6 Mar
2015
6 Mar
'15
12:51 p.m.
Hello!
I need a little help, maybe someone knows what I am doing wrong.
1. When I make a DCP (using DCP-o-Matic 1.77) and set the audio channels
in the DCP Tab to 1, for a mono DCP, I end up with seeing only the left
channel in the Content/Audio Tab. So rooting the audio to the center is
not possible. When I do it before setting the audio channels to 1, I can
root the audio to the center, but the DCP has no Audio at all in the
end. And when I try to ingest it, the Doremi says "Unsupported odd
number of audio channels(1)". Ingest Error.
2. When I try to make a 3.0 DCP by rooting the left and right channel
also to the center and set the audio channels to 3, the Doremi is also
not happy and doesnt ingest it. I know, 3.0 is not a DCI compliant, so
maybe thats the reason and the solution is to not choose it? Possible
workaround could be to set the DCP Name by hand and not use ISDCF Name.
Setting audio channels to 6 and name it _30_ in the title, right?
Thanks for your help!
Andi
6 Mar
6 Mar
1:07 p.m.
Hi Andreas - you always need to set an even number of audio channels under the DCP tab -
that is 2,4,6...
You then choose the necessary routing in the content audio tab. For mono or L/C/R, you
will necessarily have to create a 4ch DCP, leaving L, R, and LFE/Sub empty/unassigned.
Some people even suggest to always create 5.1 audio, even if 5 of those channels would
eat up quite some unnecessary space.
We discussed this issue a couple of times already. One of the nice features of DCP-o-matic
is that it always tries to create a valid DCP structure, no matter what input format you
feed it. Currently this is not true for audio channel packaging - you see hints regarding
the number of audio channels, but only if you look for them, and it doesn't prevent
the creation of audio files with an odd number of channels, and these fail on most
servers.
In my opinion, DCP-o-matic should force the user to use only an even number of audio
channels, that is, make only 2,4,6... selectable.
I was trying to get information regarding the proper formal audio specs through the ISDCF
Forum (the specs are SMPTE documents now and they are not freely available), but so far
received no answer.
- Carsten
Am 06.03.2015 um 13:51 schrieb Andreas Eli via DCPomatic:
Hello!
I need a little help, maybe someone knows what I am doing wrong.
1. When I make a DCP (using DCP-o-Matic 1.77) and set the audio channels in the DCP Tab
to 1, for a mono DCP, I end up with seeing only the left channel in the Content/Audio Tab.
So rooting the audio to the center is not possible. When I do it before setting the audio
channels to 1, I can root the audio to the center, but the DCP has no Audio at all in the
end. And when I try to ingest it, the Doremi says "Unsupported odd number of audio
channels(1)". Ingest Error.
2. When I try to make a 3.0 DCP by rooting the left and right channel also to the center
and set the audio channels to 3, the Doremi is also not happy and doesnt ingest it. I
know, 3.0 is not a DCI compliant, so maybe thats the reason and the solution is to not
choose it? Possible workaround could be to set the DCP Name by hand and not use ISDCF
Name. Setting audio channels to 6 and name it _30_ in the title, right?
Thanks for your help!
Andi
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1:22 p.m.
Am 06.03.2015 um 14:07 schrieb Carsten Kurz via DCPomatic:
Hi Andreas - you always need to set an even number of
audio channels under the DCP tab - that is 2,4,6...
And yes, that means, even for silent movies, you have to create at least 2 channels
digital silence. But DCPomatic will take care of creating the silent channels for you. You
don't have to feed digital silence audio files to it. Just set e.g. 2 or 4ch under DCP
and leave unused channels unassigned in the audio matrix.
- Carsten
1:28 p.m.
So my workaround with naming the DCP by hand is necessary when I create
a mono DCP. Set the channels to 6 and name it _10_.
Thanks very much for your help!
Andi
Am 06.03.2015 um 14:22 schrieb Carsten Kurz via DCPomatic:
Am 06.03.2015 um 14:07 schrieb Carsten Kurz via
DCPomatic:
Hi Andreas - you always need to set an even
number of audio channels under the DCP tab - that is 2,4,6...
And yes, that means, even for silent movies, you have to create at least 2 channels
digital silence. But DCPomatic will take care of creating the silent channels for you. You
don't have to feed digital silence audio files to it. Just set e.g. 2 or 4ch under DCP
and leave unused channels unassigned in the audio matrix.
- Carsten
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1:45 p.m.
Am 06.03.2015 um 14:28 schrieb Andreas Eli via DCPomatic:
So my workaround with naming the DCP by hand is
necessary when I create a mono DCP. Set the channels to 6 and name it _10_.
Thanks very much for your help!
Hmm, yes, that would be the correct way. Currently no one cares if they receive a 5.1 DCP
with only the center channel being populated, and you can always add a leaflet explaining
it.
But currently, yes the proper way to create a Mono DCP would be to set 4ch under DCP,
assign the single input channel to C, uncheck L/R/LFE, then click 'Copy ISDCF
name' under DCP tab, and correct the name from _51_ to _10_
Carl, I think it would be possible to create the ISDCF name not from the DCP channel count
setting, but to compute it from the effective assigned channels in the content audio tab?
