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Old 09-28-2018, 01:53 PM
audioluche audioluche is offline
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Default Short film mixed in stereo: problematic in theaters?

Hi,

I am an experienced music mixer who did a couple of jobs in TV in the last years, but never for movies.

I just did the mix for a short film. Everything was mixed in stereo.
My question is, how will the stereo mix translate in theatres?

Will it play only in the left and right channels or will it have some information on the centre channel?

Do I have to print a LCR version to ensure that it sound right in the theatre?

If yes, can I do this easily in Pro tools without re routing everything?
As I said, I mix music, so my monitoring is in stereo...

Sorry for the dumb questions and thanks in advance for your help!

Luc
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Old 09-28-2018, 02:54 PM
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Ryan Young Ryan Young is offline
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Default Re: Short film mixed in stereo: problematic in theaters?

If you deliver stereo I believe they'll play stereo. Theaters don't do home theater receiver types of "up-mixing", as far as I know.
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Old 09-29-2018, 09:51 AM
Cheesehead Cheesehead is offline
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Default Re: Short film mixed in stereo: problematic in theaters?

I have taken stereo to a theatre and got the projectionist to decode it as Dolby Digital (LtRt) through the Dolby box.


At least that way it will send all the mono information, ie mostly dialogue, to the centre speaker.


Stereo playback in theaters is bad in general, it will only use the left and right speakers and because phantom centre doesn't work in a large space apart from in a few seats there will be a huge hole in the middle of the soundstage.



There are many plugins available you can up-mix through and get a decent result if you want to create a rough 5.1 or LCR mix from your stereo.
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Old 09-30-2018, 07:00 PM
philper philper is offline
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Default Re: Short film mixed in stereo: problematic in theaters?

With the advent of DCP theatres (etc) are even more reluctant to changes settings on a Dolby box to accommodate LtRt or LoRo. If you think your show will play in any sort of real movie theatre (that also shows regular studio type films) then you should consider up- or re-mixing to at least LCR and making a DCP of the film. Your life showing the film will be immensely less stressful.
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Old 09-30-2018, 07:13 PM
bsteeve bsteeve is offline
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Default Re: Short film mixed in stereo: problematic in theaters?

Quote:
Originally Posted by audioluche View Post
Hi,

I am an experienced music mixer who did a couple of jobs in TV in the last years, but never for movies.

I just did the mix for a short film. Everything was mixed in stereo.
My question is, how will the stereo mix translate in theatres?

Will it play only in the left and right channels or will it have some information on the centre channel?

Do I have to print a LCR version to ensure that it sound right in the theatre?

If yes, can I do this easily in Pro tools without re routing everything?
As I said, I mix music, so my monitoring is in stereo...

Sorry for the dumb questions and thanks in advance for your help!

Luc
Yes I would at the very minimum put all the dialog in the centre speaker. Stereo mixes don’t sound that great in theaters. I wouldn’t use any upmixing plug in on a the stereo mix either... this creates all sorts of phasing issues.
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Old 10-01-2018, 01:45 PM
audioluche audioluche is offline
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Default Re: Short film mixed in stereo: problematic in theaters?

Thanks to all for your reply.
Exactly the kind of info i was looking for.
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Old 10-01-2018, 01:53 PM
audioluche audioluche is offline
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Default Re: Short film mixed in stereo: problematic in theaters?

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Originally Posted by bsteeve View Post
Yes I would at the very minimum put all the dialog in the centre speaker. Stereo mixes don’t sound that great in theaters. I wouldn’t use any upmixing plug in on a the stereo mix either... this creates all sorts of phasing issues.

What would be the best way to do this, as i am monitoring in stereo?
I could add another speaker to monitor the center channel if i re route everything to LCR in Pro Tools but monitoring L/R in my Barefoots and the center in an auratone would be verry weird...


If i use an upmix plugin, can i trust the result without hearing it in a proper LCR monitoring environnement?


Thanks!
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Old 10-01-2018, 01:54 PM
audioluche audioluche is offline
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Default Re: Short film mixed in stereo: problematic in theaters?

Quote:
Originally Posted by philper View Post
With the advent of DCP theatres (etc) are even more reluctant to changes settings on a Dolby box to accommodate LtRt or LoRo. If you think your show will play in any sort of real movie theatre (that also shows regular studio type films) then you should consider up- or re-mixing to at least LCR and making a DCP of the film. Your life showing the film will be immensely less stressful.



Yes. The short will be projected in all sort of movie theatres.
So it has to be in a format i can trust...
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  #9  
Old 10-01-2018, 04:36 PM
bsteeve bsteeve is offline
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Default Re: Short film mixed in stereo: problematic in theaters?

Quote:
Originally Posted by audioluche View Post
What would be the best way to do this, as i am monitoring in stereo?
I could add another speaker to monitor the center channel if i re route everything to LCR in Pro Tools but monitoring L/R in my Barefoots and the center in an auratone would be verry weird...


If i use an upmix plugin, can i trust the result without hearing it in a proper LCR monitoring environnement?


Thanks!
I mean you could send all the dialog to one channel, solo it, pan it full L or full R to listen to the dialog mix only coming from one speaker only, then pan it back to C.

However there is no way you could check the balance like this.. can you borrow a speaker from someone that would be somewhat the same power output as your barefoots?

Also beware that if you are mixing in a nearfield environment, the balance wont necessarily translate in a Theatrical environment. Generally speaking you might want to turn everything routed in the Centre channel up a little.

I use to work at post studio mixing in a nearfield environement but we had a gigantic real cinema at the back (the studio I worked at was owned by a cinema chain), I often use to jump in there to check my mixes.. and every-time I thought my balance was right in my mix room, the dialog (centre channel) was on the softer side in the theatre.
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Old 10-01-2018, 04:56 PM
KingTor KingTor is offline
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Default Re: Short film mixed in stereo: problematic in theaters?

I would recommend booking a print matter on a mix stage that does this frequently. It shouldn't take long, but it's the only way to be confident that it'll play back as intended in a variety of treaters. IMHO.

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