RE: Video and Audio have different number of frames / Testing DCP
Stephen van Vuuren
Check to make sure it’s not picture or audio at 23.976 vs. 24.000 (DCP 24fps is 24.000)
stephen van vuuren
http://www.insaturnsrings.com/
A film is – or should be – more like music than like fiction. It should be a progression of moods and feelings. The theme, what’s behind the emotion, the meaning, all that comes later.
–Stanley Kubrick
From: ope...@googlegroups.com [mailto:ope...@googlegroups.com] On Behalf Of Ben Edwards
Sent: Friday, May 03, 2013 1:32 PM
To: ope...@googlegroups.com
Subject: Video and Audio have different number of frames / Testing DCP
Hi, sorry, me again;). In some ways this is not strictly a question for this forum but as those with experience of creating DCP using openDCP are here hopefully it is appropriately. Basically when I bring the video and audio MXF files into OpenDCP to create DCP I am getting different number of frames even though the video and audio is exported from the same video. My workflow is thus:
- Create a sequence with DCP friendly dimensions in Premier Pro
- Export the film to Adobe Media Encoder (AME)
- Export a JPEG 2000 sequence using the http://www.fnordware.com/j2k/ plugin for AME.
- Export a stereo WAV file from AME
- Load WAV into Adobe Audition, split it into 2 mono tracks and export them.
- Use OpenDCP to create a picture.mxf and audio.mxf
- In the DCP tab of OpenDCP load the two mxf files.
This is where the problem is, they show up as a different number of frames. Picture is 5885, audio is 5910. Any ideas why thins is?
Real shame because apart from this is it s really sweet workflow.
The other question is are there any free DCP players I can use to test. The only one I can find (trial) only plays firs 15 seconds. I dont care if it a demo version with a bit watermark but doet want to pay $1000. It may be that I can just loose the audio frames and all will be well but without being able to play it who knows;(.
Regards,
Ben
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Very Important Fish
Eric Sebalsky
Reed Sullivan
From: Eric Sebalsky <seb.l...@gmail.com>
Reply-To: <ope...@googlegroups.com>
Date: Wed, 11 May 2016 06:55:08 -0700 (PDT)
To: opendcp <ope...@googlegroups.com>
Cc: <ste...@sv2studios.com>
Subject: Re: Video and Audio have different number of frames / Testing DCP
as stephen already mentioned it is most likely the 0,1% discrepancy due to 23,98fps for sound and 24 for video. most audio suits like pro tools only know 23,98 even if they tell you they are 24. it's very easy to remaster audio to 24 though, just speed it up by 0,1% in a good audio software and make sure frame numbers fit afterwards!
On Tuesday, May 10, 2016 at 11:37:23 PM UTC+2, Very Important Fish wrote:
Hi Ben, I have had the problem with sound and video frames not matching and found out that the sound does not sync with the video when played on jpeg 2000 projector. I am now trying to find out why the frames don't match.
Reed
On Friday, May 3, 2013 at 1:36:30 PM UTC-6, Stephen van Vuuren wrote:
Check to make sure it’s not picture or audio at 23.976 vs. 24.000 (DCP 24fps is 24.000)
stephen van vuuren
336.202.4777
http://www.insaturnsrings.com/ <http://www.insaturnsrings.com/>
http://www.sv2dcp.com/ <http://www.sv2dcp.com/>
http://www.sv2studios.com/ <http://www.sv2studios.com/>
A film is – or should be – more like music than like fiction. It should be a progression of moods and feelings. The theme, what’s behind the emotion, the meaning, all that comes later.
–Stanley Kubrick
From: ope...@googlegroups.com [mailto:ope...@googlegroups.com] On Behalf Of Ben Edwards
Sent: Friday, May 03, 2013 1:32 PM
To: ope...@googlegroups.com
Subject: Video and Audio have different number of frames / Testing DCP
Hi, sorry, me again;). In some ways this is not strictly a question for this forum but as those with experience of creating DCP using openDCP are here hopefully it is appropriately. Basically when I bring the video and audio MXF files into OpenDCP to create DCP I am getting different number of frames even though the video and audio is exported from the same video. My workflow is thus:
This is where the problem is, they show up as a different number of frames. Picture is 5885, audio is 5910. Any ideas why thins is?
- Create a sequence with DCP friendly dimensions in Premier Pro
- Export the film to Adobe Media Encoder (AME)
- Export a JPEG 2000 sequence using the http://www.fnordware.com/j2k/ plugin for AME.
- Export a stereo WAV file from AME
- Load WAV into Adobe Audition, split it into 2 mono tracks and export them.
- Use OpenDCP to create a picture.mxf and audio.mxf
- In the DCP tab of OpenDCP load the two mxf files.
Real shame because apart from this is it s really sweet workflow.
The other question is are there any free DCP players I can use to test. The only one I can find (trial) only plays firs 15 seconds. I dont care if it a demo version with a bit watermark but doet want to pay $1000. It may be that I can just loose the audio frames and all will be well but without being able to play it who knows;(.
Regards,
Ben
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