Dolby Digital Settings

With my system, if Dolby Digital is set to "On" in settings, I don't get any sound at all from Rented or Purchased movies from iTunes - however, I do get sound from Netflix, Youtube, iTunes music, etc.
Sound works in iTunes material if Dolby Digital is set to "Off" or "Auto."
I'm worried, however, that if a Movie is Streaming with Dolby Digital, the sound should be working when the Audio Setting is "On." Am I just getting stereo audio if the Dolby Digital setting is "Auto?"
Currently I am only running the HDMI Cable to the TV - no Optical Audio out or anything.
John

I think it's probably similar to my issue here:
https://discussions.apple.com/message/17926593#17926593
Rentals generally have either 1 or 2 audio tracks.
The first is stereo (occasionally mono), the second is the dolby digital surround.
I connect to the TV via HDMI and to the surround processor via optical.
In the past I'm sure I've managed to have sound from the TV (HDMI) or surround processor (optical Dolby Digital simultaneously).
I think what currently happens is this:
AppleTV 'talks' to the HDMI device and ascertains what it can support. Most TVs will not be able to decode Dolby Digital over HDMI. Receivers/amps with DD capability will.
So when the TV is connected via HDMI, and DD is set to off or Auto the TV gets the stereo feed (Auto selecting stereo as TV can't handle DD).
If however DD is set to On this forces DD through HDMI but the TV doesn't know what to do with it.
So in my situation I can either have it set for stereo audio over HDMI (Off or Auto) and optical, or DD over both (DD set to On.
Clearly I want the stereo track to go to the TV over HDMI and DD over optical (falling back to stereo if no DD track) so I don't have to fiddle in Settings each time I choose to listen through TV vs surround system.
AC

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Media Encoder PCM or Dolby Digital Settings change preset????

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When I use the H.264 Blu-Ray with my Pre set to 1440 x 1080i 29.97 High Quality, and I Press the Dolby Digital as my audio instead of PCM, my Preset changes to Custom. (1440 x 1080i goes away)
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I had read that Dolby takes up less space without losing that much quality.
I'm trying to encode this file to about 15GB with keeping the best quality Audio and Video I can.
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SAFEHARBOR11 wrote:
Jim,
In case you missed it, his program is 2hours 40 minutes, so in that case, space is at a premium and I would go for the Dolby.
It is normal for Media Encoder to create PCM audio, that is OK, Encore will TRANSCODE it to Dolby later and shrink it down.
Edwurd, please see you other posting for more info about encoding size
Thanks
Jeff
Jeff is right.
Let Media Encoder make the .264 and .wav files and have Encore automatically transcode the pcm to ac-3 (since it's licensed to do so and AME is not). Don't multiplex them into a mp4 or mov container; it'll make it blu-ray illegal (even though Encore will allow you to import it).

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The Audio Midi Setup utility may need to have its settings updated.
That's if you have the right adapter:
https://discussions.apple.com/docs/DOC-2821

Dolby Digital encoding immediately forgets my bitrate settings.

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Thanks for the quick response, but sad to say it was all my own fault.
My dolby digital receiver is a recent purchase, and it's the only receiver I've ever seen where straight DD decoding is in DSP options.
Suffice it to say, I wasn't getting 5. sound because I didn't know how to use my own receiver
Everything sounds great here now.
Still not sure why my config screens look so much different, though.

Dolby Digital Auto Setting Doesn't Work w/4.4.2?

I have a bunch of old movies that were recorded in stereo, pre-Dolby, and of course, a bunch of newer in Dolby Digital. After upgrading to Apple TV iOS 4.4.2 yesterday, I now find that the Settings/Audio & Video/Dolby Digital/Auto setting no longer works.
I just started a new iTunes downloaded movie with Dolby Digital 5.1 sound and noticed that it was playing in PCM stereo-only mode for some reason. I then tried a couple of other older iTunes downloaded movies with 5.1 sound, and they all were playing in the same old PCM stereo mode, as well. To get the new movie to play in 5.1 sound, I had to manually change the above Dolby Digital setting to ON.
A similar issue applies to older movies in pre-Dolby stereo. If the above setting is set to Dolby Digital ON, those older movies switch from normal stereo to Dolby Digital 1.0/Center channel only sound, so I have to either switch the Dolby Digital setting to OFF or back to Auto, which defaults to PCM stereo for everything now.
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I'm using an Apple TV 2 with an optical connection to my audio amplifier. The movie is streaming over my wired gigabit Ethernet home network from my iMac.

