Dolby Digital Audio AC3

What do I do to fix the sound for my Quicktime, I'm not able to watch some of the videos on my computer because I do not have this component. How do I fix this?

What do I do to fix the sound for my Quicktime, I'm not able to watch some of the videos on my computer because I do not have this component. How do I fix this?
Insufficient information. What file types are involved? How many channels are you trying to get? Are you attempting to decode in the playing software or do you have an external decoder attached to your system. Is the use of alternative multimedia players acceptable?

Similar Messages

  • Audio to dolby digital surround AC3

    Regards,
    I have one test sequence in FCP,,, left channel is sound, and right is speech,, then exported separately to two mono channels,,, named SOUND and SPEECH,, I can hear each channel nice after that,,
    But, when I make AC3 file with compressor, I have problem.
    Can somebody tell me where I make mistake??
    With compressor I make New Job With Surround sound group,, then select for every channel one mono channel, from FCP, specifically; L - speech, C-sound, R -speech, Ls -sound, Rs-sound ,,,
    after select File format,, Dolby digital Professional,, Target sistem is DVD video,,,, Audio coding mode is 3/2,,, In Preprocessing, compression presset is NONE,, after submit this I have AC3 file, and when I make DVD and looking in my home dolby digital system I hear completely diferent disposition,, L - Sound, C-sound, R-speech (very quiet) Ls- sound, Rs-speech,
    I was trying and different setup, but I cannot acquire adequate setup,, before I was using AC3 encoder (FCP 4.5), and everything was perfect,
    Thanks,

    Sry, your comment is 5 month old, but i have to ask you some thing too:
    What headset do you use for the surround sound? I read EVERYWERE that headsets can just output games / music in stereo... for example the logitech g35...
    Hope you can help me

  • Dolby Digital Audio Variations

    Does anybody know the difference between Dolby Digital 5.1 and Dolby Digital 5.1 EX?
    And is there an affordable DTS encoder/decoder for the Mac?

    none that I know of...
    take a look here for Dolby bits:
    http://en.wikipedia.org/wiki/Dolby_Digital

  • 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

  • MPEG Streamclip tp Produce Dolby Digial Audio

    How do I get MPEG Streamclip to produce videos with Dolby Digital audio. I adjust the audio setting to AC3, but the file does not show up as Dolby on my receiver when I play it.

    It says so right in the documentation. MPEG Streamclip can read AC3 (multichannel) but only writes two channels at a time. By default it converts audio to 2-channel stereo. It can pass through AC3 source to various file types but if you are converting to QuickTime then you need to get an AC3 codec. Open MPEG Streamclip, then do +Help > MPEG Streamclip Guide.+ Scroll down to +Audio Modes and Multichannel AC3.+
    That section explains the handling of AC3 source. Default mode downmixes the channels (less the LFE channel) to 2-channel stereo. There is one mode (Surround) that can create a 2-channel Dolby ProLogic stereo track. "... Makes a Dolby Surround-compatible stereo sound. Using this special stereo sound, a Dolby Pro Logic amplifier with 6 speakers (5+1 subwoofer) may be able to reconstruct and play all the 6 channels of AC3. Use this mode only if your audio equipment has a Pro Logic decoder and can handle Dolby Surround." Note: the operative words are "may be able."
    It would help if you provide details on what source material you are using, what you are converting it to and what you are attempting to play it back on. (Exact specs, makes/models, etc.)

  • 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  

  • Dolby Digital/AC3 encoding?

    I just bought a K8N Neo4, and hooked it up to my Panasonic audio receiver - just the one cable, S/PDIF optical. I was hoping to get 5.1 sound out of this, but all I get is two channel stereo. 
    Is there any way to encode a signal that my receiver can use to produce full surround sound (it supports Dolby Digital and DTS signals)?

    Nice.
    I never even heard of it.  I always thought the only way was to go 6ch analog and have your external amp support multi channel in if the source wasn't DD/DTS already in which case it's not DD anyway.  Otherwise you only get 2ch PCM on the SPDIF. Then again I only have owned Creative sound cards....geez even then Creative made you buy the breakout box to enable AC3 decoding unless you made a board mod...  Of course you still need a multi channel source.  What kind of software do they come with?  Can you play a 6ch .wav for example and have a DD/DTS stream over SPDIF/Optical? or is only really for games, so for simplicity you can have one cable/fiber and not go analog till it 's on the way to the speakers?  Still though except for a few less cables, and when the D/A conversion takes place(and therefore the quality of which component is doing it, sound card or amp) I don't think it's that big of a deal if you have multichannel input amp.  DD is still not lossless compression so the big advantage would seem to be for those without multichannel inputs.  Otherwise it would be an interesting comparrision for the audiophile which I'm not.  You have a pure source and you compress to DD and lose quality and then decode and output  vs. Pure source going analog, losing signal quality along the way and outputting.  someone on the internet has surely done it.

