Audio no sync Red one

[Chuska]

Hello:

I am editing a project shoot on Red One and I have transform all the clips to Apple Pro Ress LT, to make the offline editing. This clips has audio (Just a reference of the shooting).
On the other hand, I have the original audio recorded on Dat, so I am syncying it in the timeline with the clap board and I have also the audio of the video as reference.

Once I have sync the audio (Dat) with the audio of the image, at the beginning of the clip it´s fine, but with clips which are long, starts to delay as time goes by. So at the end of the clip is complety out of sync, but at the beginning was ok.

The audio of the Dat it´s at 48kh/ 24 bit floating. and in my sequence it´s at 48k but the audio format it´s at 32 bit floating point. ¿Could be this the problem? What can I do?
I have check the Vid rate of the sequence and it´s 24 frames/second, it was shoot at that speed.

Please, help me, all suggestions are absolutely welcome.

Thank you very much.

 

[Martin Weiss]

Real name, please.

 

[Trailangel]

Open a new sequence at 23.976 and bring into that.


My real name is Angel Waldron.

 

[Chuska]

Hello, thank you for your answer. My name is Ana Martin
Could you be so kind to please explain me why the secuence at 23.976. This is related to NTSC system? Thank you again, my

 

[Trailangel]

Because that's what you probably shot it at.

 

[Chuska]

Hi thank you.

The thing is that we shooted with the Red One, and with the Red Rushes we transcoded the material to Apple Pro Res. And when I imported the clips on the Final Cut, and they appear as 24 frames per second. Them I open a sequence ( I don´t know in what code is it) and them when I drag a clip to the sequence, Final asks me to change the settings, and I said yes. So the sequence it´s at the same 24 frames per second.

So, I wonder how could be that if Red Rushes trascoded the material, did it badly?
Shouldn´t be exactly?
I have the original material of the Red One, where or How I can look to see the exactly frame rate of the originals.
Thank you so much and Have a nice day.

 

[Brian Ferguson]

Hello, thank you for your answer. My name is Ana Martin
Could you be so kind to please explain me why the secuence at 23.976. This is related to NTSC system? Thank you again, my

Yes it is related to NTSC 23.976 (same as 23.98) is compatible with NTSC 29.97 and 59.94 Which is mostly North America, some of S. America and Japan

Most other countries shoot at 25 frames for TV sync.

 

[Trailangel]

How long does it take to open a new sequence and drag a clip into it?

 

[Brooks Harrington]

Quite awhile

 

[Cail Young]

Unfortunately FCP (still) doesn't like some BWF recorders' 24.00 TC stamp and will do its damnedest to "correct" the "incorrect" audio file when bringing it into a 24.00 sequence.

You need to rewrap the audio in 24.00fps MOV files, then FCP will not mess with them. This may break audio timecode, so be careful how you do it.