Seems to be an issue for some of us since 4.4; see other thread.
https://discussions.apple.com/message/16447970#16447970

ITunes rented movie not outputting Dolby Digital 5.1 audio

The problem with the downloaded movie (Real Steel HD) is
that the Dolby Digital 5.1 (English) audio is not being putput. The movie is only playing back in
"stereo" mode. When playing back on iTunes there are four audio tracks
to choose from:
1. English 1 (This plays stereo)
2. English 2 (NO SOUND) - I believe this should be the Dolby Digital track
3. French (This plays stereo)
4. Spanish (This plays stereo)
Neither of the two English tracks is outputting Dolby Digital 5.1 audio.
I have confirmed that my PC is capable of up to 7.1 surround sound and
my A/V receiver is capable of even more. I have updated both the ATI
Radeon 4500 driver and the Realtek drivers. I have tested and
confirmed that my PC is capable of outputting sound to all 5 of my
speakers and my subwoofer, HOWEVER when playing back the rented movie
in iTunes the maximum audio is stereo. I have the latest version of
iTunes installed, so that shouldn't be the problem.
I have also purchased another movie advertised as Dolby Digital 5.1
audio (The Bourne Supremecy HD) but I am afraid to begin my 24-hour
viewing period because of these audio problems being unresolved.
My question is: Are there known issues of movies purchased on iTunes
and played back on a Windows 7 PC not playing the Dolby Digital
tracks? If so, is there a fix for this via an iTunes settings change
or a Windows update patch?
From the four audio tracks that I listed above, I believe track 2 is
the Dolby Digital track, yet there is NO SOUND when that track is
selected.
Please help, as this is pretty frustrating when your movie night is ruined for the family especially after you've paid for and waited for the movie to download.

I managed to get my DD tracks working.
First had to update itunes to the latest version (10.7.0.21) to get rid of the out of sync sound problem
Then updated the realtek driver. There was an update directly in the realtek website (mine is the HD Audio): http://www.realtek.com.tw/downloads/downloadsView.aspx?Langid=1&PNid=14&PFid=24& Level=4&Conn=3&DownTypeID=3&GetDown=false
After all that. I tunes wasn't allowing anymore to select the Doubly Digital 5.1 tracks (an improvement).
Then went to the windows properties for the realtek optical output and checked both options to allow application exclusive access and to have priority (http://dailykermit.wordpress.com/2009/09/11/windows-7-exclusive-device-control/)
After all this, I was able to enjoy my rental

Dolby Digital over HDMI failure

I am connected to my Onkyo AV receiver through HDMI and when I first turn my receiver on it displays Dolby Digital but as soon as I start netflix DD goes away. I have tried setting DD "on" and "auto" in apple tv settings. Anyone having any luck with DD?

Ok... I found out that the dolby digital over HDMI issue is no fault of AppleTV. Most content from Netflix is not broadcast in Dolby. A good movie that is in DD is "The Warriors Way". You'll even see the Dolby icon at the main movie menu.

Does the digital optical input recognise Dolby Digital?

Hey guys,
I was wondering if you could help clarify something for me. I have an Astro Gaming A30 Audio System that I use when playing my PS3. It's a gaming headset with pinpoint-accurate 7.1 Dolby and Dolby Headphone surround sound. Here's a link to the web page if you want to know more about it - http://www.astrogaming.com/products/detail/80/A30-Audio-System/.
Now, at the moment I have the PS3 connected directly to the A30 Audio System with a digital optical cable. In the PS3 settings, I have it set to output Dolby Digital 5.1 as this is the format that the A30 Audio System uses. This setting is important because it's what gives me the surround sound in my headphones. Ok, we're almost at my question...
Recently, I've been thinking of buying a capture card so I can record my game plays and upload them to YouTube. The capture card that I'm thinking of getting is the Blackmagic Design Intensity Pro. Here's a link to the web page - http://www.blackmagic-design.com/products/intensity/.
My question is - since there is no output on the A30 Audio System, and therefore no way to route the sound into my Mac from it, I need to first send the sound from the PS3 into the Mac (for recording) and then re-send the sound from the Mac into the Astro A30s (for listening). If I do this, will I lose the Dolby Digital format that was originally output from the PS3? I don't mind recording the audio in stereo, but it's essential that the Dolby Digital sound goes to the Astro A30s. Otherwise I won't have proper surround sound. And if you went to the website, you would have noticed that they're pretty expensive. So playing in surround sound is very important to me, as I paid top dollar for them.
Anyway, if you can clarify that for me it would be much appreciated. Thanks for your time.
Regards,
Daniel

Sure there's a difference it depends completely on the original sample rate of the audio recorded otherwise the best built in audio can do is 48/24, so trying to go out at 96 will force resampling[without a capable app running]. But in terms of resampling, if you use the card then you should be able to use 96/32.
Have you properly adjusted AMS settings; so that the card is in Properties at 96? Still the only governing factor there is whatever software governs the PCI card. I don't get the problem you're having here, what is the connection to the machine, optical?