  • Dtt 3500 - Can't choose Dolby Digital DIN / PCM Audio

    Hey all,
    I've had a DTT 3500 for quite some time now and I was always very satisfied with this surround system.
    I recently bought a new 7.1 System for my computer and now use the DTT 3500 along with my videobeamer to play Playstation 2 and XBox games... the soundoutput from these devices works perfect.
    My problem is as follows:
    I would like to use my DTT 3500 from my computer too, I hooked the DTT 3500 up to my Soundblaster Audigy 2 ZS soundcard with the "digital cable" that came with the DTT 3500. I then choose 5.1 speakers and "Digital Output Only"... but I don't hear any sound coming from the DTT 3500.
    According to the manual I have to choose "Dolby Digital DIN / PCM Audio". When I try button with which one would accomplish that, I fail as I can only select Optical and Coaxial... I never get a "green light" next to "Dolby Digital DIN / PCM Audio".
    Does anybody have the same problem?
    The Audigy 2 ZS works wonderful with my 7.1 system and if I uncheck "Digital Output Only" I hear sound, all no problem... also, if I use an AC3 source (eg. XBox 360) I hear sound from the DTT 3500... I just have a problem hooking it up via digital output from my PC with Audigy 2 ZS...
    Please help, this is driving me nuts! (And I tried to get it to work all sunday long... )
    Cheers
    Onkl

    onkl0r,
    Try disconnecting and then reconnect the DIN cable again. The speaker will need to detect a DIN connection first before the DIN option is selectable on the speaker end.
    Jason

  • 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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  • 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

  • Can't TAG Mp4 files with Dolby Digital AC3 5.1

    Hi everyone, I use iTunes to TAG all my Mp3 and Mp4, I have over 100,000 Mp3 tagged with iTunes without no problem and over 2,000 DVDs concerts, TV series, etc in Mp4 format tagged also with iTunes without any problems, all my Mp4 til now have 2 channel stereo sound.
    My problem now is that I'm making some Mp4 movies with dolby digital 5.1 and this Mp4 play perfect in iTunes and QuickTime ''but'' I can't TAG them in iTunes because of the AC3 5.1, I'm sure of this because everthing made in 2 channel stereo have no problem to TAG in iTunes. If I TAG them its seems in the begining to write the TAGs but if I clear iTunes and then re-load again the files the TAGs dissapears.
    I use MAC and PC. I use Nero Recode 2 to make my Mp4. I have the last version of iTunes and QT.... I have noticed that Winamp can write the TAGs without any problems and stays there but what I need is to iTunes recognize that TAGs because I run all my libraries in iTunes
    Thanks in advance, sorry for my english.

    Anybody please, any answer can help me please... Is that no body has experience this same problem?
    If iTunes can't support TAGs with 5.1 is possible to fix this in the next update?
    Regards

  • Dolby Home Theater V4 changed to Dolby Digital Plus after Realtek Audio Driver update Windows 8.1

    Hi,I'm now using Ideapad Z510. After upgraded to Windows 8.1. I'd went to the Lenovo website searching for new driver update.
    But, after i install the "Realtek Audio Driver 6.0.1.7023", the "Dolby Home Theater V4" is not running(audio sound not playing through).And, the "Dolby Digital Plus" is running instead of "Dolby Home Theater V4".
    Then, when I try to reinstall the older version "Realtek Audio Driver 6.0.1.6954" from Lenovo website, the "Dolby Home Theater V4" is running again.
    Truly, the "Dolby Digital Plus"'s sound is crisper and louder than "Dolby Home Theater V4". But the sound of "Dolby Home Theater V4" has more bass and more function (like Graphic Equalizer, more Intelligent Equalizer etc.).
    Is this an update or what?
    What should I choose?The newer driver (for Windows 8.1) or older driver (for Dolby Home Theater V4)?  Thanks. (confused now) @@

    Hi all
    Could you try out DAA or DHTLightweight from my link and just install the Dolby software without overriding your Realtek Driver? I am not sure whether would it work, but worth a try. I have tried on Y460, W520 and G560 with great experience.
    If the older Dolby software does not work with your existing Realtek driver, you could install the DAA or DHTLightweight with their driver to overwrite and see how it goes.
    Thank You
    Peter
    ThinkPad W520 | ThinkCentre E73 SFF | IdeaPad K1 | IdeaPad Yoga 11s | Miix 2 10" | 3000 Y300 | Yoga Tablet 2 Pro
    Give kudos to reward people for their assistance | Mark thread solved if the solution works | Please do not send me an e-mail regarding technical questions | I am not an Lenovo employee
    =====================================
    Dolby ; IdeaPad Slate Tablet

  • How to encode Dolby Digital (AC3) 24 bit

    I noticed that all my dolby digital setings in Compressor are in 16 bit. Is there a way to have them set on 24 bit. In A.Pack, you could encode the audio in 24 bit.

    I could be misunderstanding something, but I've been reading Apple's whitepaper to make sure of the details.
    "48 bit" is unclear, because it could mean 12x4 or 16x3.  Both combinations are impossible with ProRes 422.

  • 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

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