Delayed Dolby Digital on X

I have a Sound Blaster X-Fi Platinum sound card and when I use the optical spdif in from my hd dvr for surround sound tv shows, using my x-fi as the dolby decoder, it seems there is a slight delay between the syncing of the audio/video. Is this normal, or is there some sort of settings I can tweak to reduce/eliminate this?

This used to be a problem with the Audigy series; I don't think we can do anything about it.
I noticed it just the other day with the coax input. On one occasion it was particularly bad; however it improved a little after restarting the PC, but it's definitely still noticeable. I don't understand why it happens; it works fine when playing a DVD on the PC. My Logitech speakers can decode the DD/DTS without a delay so I don't see why the X-Fi shouldn't be able to.

Similar Messages

Dolby Digital 5.1 Sound Delay

Hello to all you knowledgable people in the sound department!
I just hooked up my Koss home entertainment center, which suports Dolby Pro Logic 2, Dolby Digital, and other things, but these seem the most important. System Specs in sig. I have the latest Nvidia Audio Drivers.
My problem is whether I am playing music, or a game, or make any sound at all with the computer, it is delayed about a second. I have my speakers hooked up through the optical port on the S bracket. This problem is very annoying playing games, as I shoot a shotgun, and I see the flash, and a second later I hear the boom! I plugged headphones into the standard analog speaker jack on the motherboard.. if I am in a game, and shoot something, I hear it right away in the headphones, and then a second later my set of speakers play it. And of course that goes for any kind of sound, such as music. Interestingly enough, I have found that if I choose "5.1 Speakers" in the Nvidia audio setup thing it is no longer delayed, but it doesnt sound as good. Once I switch it back to "5.1 Speakers (Dolby Digital)" then it is delayed, but sounds better. On my receiver it shows the Dolby Digital icon thing, meaning that's what it isusing rather than Pro Logic 2.
I have searched these forums, the internet, and OCForums with no luck, and this si really driving me crazy!
ANY help is very much appreciated, thanks!
-Dan

Hi,
Acrobatikdan: Right, played on Doom3 for about an hour (my VGA card's not really up to it, so it's a bit jerky). There was only a very slight difference between what I heard out of my speakers (DD 5.1) and what I was seeing on screen, and wouldn't have been noticeable had I not been looking specifically for it!
So I reckon you do have problems if there's a second delay! As to what that problem is, I have no idea - unhappily!
Sorry I couldn't have been more helpful
Btw, If you do manage to fix it please tell us how, as it may help others in the future!
Here's an interesting page I just found:
http://www.lvcoyote.com/soundstorm.htm
Note this quote from the webpage in the link above above, (although he is talking about another motherboard):
Quote
Dolby Digital audio should be pre-prepared to be reproduced along with the video. With weak CPU resources, you will have the sound lagging behind the picture.
Mind you, I'm only using an XP2400+ and I have no problem!
Frenchy over to you mate - any new ideas?!
Axel

Need Dolby Digital Plus audio driver for C560

My volume kept going up and down regardless of the program, so I uninstalled and reinstalled the Reaktek audio driver. Now I keep getting "Unable to start the Dolby Digital Plus audio driver. Please restart the computer or reinstall the driver if the problem persists." It's no longer in the device manager, so I can't update it through that. (The volume problem was fixed, however.) I've looked for the driver here, but only find them for other machines or tablets. I'd appreciate any help. Thanks.

I'm hesitant to refresh my system and lose all that data. I'd rather live without Dolby.
It seems to me the easiest solution would have been for Lenovo to simply give me access to the driver. As it stands now, I've uninstalled Dolby because it seemed my computer startup was delayed while Windows looked for the driver.

DTS or Dolby Digital codec plugin?

Has anyone seen or heard of a Dobly Digital (AC3) or DTS codec AU plugin? I would find that MOST useful. I haven't been able to find anything of the sort.
JB

Never heard of one. Encoding is only done by Dolby (either using A.Pack or now Compressor, or Dolby's high-end software in non-realtime, or DTS software. You can find them at respecitve web sites. Since Dolby 5.1 comes with Compressor, it's definitely the cheapest solution. DTS software is fairly pricey.
I asked sales at Dolby and they said ther is no "real-time" encoding/decoding solution for monitoring as the encode/decode process adds significant delay to the signal path, which doesn't make for easy mixing/monitoring. They also said there are no plans to allow compressor to output Dolby Digital EX (6.1; surround back) at all.
So looks like we are stuck with downmixing to surround files, then processing through Compressor, then monitoring in DVD Player using a HomeTheater receiver (be sure to switch the digital outs to S/PDIF out in Audio/Midi setup dialog).

