28 Aug
2013
28 Aug
'13
10:11 a.m.
Hello!
Yesterday I made 3 versions of a DCP with a little video, and because
its mono, I wanted to try how it would sound like when the audio is C,
LR and LCR. So I exported a mono uncompressed wav file from Adobe
Premiere. I tried to listen to the file with VLC Player and looked at
the codec (PCM L16 SE) and thought everything was fine. But in the
cinema, the sound was only LR, no matter what, and was pitched down like
crazy. Didn?t sound good at all :)
What did i do wrong? Is there a problem that the video file has audio
too, and i just choosed external audio, is the video file not allowed to
have audio?
And my secound question, I?m not sure what "pad with silence to X
channels" does and what I do with it. It?s not written in the manual.
Can I get a short explanation?
Thanks and greetings from Vienna!
Andi
28 Aug
28 Aug
10:38 a.m.
Hi Andi,
May you try with
pcm_s24le
for sound codec
with a 48kHz sample rate
This should fix the pitch down problem.
(PCM L16 SE is not DCI compliant)
Best regards,
Gerald
Le 28/08/2013 12:11, Andreas Eli a écrit :
Hello!
Yesterday I made 3 versions of a DCP with a little video, and because
its mono, I wanted to try how it would sound like when the audio is C,
LR and LCR. So I exported a mono uncompressed wav file from Adobe
Premiere. I tried to listen to the file with VLC Player and looked at
the codec (PCM L16 SE) and thought everything was fine. But in the
cinema, the sound was only LR, no matter what, and was pitched down
like crazy. Didn´t sound good at all :)
What did i do wrong? Is there a problem that the video file has audio
too, and i just choosed external audio, is the video file not allowed
to have audio?
And my secound question, I´m not sure what "pad with silence to X
channels" does and what I do with it. It´s not written in the manual.
Can I get a short explanation?
Thanks and greetings from Vienna!
Andi
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11:52 a.m.
Hi Andreas,
On Wed, 28 Aug 2013 12:11:53 +0200
Andreas Eli <andreaseli.kino(a)gmail.com> wrote:
Hello!
Yesterday I made 3 versions of a DCP with a little video, and because
its mono, I wanted to try how it would sound like when the audio is C,
LR and LCR. So I exported a mono uncompressed wav file from Adobe
Premiere. I tried to listen to the file with VLC Player and looked at
the codec (PCM L16 SE) and thought everything was fine. But in the
cinema, the sound was only LR, no matter what, and was pitched down like
crazy. Didn?t sound good at all :)
What did i do wrong? Is there a problem that the video file has audio
too, and i just choosed external audio, is the video file not allowed to
have audio?
I would guess that you ended up with a DCP with a strange number of channels
that your projector didn't like. I would try enabling pad with silence
and setting the number of channels to 6.
And my secound question, I?m not sure what "pad
with silence to X
channels" does and what I do with it. It?s not written in the manual.
Can I get a short explanation?
It will add silent audio channels to your DCP up to the specified number.
If, for example, you have a stereo source and you set "pad" to 6, you will end
up
with L and R having your source material and C, Lfe, Ls and Rs all being silent.
This helps in some cases where projectors don't like certain numbers
of sound channels (e.g. just one).
Best regards
Carl
4261
days inactive
4261
days old
2 comments
3 participants
participants (3)
-
Andreas Eli -
Carl Hetherington -
Gérald Maruccia