editing SD in and HDV timeline….

[Beenice]

So I took my SD clip into compressor and upconverted it to HDV 1080i 60.

When dropped it onto my HDV timeline it requires no rendering and matches up with the other native HDV clips (frame size wise)

Although when the upconverted clip is played in the viewer and on the timeline, at first the audio and video is synced but then quickly becomes un-synced. The video speeds up while the audio remains normal.

I then exported this upconverted clip to quicktime and viewed it through the QT player. The clip is then synced and normal.

What would cause FCP to mess up sync? Should I upconvert differently? If so, how?

Any insight?

Thanks,
-B

[Andy Mees]

hey bee

I posted back on your other thread (apple). I’ll copy it here for you too, if only to bump this up the list in case anyone has useful input :

I do this all the time. Well SD on an HD timeline anyway. I blow it up to fit the width using nothing more than the scale property.

Does it look good? Not as compared to the HD, no. But I’m not trying to hide it either. I use mixed sources and my viewers know this, maybe not explicitly, but they know.

I do have to render this SD footage in my HD timeline (FCP5), but I don’t have any sync issues.

For best results you should do a hardware upconvert, if you have access to the appropriate hardware of course. I always prefer to upconvert by running the SD into my HD deck and letting the deck upconvert to my timeline native format, and then capture native.

All that said and done, what is causing your sync loss issue?? Lordy, I don’t know! Could it be a frame rate / drop frame mismatch? I have always lived and worked in lovely PAL land, so all that drop frame nonsense is gobbledygook to me 🙂

Hope you can figure this out.

[Beenice]

Thanks again Andy…