Audio lag (dolby digital) and reciev

I'm noticing a very brief lag in the audio for my Audigy 2 Platinum Pro, and I'm just wondering, is this to be expected in all recievers? When I say recievers, I mean devices like the Platinum Pro and external recievers used in home theater systems. Do all Dolby Digital decoders have some sort of delay in any circumstance?

Well, in particular the problem that I have is related to playing the XBox with the optical audio support. But since the audio is streamed and there is no way really of 'preloading' a sound, it takes a second, for example, for the audio to kick in when I shoot a gun. My question is, is this to be expected on ALL home theater systems?

Dolby Digital Live upgrade availability for SB Audigy us

Hello everyone,
We understand SB Audigy users are eagerly anticipating the Dolby Digital Li've upgrade availability. We are still working on the development. Unfortunately, the work requires more time than anticipated earlier due to the difference in the Audigy product architecture vs the X-Fi product architecture as well as testing required to ensure stable and correct functionality. We estimate Dolby Digital upgrade for Audigy to be available in late Dec 2008. We apologize for the delay and are trying our best to release earlier if possible.
Thank you,
The Sound Blaster Team

Dear Sound Blaster Audigy users,
Dolby Digital Li've For Audigy users!
We are pleased to announce that the http://buy.soundblaster.com at US$4.72.
Please check out the website for more information on how to make the upgrade for your card.
Thank you,
The Sound Blaster Team.
Message Edited by KokChoy-CL on <span class='local-date'> 03-26-2009<span class='local-time'> 05:09 [email protected]

No SPDIF passthrough when Dolby Digital Live is enabled?

Hello,
I have SB Audigy 2 ZS and Logitech Z-5500 speakers connected digitally and I am using Win XP SP3.
I bought Dolby Digital Li've Pack and I have a problem with not getting SPDIF Passthrough for DTS audio.
Before I enabled DDL, when I played back content with DTS-encoded audio, audio was passed through SPDIF to the decoder in Logitech speakers and the DTS logo would appear on the display of Z-5500 console. And decoding chain from AC3Filter would look like this:
Decoding chain:
(DTS - 48000) -> Spdifer -> (SPDIF 3/2. (5.) 48000) -> Dejitter -> (SPDIF 3/2. (5.) 48000)
And there is also information: "SPDIF status: SPDIF passthrough"
This is straightforward - DTS audio stream goes to SPDIF output.
Of course this would only work if I chose SPDIF Passthrough option in Decoder tab of Audio console.
But after I enabled Dolby Digital Li've and played back DTS stream, the DTS logo would no longer appear on the console, which meant that the SPDIF passthrough was not working, despite the fact that it was still enabled in the drivers. For contrast, the Decoding chain for DTS after I turned on DDL looks like this:
(DTS - 48000) -> Decoder -> (Linear PCM 3/2. (5.) 48000) -> Processor -> (PCM24 3/2. (5.) 48000) -> Dejitter -> (PCM24 3/2. (5.) 48000)
And there is info: "SPDIF status: Disabled (SPDIF output is not supported)" and info of what is happening under the "processor" stage
Processor:
(Linear PCM 3/2. (5.) 48000) -> Input levels -> (Linear PCM 3/2. (5.) 48000) -> Equalizer -> (Linear PCM 3/2. (5.) 48000) -> SRC -> (Linear PCM 3/2. (5.) 48000) -> Mixer -> (Linear PCM 3/2. (5.) 48000) -> Bass redirection -> (Linear PCM 3/2. (5.) 48000) -> Dither -> (Linear PCM 3/2. (5.) 48000) -> AGC -> (Linear PCM 3/2. (5.) 48000) -> Delay -> (Linear PCM 3/2. (5.) 48000) -> Spectrum -> (Linear PCM 3/2. (5.) 48000) -> Output levels -> (Linear PCM 3/2. (5.) 48000) -> Linear->PCM converter -> (PCM24 3/2. (5.) 48000)
Much, much more steps along the way, which probably means inferior quality and also is in disregard of the SPDIF Passthrough that I had enabled.
Same thing happens when you play "nati've" Dolby Digital stream - instead of being passed through SPDIF to external decoder it is somehow "hijacked" by Dolby Digital Li've and needlessly tampered with.
My question is - how can this be disabled. I understand benefits of Dolby Digital Li've (that's why I bought it) but they stop being benefits when they interfere with legitimate DTS audio which should not be "down-decoded" into Dolby Digita - it should be passed through to the Decoder.
Not to mention that DTS Connect is not supported in Windows XP. "Real" digital DD and DTS streams should? be passed through untoched, and ony converted audio (mp3s, games, etc) should be decoded into DD. Otherwise there's degradation of quality.
The only "benefit" I noticed is that DDL is enabled, the sound is noticably louder, but for increasing loudness I have my volume knob on Z-5500 so I dont need it.
Does that mean that every time I want to listen something nati'vely encoded in DTS od DD I should disable Dolby Digital Li've? I hope there is some other solution to this.

