Premiere CC wrong playback speed for 50p at DVinfo.net

Geoffrey Cox · May 26th, 2016, 06:07 AM

Hi
I'm starting a project using 1920x1080p 50fps 16bit LPCM footage from a Canon C100 MKII. When I import the clips into CC 2015 it seems to see them OK and the clip info data is all correct (including saying the clips are 50p) but playback is always at half speed (or thereabouts) as if it is seeing the clips at 25p. Audio plays back normally but then cuts off half way through (or sometimes later) and the clip also seems to get more jittery as it plays. I have tried CS6 and that is the same.

I have tried importing clips straight from the memory card (AVCHD) and as ProRes conversions (using ClipWrap), and using all the different ways to set up the correct sequence (manually, automatically etc) I can think of. Nothing changes except sometimes the audio doesn't play at all. Oh, all the clips play absolutely fine in VLC, QT7 etc

I am newish to Premiere (ex FCP) and 50p too but clearly something is badly wrong here. Any clues, advice?

Thanks.

Oh, I use the Matrox mini too to connect to my monitor but I don't think that is an issue as the clips play slow in the Premiere window itself as well as via the Matrox

Gary Huff · May 26th, 2016, 07:09 AM

What is your sequence set to? 50p?

Geoffrey Cox · May 26th, 2016, 07:16 AM

OK I've 'solved' it. Turns out the Matrox cannot cope with 50p and it looks like it never will. Unplug it all everything plays fine but I can't monitor properly!

What do others do for external monitoring of 50p footage? I use a MBP btw (Yosemite at present).

Geoffrey Cox · May 26th, 2016, 07:26 AM

Quote:

Originally Posted by Gary Huff

What is your sequence set to? 50p?

Yeah everything is set correctly. The Matrox is the problem. So now I need another monitoring solution.

Actually the HDMI output of the Mac straight to the TV monitor looks pretty good. Guess that is the simplest way to go.

Juris Lielpeteris · June 2nd, 2016, 11:54 AM

For Blackmagic Intensity Pro is enough to use 50i sequence instead to 50p for correct playback of 50p. May be for Matrox too...

Geoffrey Cox · June 3rd, 2016, 06:58 AM

Thanks - interesting idea. The problem with Premiere is that I can't see any way of changing the output to 50i without creating a 50i sequence which would be wrong for the project. On the old FCP you could specify any output for whatever sequence. Is there a way to do this on Premiere?

Alan Craven · June 3rd, 2016, 07:20 AM

With Premiere CS6, I regularly mix 50p from a Canon XA20 with 25p from an EX3 on the same timeline. It does not matter whether I use a 25p timeline or a 50p timeline, both play correctly. I have a TV monitor connected to the HDMI output of my 680GTX graphics card.

I tried a Blackmagic Intensity for a while after abandoning my Matrox mini, but found it not worth the inconvenience. It would not give an output to the monitor with a 50p timeline.

Jack Zhang · June 3rd, 2016, 10:52 PM

I also advise against the Intensity Pro 4K because the firmware is still incredibly buggy, causing system instability to all systems it's been tested in.

May 26th, 2016, 06:07 AM	#1
Geoffrey Cox Major Player Join Date: Aug 2008 Location: Huddersfield, UK Posts: 469	Premiere CC wrong playback speed for 50p Hi I'm starting a project using 1920x1080p 50fps 16bit LPCM footage from a Canon C100 MKII. When I import the clips into CC 2015 it seems to see them OK and the clip info data is all correct (including saying the clips are 50p) but playback is always at half speed (or thereabouts) as if it is seeing the clips at 25p. Audio plays back normally but then cuts off half way through (or sometimes later) and the clip also seems to get more jittery as it plays. I have tried CS6 and that is the same. I have tried importing clips straight from the memory card (AVCHD) and as ProRes conversions (using ClipWrap), and using all the different ways to set up the correct sequence (manually, automatically etc) I can think of. Nothing changes except sometimes the audio doesn't play at all. Oh, all the clips play absolutely fine in VLC, QT7 etc I am newish to Premiere (ex FCP) and 50p too but clearly something is badly wrong here. Any clues, advice? Thanks. Oh, I use the Matrox mini too to connect to my monitor but I don't think that is an issue as the clips play slow in the Premiere window itself as well as via the Matrox

May 26th, 2016, 07:09 AM	#2
Gary Huff Inner Circle Join Date: Jan 2013 Location: Austin, Texas Posts: 2,006	Re: Premiere CC wrong playback speed for 50p What is your sequence set to? 50p?

May 26th, 2016, 07:16 AM	#3
Geoffrey Cox Major Player Join Date: Aug 2008 Location: Huddersfield, UK Posts: 469	Re: Premiere CC wrong playback speed for 50p OK I've 'solved' it. Turns out the Matrox cannot cope with 50p and it looks like it never will. Unplug it all everything plays fine but I can't monitor properly! What do others do for external monitoring of 50p footage? I use a MBP btw (Yosemite at present).

June 2nd, 2016, 11:54 AM	#5
Juris Lielpeteris Major Player Join Date: Oct 2012 Location: Riga, Latvija, EU Posts: 292	Re: Premiere CC wrong playback speed for 50p For Blackmagic Intensity Pro is enough to use 50i sequence instead to 50p for correct playback of 50p. May be for Matrox too...

June 3rd, 2016, 06:58 AM	#6
Geoffrey Cox Major Player Join Date: Aug 2008 Location: Huddersfield, UK Posts: 469	Re: Premiere CC wrong playback speed for 50p Thanks - interesting idea. The problem with Premiere is that I can't see any way of changing the output to 50i without creating a 50i sequence which would be wrong for the project. On the old FCP you could specify any output for whatever sequence. Is there a way to do this on Premiere?

June 3rd, 2016, 07:20 AM	#7
Alan Craven Major Player Join Date: May 2003 Location: York, England Posts: 518	Re: Premiere CC wrong playback speed for 50p With Premiere CS6, I regularly mix 50p from a Canon XA20 with 25p from an EX3 on the same timeline. It does not matter whether I use a 25p timeline or a 50p timeline, both play correctly. I have a TV monitor connected to the HDMI output of my 680GTX graphics card. I tried a Blackmagic Intensity for a while after abandoning my Matrox mini, but found it not worth the inconvenience. It would not give an output to the monitor with a 50p timeline.

June 3rd, 2016, 10:52 PM	#8
Jack Zhang Inner Circle Join Date: May 2005 Location: Burnaby, BC, Canada Posts: 3,053	Re: Premiere CC wrong playback speed for 50p I also advise against the Intensity Pro 4K because the firmware is still incredibly buggy, causing system instability to all systems it's been tested in.