Dolby Digital In

OK; this may not even be a problem specific to the Vista drivers - but this is the problem I am having in Vista RC:
I have my Audigy2 ZS drivers installed and working, as well as I can tell. If I have the SPDIF settings in the Audio Console set to do the Dolby Digital 5. decode, then Media Center understands and uses all 5 channels. Aside from some occassional stuttering - it sounds great.
BUT - I also have my XBox 360 running its optical out into the optical input of the Audigy breakout box. With the above setting, there doesn't seem to be any sound coming from the center channel. However, if I switcht he above setting to SPDIF passthrough, it sounds perfect. But then I get no sound in Windows or Media Center.
Does anyone know a setting that might get everything working properly together? And if not, does anyone know of any command line settings that I could drop into a batch file to automatically switch back and forth between the SPDIF passthrough and the DD5. decode settings?

Did you look at this thread?
http://discussions.apple.com/thread.jspa?threadID=1383644&tstart=0

Dolby digital or pcm

I recently exported a stereo project with unusual results. The preset chosen in AME for the audio (MPEG2-DVD) was PCM. It plays fine on computers and through the volume on televisions. It sounds distorted and super strange on my surround sound. I had to turn the volume off on our surround sound and play it back through the TV. Should I chose Dolby Digital when exporting to DVD?
Thanks,
Lisa

Hi Lisa,
If you are using CS6, then in AME when exporting MPEG-2 DVD, the AUDIO tab will have an option for Dolby AC-3 and you can use that, otherwise PCM (.wav) is fine, since Encore will automatically transcode it to Dolby anyway.
As Jim mentioned, if audio sounds messed up, check the settings on the receiver. Mine has a variety of surround modes and some don't provide the desired results at all.I don't think Adobe has anything to do with your issue
Thanks
Jeff Pulera
Safe Harbor Computers

Questions to a moderator: How to enable true Dolby Digital So

Hallo,I wish to ask you directly, because I find no answers in all forums. That?s clear how to enable CMMS, but is it necessary to activate CMMS for using Dolby Digital Sound with 5. speakers? Because my Soundblaster Audigy 2 ZS has no Dolby Digital Sound. When I am testing the speakers with the Soundbalster Testing all fi've and Subspeaker are ok. But when I hear a DVD with definitly Dolby Digital Decoding only the two Frontspeakers are working. Previously when I activate CMMS all speakers gets sound, but not Dolby Digital? This is simulated 3D Sound, isn?t it ?
Help me, please.miutti

Miutti,
Make sure that your DVD software has it's sound options set to SPDIF output, otherwise it may try to decode the Dolby Digital sound itself (which could result in 2. output if it is improperly setup). Also make sure that your Audigy 2 ZS has its decoder set to "use installed decoder" on the decoder tab from device settings. Device settings is found in Audio HQ (start/programs/creative/SB Audigy 2 ZS/Audio HQ). CMSS does not have an effect on Dolby Digital decoding.
Jeremy

Cannot select iTunes Audio Track 2 / Dolby Digital

Hello,
I have a sound card (from Maplin, CMI-8738) with digital optical output configured to use SPDIF output and connected to a Denon Surround Receiver. The sound card is outputting dolby digital fine, when I play a test Dolby Digital encoded file on VLC media player (although this doesn't play on iTunes, it proves that my system can play dolby digital).
However, when I downloaded the movie trailer "Scrat's Continental Crack Up, Pt. 2" from iTunes, there were 2 audio tracks displayed from the "Get Info" right-click menu (stereo + Dolby Digital 5.1) but only one is selectable whilst the movie is playing - English (Audio Track 1). English (Audio Track 2), which is the 5.1 track is grey and cannot be selected.
I'm pretty sure the second track is the 5.1 track, as I've also downloaded rental movies which have a "surround audio" track which is also not selectable.
iTunes must have a reason to not allow access to the second audio tracks. I've also tried in Quicktime and it does exactly the same.
I have the latest iTunes 10.6.1.7 / Windows XP.
Any ideas?
Martin Dye.

See if this can help you (last part where I mention about the settings for allowing exclusive use for applications.
https://discussions.apple.com/thread/3803912?start=0&tstart=0

Premiere Pro CC, Dolby Digital License missing for MTS / AVCHD audio import?