Creative just admitted it is a bug - this is information from the "what was fixed" in the latest version of Creative Console Launcher:
"Unable to select the external decoder option automatically while Dolby Digital Li've or DTS Connect is enabled in the encoder settings."
Will this ever be fixed for Audigy software?
Message Edited by Simplex on 06-02-2009 07:02 PM

I would like to connect my Apple TV to my receiver using an HDMI cable and pass thru dolby digital. I do not have optical inputs on my receiver.

I want to connect my Apple TV to my receiver using an HDMI cable. This should allow me to pass thru high definition video and simultaneously decode Dolby Digital material with an HDMI connection from my receiver to my TV without the use of an optical cable (my receiver does not have an optical input). I am unable to decode 5.1 material and don't understand why this is not working. In the audio setting I have Dolby Digital output turned on.

Welcome to the Apple Community.
Are you sure the content you are playing has Dolby Digital.

Dolby DIGItal HOME THEATER cannot be installed after upgrading to Windows 8.1

Hi there,
today i was forced by microsoft to upgrade from windows 8 to windows 8.1 I have problem with installing Dolby Digitial Theater Home app. I unistalled previous conexant drivers (windows 8) and installed new conexant (for windows8.1). I removed dolby. Then i went to C/Drivers/WIN/Audio/DolbyGUI/ there is setup.exe, dolbydigitalplusAA.msi and dolbydigitalplusHT.msi. THe setup.exe doesnt start installation, plusHT(home theater) gives message saying - cannot installed due to an error. However I can install dolby digital advanced audio, but I want my Home Theater back!!!! Can you please help me resolve this matter.... thank you
I have lenovo edge E531 with 8gb ram, intel core i5-3230M 2.6GHz, GeForce 740M

hi sotim01,
Thanks for posting!
1. Uninstall all components,
Open Device Manager and Uninstall your Conexant audio under Sound and ganing controllers (make sure to place a check under delete driver software for this device)
2. Open Control Panel Uninstall a program and highlight the dolby component and an Uninstall button will appear.
3. Open your C: drive and Delete any folder that says drivers if non then continue with the next step
4. Download this Driver for installation
Conexant Audio Driver
Install it and continue
5. Open Drive C: now and you should have the Drivers folder back.
Open that, Open Connexant Open Dolby Gui, then you should have Dolbyaa for Advanced audio.
Restart your PC and there you go!
Let me know your findings
Cheers!
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ATV3 - I need to enable dolby digital for optical surround sound (netflix and home movies), but when I do this it stops audio coming through TV speakers

I have a cinema sound receiver connected to Apple TV via optical cable. When I have dolby digital set to Auto it doesn't come through as dolby digital when watching movies on netflix and iTunes (home movies).
If I set Dolby Digital to ON it works as expected, but the sound stops working through normal TV speakers (via HDMI). This is the same for netflix and home movies.
I tried 16 bit setting, but it made no difference.
Any advice on how I can get this working - meaning Dolby Digital always on for when I turn my surround sound on and sound through speakers for normal operation?
Obviously I can change the setting when needed, its just a pain.
Thanks in advance.

Hello everyone,
here is the friendly and signed driver installation method to enable Dolby Digital Plus in your Encore internal speakers only. This is not an official driver, there is no control panel for Dolby Digital Plus or various sound effects, but tested and has much better and richer surround sound quality as before with factory driver. I guess, this driver tweak can work with any Bay Trail tablet also.
How can you upgrade Encore sound drivers:
1. Download signed driver package and extract.
2. Open Device Manager.
3. Upgrade your Sound, Video and game controllers
- Intel SST Audio Device
- Realtek I2S Audio Codec
one by one with "Have a disk" method.
4. Double click enabledolby.reg file and add to your registry.
5. Restart, and enjoy better sound quality.
Thanks.
UPDATE: Official Toshiba Dolby Digital leaked, official driver attached: ToshibaDolby.zip
- Encore with WimBoot -
Attachments:
EncoreDolby.zip ‏310 KB
ToshibaDolby.zip ‏1310 KB

