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Encore CS6 and multiple AC3 tracks

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Jef Huey
Encore CS6 and multiple AC3 tracks
on Jan 10, 2013 at 9:45:09 pm

I am trying to author a Blu ray with two AC3 tracks - a 5.1 and a stereo.

The result is 2 stereo tracks. Googling this seems to confirm that this is a common problem. One solution is to make sure that the AC3 assets are tagged as "Do Not Transcode". I can not find a way to do this in Encore CS6. While that did seem to be an option for DVD, it does not for Blu ray.

Can any one point out anything I am doing incorrect? Are there any workarounds?

Thanks,
Jef


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Bill Stephan
Re: Encore CS6 and multiple AC3 tracks
on Jan 11, 2013 at 1:35:47 am

Jef,

Are you running Encore on PC or Mac? I ran into the same issue and found that Encore CS-5 and CS-6 on Mac has the option for "Do Not Transcode" in the drop-down next to the media, while Encore CS-5 on PC does not. I have not used Encore CS-6 on PC. All my 5.1 .ac3 files are DVD & Blu-ray spec-compliant.

Bill Stephan
Senior Editor/DVD Author
USA Studios
New York City


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Jef Huey
Re: Encore CS6 and multiple AC3 tracks
on Jan 11, 2013 at 2:46:05 am

I am on mac - OS10.6.8. I saw those selections in the DVD columns but not in the blu ray column.

Any other ideas?

Thanks,

Jef


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Daniel Ludwig
Re: Encore CS6 and multiple AC3 tracks
on Jan 11, 2013 at 4:14:24 pm

Jeff,
you need to look at your project-preferences. if your project was created using "PCM-Audio"-preset, then all your audio will be trascoded to PCM, as it was selected project-wide.

you can´t change that afterwards - or in other words, you need to create your project from scratch.

encore only allow PCM or dolby digital audio

cheers

danny


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Jef Huey
Re: Encore CS6 and multiple AC3 tracks
on Jan 11, 2013 at 5:35:40 pm

Thanks for the info. I had set the project up with Dolby Digital as I knew that the files were being created as AC-3.

These AC3 files were created with Compressor. They work just fine in a SD DVD project created in DVD Studio Pro with the same basic structure. So I have a fairly high confidence level that they are correct.

Any more ideas?

Jef


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Daniel Ludwig
Re: Encore CS6 and multiple AC3 tracks
on Jan 11, 2013 at 10:03:21 pm

oh - my good,
jef - I remember some other guys mentioned the same problem, that 5.1 within encore will result into stereo-sound - seem to be a (one more) bug within encore.

please let me do some more investigations on that. I could have a deeper look into the projects and the resulting BDMV.

normally I create BDs using the pro-tools (scenarist, DoStudio or others).

keep you posted....

cheers

danny


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Daniel Ludwig
Re: Encore CS6 and multiple AC3 tracks
on Jan 14, 2013 at 5:33:40 pm

short update:
I created a short test-project with encore with 2 audio-trackt:

1. dolby digital 192khz 2.0 stereo
2. dolby digital 256khz 5.1 surround

afterwards I took the multiplexed BDMV-folder and demuxed it using EasyBD, which also created a project-file straight away. within this EasyBD-project I could see, that both streams will be shown correct.

1. DD2.0
2. DD5.1

also tested with a software-player - which showed DD2.0 and 5.1 within the on-screen-info.

as I haven´t got a 5.1-surround-sound-playback at the moment - I could only analyse what I could see so far - this is looking OK.

cheers

danny


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Jef Huey
Re: Encore CS6 and multiple AC3 tracks
on Jan 14, 2013 at 5:44:35 pm

Thank you for testing.

Could you possibly make a screen grab of your asset page for me?

I am trying to compare how assets are brought into Encore as I feel this may be a part of the issue.

Cheers,
Jef


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Daniel Ludwig
Re: Encore CS6 and multiple AC3 tracks
on Jan 14, 2013 at 9:12:53 pm

Hey Jef,
here you´ll see the screen-grab:



cheers

danny


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Jef Huey
Re: Encore CS6 and multiple AC3 tracks
on Jan 14, 2013 at 10:33:15 pm

Great info. Thanks so much.

