25p to 23.98fps conversion
 

Hi

Im editing in FCP at 1280x720 25p and need to now output my project as an NTSC DVD.

The best method I have found is using cinema tools to conform to 23.98 (then burn a NTSC DVD at 23.98p). However, when I do this the audio is out of sync. I cannot for the life of me work out why.

Also, if I try and time stretch the audio in Soundtrack Pro, it doesnt work. It should be 4.08% difference but the audio still becomes progressively out of sync. So mathematically, it must progress from 4.08%

I tried just doing the conversion in compressor but my graphics were jerky and not smooth.

Out of time and back against the wall on this project. Would appreciate any help / suggestions.

Thanks

Trevor

videotoolshed.com makes a lot of conversion utilities for FCP. Don't know if they make a utility for your specific issue though.

These may be helpful:Nattress: Standards Conversion: Standards Converter V2.5

Since when is the NTSC frame rate 23.98fps.... Has the standard been changed from 29.97?

Ben

As Ben says ... NTSC video is ALWAYS 29.97 FPS.

If you've shot 25p then one retimes it to 23.976 and adds pulldown to give 60i AKA NTSC.

Why?

That opens you up to all sorts of issues, like Trevor has.
Why not stick to a common broadcast standard, then save yourself headaches and nightmares?

Besides, because its 60 frames a sec, interlaced does not mean it is NTSC...

Thats a bit like shooting a PAL project, then converting it to NTSC 720 wide, then converting to 480 wide, then uprezzing to BluRay at 1080i, then back to PAL 720... You are frought with danger and will result in a lousy image with poor audio and synch problems at the end of the day.

Stick with the broadcast standard, and you wont have a headache.

2.2 c worth, including tax

Ben

value added tax, right mate ? <g>

YEP!

Down here its called GST.
Goods and Services Tax...

Payable on bloody everything.... :(


Ben