G510 Dolby Digital Plus Advanced Audio doesnt work driver problem with Windows 8.1

Hi,
my Lenovo G510 has Windows 8.1 64-bit.
In the system menue of Hardware and Sound I can see two entries:
1) Dolby Digital Plus Advanced Audio
2) Dolby Digital Plus Advanced Audio (32-bit)
Clicking on the first entry a control panel appears. Does this mean that Dolby Digital Plus Advanced Audio is always running in the backround? There is no entry in the systray.
Clicking on the second entry this error message appears:
Your current installed version is 7.3.2.2 of the Dolby Digital Plus audio driver. The software needs the driver version 7.5.1.1. Installe a correct combination of driver and software.
What to do with this? I searched for a solution and drivers but couldn´t find anything.
Thanks for your help.
Solved!
Go to Solution.

Hi Zoori,
Welcome to Lenovo Community Forums!
I’m sorry to hear that “Dolby Digital plus Advanced Audio” is not working as expected in your G510 Laptop and displaying an error message to install the upgraded version of the Dolby driver in the computer, below are the troubleshooting steps to check and resolve this issue.
Open Device Manager. (Right-click on the Start button and choose Device Manager).
Expand the Sound, Video and Games Controllers section.Right Click on the Conexant Smart Audio HD item and choose Uninstall.
Still in Device Manager, click on Action>Scan for new Hardware.
The Conexant Smart Audio item will re-appear.Right-Click on it and choose update driver.Navigate to d:\drivers\audio.When that's done, close Device Manager.Open File Manager and navigate to D:\drivers\Audio\DolbyGUI and install Dolby Digital plus Advanced Audio.
That should get rid of the error message and this version of Dolby Digital plus Advanced Audio should be working as expected.
Do post us back if the issue persists.
Best Regards
Shiva Kumar
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If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"! This will help the rest of the Community with similar issues identify the verified solution and benefit from it.
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Media Encoder PCM or Dolby Digital Settings change preset????

I am about to Encode a 2 and a half hour project from PPRO 5.5 into Media Encoder.
If I set my format to H.264 Blu-Ray and my Pre set to 1440 x 1080i 29.97 High Quality, My audio automatically sets to PCM Audio? Why?
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)
Why is this? Is that what is supposed to happen?
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.
PPro CS 5.5
Media Encoder 5

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).

I have a Symphonic 32' HDTV (Dolby Digital Plus). can someone help me figure out how to configure it optimally with my Mac Mini? the display and sound is off. Do I need drivers/software? I'm new to macs.

I have a Symphonic 32' HDTV (Dolby Digital Plus). can someone help me figure out how to configure it optimally with my Mac Mini? the display and sound is off. Do I need drivers/software? I'm new to macs.

Hello, since nobdy else has replied...
Long shot, but...
Open Audio Midi Setup in Applications>Utilities, see the input & output options & KHz setting there.

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.
Is anyone else experiencing this change? The Auto function worked perfectly for me before this upgrade.
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

HD TV Show... can't get Dolby Digital 5.1 to Work

I just bought an episode of Chuck (from NBC). In the description of the show it says that it has Dolby Digital 5.1 Surround Sound. I have my macbook-pro hooked up to my surround sound system using a mini-toslink -> optical connector. When playing the episode the Stereo track plays just fine... but if I switch to Surround.... I get no sound.
Any ideas?

I bought LOST season 5 season pass.
I only found out about this 'non-feature' after trying for ages to get it to work and searching for a solution.
When I first complained I got told by support that it was probably a hardware issue and to call the support line. I did, got the same answer, and was then asked to part with more money for continued support, which I declined. I asked point blank whether DD5.1 really only plays back on Apple TV - which was denied.
After continuing to pursue it I finally got an email from 'tier 2' support admitting that 5.1 does only plays back on an Apple TV: here's the text:
+This is+ name removed +from iTunes Store Customer Support and your request+
+has been escalated to me today. I understand that you have been+
+unable to use Dolby surround sound on your computer for your iTunes+
+Store purchases.+
+Dolby 5.1 surround sound is currently only available for the Apple+
+TV. Apple recognizes that no one is better qualified to provide+
+feedback about the content provided on the iTunes Store than the+
+people who use it.+
I got back to them to say I'd like a (small!) partial refund - to cover the costs of my phone bills and disappointment. They've gone silent.
I've now reported it to Trading Standards in the UK as it is misselling. Curiously - since i complained the 'About HD' section - where it used to say +on your Apple TV or Computer+ has been changed.

Delayed Dolby Digital on X

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