Can Stereo sound become 5.1 after render to DCP?

Anything and everything to do with DCP-o-matic.
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Dark knight
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Joined: Wed Jun 22, 2022 5:13 am

Can Stereo sound become 5.1 after render to DCP?

Post by Dark knight »

I want to make my short movie, Drama (Apple Prores 4444, stereo) 4k. To DCP, only the problem is they want 5.1 channel audio. If I choose on audio setting to 5.1 channels can it render automaticly from stereo to 5.1?

And the system said my audio level is to high, how much gain in db that should I drop down?
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Carsten
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Location: Germany

Re: Can Stereo sound become 5.1 after render to DCP?

Post by Carsten »

That looks like a dual mono track. Two channels, but with more or less the same signal on both channels. Is this intended? What type of audio is it?
Dark knight
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Joined: Wed Jun 22, 2022 5:13 am

Re: Can Stereo sound become 5.1 after render to DCP?

Post by Dark knight »

Yes, the source it's dual channel but, can I convert it to 5.1? Just like mono to stereo.
Carsten
Posts: 2122
Joined: Tue Apr 15, 2014 9:11 pm
Location: Germany

Re: Can Stereo sound become 5.1 after render to DCP?

Post by Carsten »

A mono source is very little to work on for an upmixer. DCP-o-matic can not do it. There are some commercial upmixers that are able to do some spectral and phase separations. They may make the track sound a bit more 'interesting', but usually don't make 'sense', as an L/C/R upmixer based on a stereo signal does.


Now, if 'they' demand 5.1 audio, I can only guess that all they want is a 5.1 track - not that there is actual signal in all 6 channels. The default setting in DCP-o-matic is to create a 5.1 audio track. S, if you put that dual-mono track into your DCP, you will get a 5.1 track with signal in L and R only. Which should be fine.
Dark knight
Posts: 4
Joined: Wed Jun 22, 2022 5:13 am

Re: Can Stereo sound become 5.1 after render to DCP?

Post by Dark knight »

What name of that application? Btw thanks for the info
Dark knight
Posts: 4
Joined: Wed Jun 22, 2022 5:13 am

Re: Can Stereo sound become 5.1 after render to DCP?

Post by Dark knight »

Thank you so much for the info
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