Hi,
I'm running Premiere Pro CC on Mac 10.8.4 importing MTS files captured on a new Panasonic V720 Camcorder that records MTS / AVCHD files.
When I add the files to my project or drop them onto the timeline, the video appears fine but there's no audio and I get the warning message:
"This installation does not have a license to decode Dolby Digital audio".
I've tried switching from 5.1 to 2-channel audio on the camera in case that was the issue, no change.
The file plays fine on the mac with VLC player or MPlayer - mplayer is decoding audio with the FFmpeg AC-3 codec. I've imported MTS files created with other cameras (but presumably with different audio codecs) into Premiere fine with my current setup.
Any suggestions for getting this video and audio to work correctly?
Thanks!

Hey guys, thanks for the responses. I have checked my audio preference settings and don't really see anything in there that looks helpful...the following are my settings:
The LG TV is actually hooked up through a 7.1 receiver...I'm not sure why it registers the home theater unit as the tv....but 5.1 does play through my PC just fine with every other program.
I've been playng around with the various export settings and have found that I can successfully export 5.1 audio using the H.264 preset and switching the channels in the audio tab to 5.1. You cannot, however, do the same with the H.264 Blu-ray preset as it requires the above mentioned SurCode for compression. I'm guessing that means the non-Blu-ray preset is then uncompressed?
The projects that I'm setting up are very basic. I'm just using a single mp3 import and snapping it to one of the rear speakers. While editing, the sound does fade from the front channels but nothing comes out of the rear channels.
I guess I'm just having a hard time understanding why PPCC can export 5.1 but not play it back while editing....
Thanks again for the responses

Question about Dolby Digital 5.1 in Soundtrack Pro 3

Hi folks,
I am pretty confused in regards to using Soundtrack Pro 3 to create and export a AC-3 dolby digital 5.1 file to be used in burning a Blu Ray DVD using Toast Titanium 11. I admit that overall I am somewhat Final Cut Studio savy but for the life of me I cannot find reliable and understandable tutorials re: the dolby digital thing. I am hoping that there are people out there who will be patient with my admitted ignorance
So, what I am working on?
107 minute feature documentary film edited using FCP 7 with 65 tracks of audio mixed down (using STP3) to six (1 & 2 dedicated to Voice, 3 & 4 dedicated to sfx and ambient sounds, 5 & 6 dedicated to music.)
What do I want to do?
My film is going be to be screened at a festival next month and so I want to burn a blu ray disc (using Toast Titanium 11) with AC-3 Dolby digital 5.1 audio as apposed to 2 channel stereo.
What I don't understand?
I'm not entirely sure how the Dolby 5.1 export using STP3 works. My questions are:
Will it take a 2 channel stereo final mix and convert and export it so that it will be a Dolby Digital? If so, what about the 6 channels of audio that I mentioned before. Is it better to mix those 6 down to 2 before doing the Dolby 5.1 export?
If so, what if the theatre equipment (or any home dvd player) is not able to play Dolby 5.1? Will it then play the Blu Ray in 2 channel stereo or will there be issues?
Is there a 'standard' Dolby Digital setup when having to choose the 'Audio Coding Mode?'
And/or:
What settings would you suggest for very high quality Blu Ray export?
Anyways, I know there is a helluva lot of questions there but I obviously wanna get this right. Huge thanks in advance to any advice/suggestions you can give.
Cheers!

HI,
briefly from what comes to mind is;
your tracks need to be assigned via the Surround Sound Panner options, either or both in the tracks and submixes. Read about Surround Sound in Soundtrack Pro and also the effect options via the sound design reverberation. (The latter can create surround from a stereo submix as well )
The next chapter is the export option. FILE>EXPORT
The master can be optionally exported in Dolby surround AC-3 with a number of options you need to set in this window.
Then burning is the next chapter. I trust Toast can manage but have not tried yet.
When burning to Blue Ray one actually should use full resolution PCM files WAV format for highest quality
Audio Surround Sound. The Export then would need to be uncompressed from your final STP mix in single mono files (which is an option in STP ) and then imported into a special burning program.....
THese are my 2 cents in general.
WOLFGANG

Dolby Digital Plus Application Equalizer not working

Having Lenovo G50 Series notebook with dolby digital plus audio software. Application fails to perform if we select manual settings for graphic equalizer when in custom mode 1 or 2. if we scrolls one or other strip upwards,as soon as i release mouse hold, it drops down.. y is it so., Pic attached

It is literally THE worst interface I've ever come across. Basically, you have to have audio playing before the bars 'come alive'. Then it'll register your input. You can pause the audio and the bars will stay alive for a few seconds so you can change the setting without them bouncing around like crazy.However, even then, changing a bar with no music playing still jumps it up and down for no good reason. Such an aweful UI.It's like some kid stumbled onto an algoritim to react to user input for the first time and thought, "Oh dat looks sick yo, lemme turn it up to 10". If you're lucky and can revert to Dolby Home Theater V4 (the older version), then that interface has proper controls.

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