Here is my problem. I can NOT get my AC3 files to be "Don't Transcode" and your screen shot clearly shows that you have been able to do this.

So --- How did you do that!!! ;)

Jef


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Daniel Ludwig
Re: Encore CS6 and multiple AC3 tracks
on Jan 15, 2013 at 5:59:38 pm

Jeff,
if you created your AC-3-files using compressor they should be valid for BD as well, or your global project-transcoding-setting is set to PCM audio.

could you please upload a small sample of your AC-3-files (2.0 + 5.1) so we could have a look at it.

cheers

danny


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Jef Huey
Re: Encore CS6 and multiple AC3 tracks
on Jan 15, 2013 at 7:14:49 pm

Here is a screen shot of my project.



When I try to change the transcode option for the audio, I do not get "Don't Transcode" as an option. I get a whole list of video formats.

Now when I selected the .h264 asset and went to transcode options it DID have "Don't Transcode" as an option. Which I chose and seems to be working correctly.

I can not post any of the audio files as they are client property and the project is in progress.

Does this give you ANY clues?

Thanks,
Jef


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Daniel Ludwig
Re: Encore CS6 and multiple AC3 tracks
on Jan 15, 2013 at 9:12:27 pm

Jef,
could you please tell me which compressor-encoding-setting do you use? have you choose one of the presets or have you create your own?

could you please export the settings (drag-drop) it out of compressor and sent it over (zipped) to my email, so I could have a look at your compressor-ac3-setting?

here´s my email-address: info (ät) moviedesign.de

there must be something strange within your ac-settings.

cheers

danny


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Jef Huey
Re: Encore CS6 and multiple AC3 tracks
on Jan 15, 2013 at 9:32:22 pm

Will do later today. Not at that machine.

I wonder if it might be the data rate for the 5.1 AC3 track. Will have to check.

Thanks,
Jef


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Daniel Ludwig
Re: Encore CS6 and multiple AC3 tracks
on Jan 15, 2013 at 9:43:00 pm

Jef,
it´s not a matter of the bitrate, encore could import AC-files with the max. bitrate for AC3 which is 640kbit/s. there must be any other kind of problem with your bitstream.

cheers

danny


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Jef Huey
Re: Encore CS6 and multiple AC3 tracks
on Jan 16, 2013 at 4:06:00 pm

Ok, here is an interesting update. I misspoke when I said that the two AC3 tracks were created in Compressor. They were actually created with a Dolby product (not sure which one) by the DVD authoring department here. So I am pretty confident that these are totally compliant files.

Also, I tested these files on a PC system running the same version Encore and both of them seem to import properly!!

So either there is a bug on Mac Encore or I have a corrupt project (which would be the second time for this project).

More testing and research to do.

Jef


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Jef Huey
Re: Encore CS6 and multiple AC3 tracks
on Jan 17, 2013 at 5:53:05 pm

Just an update.

I started a new project on my mac system. I imported the audio tracks first and they came up as I would want - with "Don't Transcode" in both Bluray columns.

In my initial project, I brought the video asset in first. Don't know if that had anything to do with it. But it seems as if that project became corrupted somehow, because no matter what I did, I could not get the 5.1 audio file to show "Don't Transcode".

Currently waiting on the .iso to burn to a BD-RE so I can start a QC.

We will see.

Jef


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Jef Huey
Re: Encore CS6 and multiple AC3 tracks
on Jan 20, 2013 at 4:14:20 pm

Ok - final wrap up.

For what ever reason, starting a new project and bringing AC3 files in prior to video assets solved my problem and I seem to have a Bluray disc that is what I need.

I am sure that operator error played some part, but I had a total of 4 corrupt projects where I had to start over from scratch to get a viable result. By corrupt I mean things like assets once imported could not be changed. Even deleting and reimporting would not allow changes. I also had one project where the menus became corrupt and I had to start them all over again.

Encore just seems incredibly "fragile" to me. But it also seems as if there are not a lot of options in the low price range when you need a slightly more than basic Bluray output. And that statement ignores the whole issue of going to replication. I am just looking at simple presentation discs for clients.

Thanks for the help all.

Jef


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