It's a bit confusing, I admit, but even ISDCF is not so happy with the audio type
assignments.
- Carsten
2:27 p.m.
Hi all,
But currently, yes the proper way to create a Mono DCP
would be to set 4ch under DCP, assign the single input channel to C, uncheck L/R/LFE, then
click 'Copy ISDCF name' under DCP tab, and correct the name from _51_ to _10_
Carl, I think it would be possible to create the ISDCF name not from the DCP channel
count setting, but to compute it from the effective assigned channels in the content audio
tab?
It's a bit confusing, I admit, but even ISDCF is not so happy with the audio type
assignments.
Agreed, that's:
http://carlh.net/mantis/view.php?id=479
also on the channel count being forced to be even:
http://carlh.net/mantis/view.php?id=515
Cheers,
Carl
7 Mar
7 Mar
5:11 p.m.
New subject: [DCP-o-matic] Suggestion about length for still images
Hello,
I know it will sound weird but this might be useful for creating short
animated DCP from still images :
is there a way to set the duration/length of one still image to, well,
the length of one frame depending on the framerate, most commonly 1/24
second ?
We could even imagine an "animation" mode to the length table where
duration would be displayed in number of frames (instead of time actually)…
Any thoughts or advices ?
Best regards,
Gérald
6:25 p.m.
New subject: [DCP-o-matic] Suggestion about length for still images
I wrote too fast…
…my "problem" is :
in "preferences" the default length for still images can not be adjusted
under 1 second.
Le 07/03/2015 18:11, Gérald Maruccia via DCPomatic a écrit :
Hello,
I know it will sound weird but this might be useful for creating short
animated DCP from still images :
is there a way to set the duration/length of one still image to, well,
the length of one frame depending on the framerate, most commonly 1/24
second ?
We could even imagine an "animation" mode to the length table where
duration would be displayed in number of frames (instead of time
actually)…
Any thoughts or advices ?
Best regards,
Gérald
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14 Mar
14 Mar
10:06 p.m.
New subject: [DCP-o-matic] Suggestion about length for still images
On Sat, 07 Mar 2015 19:25:51 +0100
Gérald Maruccia via DCPomatic <dcpomatic(a)carlh.net> wrote:
I wrote too fast…
…my "problem" is :
in "preferences" the default length for still images can not be
adjusted under 1 second.
OK, makes sense, I've put that on the list:
http://carlh.net/mantis/view.php?id=522
Regards,
Carl
Le 07/03/2015 18:11, Gérald Maruccia via DCPomatic a écrit :
--
Hello,
I know it will sound weird but this might be useful for creating
short animated DCP from still images :
is there a way to set the duration/length of one still image to,
well, the length of one frame depending on the framerate, most
commonly 1/24 second ?
We could even imagine an "animation" mode to the length table where
duration would be displayed in number of frames (instead of time
actually)…
Any thoughts or advices ?
Best regards,
Gérald
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7 Mar
7 Mar
6:35 p.m.
New subject: [DCP-o-matic] Suggestion about length for still images
For a single frame duration it works as an image sequence, already supported.
I have said a few times that I don't like when dcpomatic do too many
"video" things, like having a timeline. But, your proposed feature
would have been useful recently with a couple cases of material
produced at 50fps by error that needed to be changed to 25fps for
compatibility. The prores can be done anywhere but a 50 fps DCP, well,
not so easy to modify except in dcpomatic2 ;)
On a related note, for those of you that doesn't know it meet JES
deinterlacer http://jeschot.home.xs4all.nl/home.html That thing is
amazing at changing framerate.
Manuel AC
On Sat, Mar 7, 2015 at 12:11 PM, Gérald Maruccia <dcpomatic(a)carlh.net> wrote:
Hello,
I know it will sound weird but this might be useful for creating short
animated DCP from still images :
is there a way to set the duration/length of one still image to, well, the
length of one frame depending on the framerate, most commonly 1/24 second ?
We could even imagine an "animation" mode to the length table where duration
would be displayed in number of frames (instead of time actually)…
Any thoughts or advices ?
Best regards,
Gérald
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9:56 p.m.
New subject: [DCP-o-matic] Suggestion about length for still images
For a single frame duration it works as an image
sequence, already supported.
Well, except if I want some particular frame to last
more than just the
time of one frame…
…but my description of the suggestion was wrong, let's forget about the
"animation-table", it's just the default duration of a still image in
preferences that prevents me to do faster what I need : set a specific
duration on some specific frame(s) amongst many more frames that each
"last" 1/24s.
For the moment I have to do the opposite : change the duration of almost
all the frames since you can set default duration under 1 second.
My poor english, once again.
Gerald
9 Mar
9 Mar
11:51 a.m.
New subject: [DCP-o-matic] Suggestion about length for still images
For the moment I have to do the opposite : change the
duration of
almost all the frames since you can
*…errr, typo = since you can NOT set**…*
set default duration under 1 second.
My poor english, once again.
Gerald
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3697
days inactive
3705
days old
11 comments
5 participants
participants (5)
-
Andreas Eli -
Carl Hetherington -
Carsten Kurz -
Gérald Maruccia -
Manuel AC