[Sera Pickering pick]

Hi there,

I just came across a similar problem to yours and I think I’ve worked out the way around it, hopefully this is of some use to you or anyone else that stumbles upon this thread:

I’ve been shooting on my iPhone 4S, (Quicktime plays them without sync slippage and displays the following settings: H264, 1920×1080, AAC, 44100 Hz)
So I transcoded the footage in MPEG Streamclip to Apple Pro Res 422 Proxy to edit (i often use proxy, smaller file size with very little loss of quality) and I didn’t pay much attention to the settings except to get the frame rate right. Weirdly some clips I’ve filmed are 29.97fps and some are 24, but that’s a confusing matter for another day.

I brought the footage into FCP7, saying yes to the dialogue box to change the sequence settings to match the clips. But after some trouble shooting, I found that the sequence settings were not actually changing the audio from 48khz to 44.1 khz to match the footage, hence the slippage. So I changed it manually and re-imported my footage. I also found I had to re-transcode the footage (no idea why) and select 44.1khz instead of ‘Auto’ in the sound settings.

There’s definitely something buggy going on, but that worked for me.

Now to try and understand why some stuff i shot is at 29.97 and some is at 24fps…. Hmmm.

Sera