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How to create 5.1 Dolby in compressor? (I have the 6 individual files)
Hey guys,
Need help for creating 5.1 Dolby for DVD in compressor.
I have all of the needed 6 files in .wav form
I just need someone to tell me how or link me to information as to how to do this process.
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4 Replies
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Open Compressor, drag all six files in and select a Dolby ac3 preset. Patch the individual files to the correct channels and encode.
Basically it is the same procedure as encoding pictures with the patching. I am sure it is well explained in the manual.
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The “how” is easy, it’s in the manual and the help file (just do a quick search for “Dolby”). I’d like to know how to get this to actually WORK.
I have tried to make these numerous times; invariably they encode as 5.1 surround but have the six discreet audio channels flattened to Left and Right. Nothing to any other channels. That’s having sent files to authoring stations (Scenarist, Panasonic, DVDSP, you name it) checked burns on several DVD and BluRay players, importing the ac3 into SoundtrackPro, sending it to ProTools operators who note the same issue, etc.
There are several threads here covering the “how” – but can anyone help get them to work?
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[Mike Krause] “invariably they encode as 5.1 surround but have the six discreet audio channels flattened to Left and Right.”
An ac3 file is a stereo data file that contains the six channels compressed and multiplexed. It will appear to be a stereo file but decoded through a Dolby Digital decoder will separate into the 5.1 channels.
What feedback are you getting from the various people? Is the ac3 only decoding as stereo? Are you using a 5.1 preset in Compressor?
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Sorry for the late response, holidays and all.
Yes, I’m using a 5.1 preset. I’ve tried the “automatic” as well as assigning channels by hand.
The feedback is exactly that – “this is only playing back in stereo”.
I went to my audio specialists (using ProTools) and they confirmed this, both by decoding the file in software to separate the channels as well as playing back the files through Dolby equipment to check the 5.1 separation of channels.
Interestingly enough, when they encode 5.1 ac3’s and I use Soundtrack Pro to open them, the files show six discreet channels. When I create them in Compressor or Soundtrack Pro, they always open as six channels but with audio only in the L and R channels.
Am I just missing a secret check box in the export settings or something?
Thanks for any more info you guys might have.
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