compressor but we lose the 4-channel audio to a 2-channel stereo also tried the 4.0 channels setting and no luck.
Any suggestions?
Thanks !
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24 Replies
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‘pass through’ doesn’t work?
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If we do pass thought the video is out of sync.
We are converting from 25P to 23.976.“Equations are more important to me, because politics is for the present, but an equation is something for eternity.”
Albert Einstein -
What about to convert to Proress (or so) at p25 and Conform in CinemaTools?
rafael -
Thanks for the response Rafael but can you expand further on your suggestion.
Thanks.
“Equations are more important to me, because politics is for the present, but an equation is something for eternity.”
Albert Einstein -
You can “convert” (conform) a clip to any other time-base without rendering. Just need to conform it with CinemaTools. Just a click of the mouse.
If for example you conform a p25 clip to p24, the clip (audio included) will play a 4% slower.
Nothing that your eyes could detect. The audio will also play a 4% slower. This shouldn’t be a problem with voices or ambience.
The only caveat is that you can not do that with XDCAM footage because his GOPs.
it’s works with Intraframe codecs.
Faster process and you keep the original picture.
It shouldn’t be any problem keeping the 4 audio channels.
rafael -
So, you have to convert first the XDCAM footage to ProRess then conform in FCP?
Can you do that instead in compressor in one step?
We need work on 23.976 not 24P.“Equations are more important to me, because politics is for the present, but an equation is something for eternity.”
Albert Einstein -
You can do it in Compressor all at once but this means re-process all the picture, and if you want to do it with quality you need to set the Frame Control On and Best Retiming. Long, long.
The other way you only transcode to Proress. You end up with the original picture frame by frame, just wrote with other codec. This process is relatively fast.
Then you just need to import the Proress clip to CinemaTools and click “Conform to 23’98”.
That’s all, no further picture processing.
Faster and less degrading for the picture. More and more people use this workflow. There is a lot of info in this forum. Search “conform’ or “CimemaTools”.
Cheers,
rafael -
Well the main issues is not the actual conversion is the lost of the 4-channel audio after conversion is done.
“Equations are more important to me, because politics is for the present, but an equation is something for eternity.”
Albert Einstein -
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So, since we are working in XDCAM first it needs to be converted to ProRess 25P and the best way to do this is in FCP? I know we can do it in Compressor but this them will a be a two or three part process and we are dealing with ton of footage.
“Equations are more important to me, because politics is for the present, but an equation is something for eternity.”
Albert Einstein
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