Dolby Digital encoding immediately forgets my bitrate settings.

Dolby Digital encoding is ignoring my bitrate settings. I have a stereo AIFF I'm trying to encode at 448kbps, but the minute I leave the settings window, it reverts back to 192kbps. This is driving my crazy! Anyone else having this problem?

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.

Similar Messages

  • Dolby Digital Encoder Does Not Support Any Encoding Options

    Is it just me, or are there no encoding options for the Dolby Digital encoder other than the bitrate?
    How are you supposed to select the dialog normalization, dynamic range compression profile, etc. for your audio? Without these parameters set correctly, the audio will not be encoded correctly.

    @jbowden:
    > Adobe licenses the AC3 encoder that Encore uses from Dolby Laboratories. This is stated quite clearly in the splash screen, the box, and other materials distributed with Encore.
    I didn't say otherwise. But what they license is the code, not the implementation. Implementations are supposed to be submitted to Dolby for approval, and I'm surprised that Dolby approved the implementation given the oversights and encoding quality.
    > It's a consumer-level encoder, and if you look around this forum I think you'll find very few posts about audio quality, which would seem to indicate that Encore provides acceptable audio quality for most users. Cases with audible clipping can occur if the input signal is too high...keeping your audio signal around -6db should eliminate any clipping.
    I don't buy into this whole argument about "consumer-level" and "professional-level". What is the exact difference? Dolby's code is constant across all licensed encoders, so any differences in encoding are the result of an implementation difference, and that's Adobe's fault, not Dolby's.
    Audio signals are audio signals. Why do I have to keep my audio from peaking above -6dB with the Adobe encoder? I can take audio whose peaks go all the way up to 0dB and encode it with the Sonic Foundry encoder with no problem -- no clipping, no volume pumping, etc. Not so with Adobe Encore's implementation.
    @Neil Wilkes:
    > As far as Dialnorm goes, again I say it is pretty meaningless in a stereo file.
    Dolby's encoding guidelines documents seem to say otherwise. In my readings, it seemed pretty clear that the decoder must have the dialnorm parameter set to the LAeq level of the dialog in the audio regardless of channel configuration.
    > I suppose, although as long as the stereo mix is actually set up correctly there is no need to invoke DRC. The only time DRC would be needed on a stereo file is if the thing is too darn loud.
    I have to disagree with this. There is a LOT of material that can benefit from DRC, both soundtracks that contain a large dynamic range (explosions to whispers), and soundtracks that have small dynamic range (speech). DRC doesn't have anything to do with the overall volume level of the soundtrack, but the dynamic range of the soundtrack. If the soundtrack is too loud overall, that's not a DRC problem, that's a level problem.
    > In a properly balanced stereo file, there is no need at all for DRC or Dialnorm. There is no centre channel containing dialogue, just a phantom centre, so what are you going to reference it to, please? How can you attenuate the left/right channels with reference to the centre channel dialogue when there is no centre channel present?
    Just because the dialog isn't isolated in the center channel doesn't mean you can't use it to set the dialnorm parameter. Plus, the decoder doesn't attenuate the left/right channels with reference to the center channel, it attenuates the entire soundtrack on playback.
    Your quote from Dolby labs is very correct. Following that procedure ensures that the decoder, when it applies attenuation based on dialnorm and applies DRC will work as intended.
    > Additionally, it is not referenced to average RMS either. RMS is close to the correct way to measure, but not correct.
    That is true. However, I don't have any equipment to measure LAeq directly, so RMS of a dialog section of my audio will have to do. I do know this: When I applied to Dolby for logo usage on my DVDs, they requested samples of my DVDs for approval of my methods. My first submissions (where I didn't bother with dialnorm & DRC) were rejected, and Dolby sent me a letter telling me such. After I produced further DVDs using my method in my Doom9 post and resubmitted the DVDs to Dolby, they were approved. I can only conclude that my method, while not perfectly accurate, is good enough to qualify for Dolby's rigorous standards.
    The bottom line is that I feel I have enough evidence to conclude that the DD encoder implementation in Encore is substandard. If you or anyone else feels it meets your requirements, then use it. But I for one will not allow a single DVD to go out from my company with audio encoded with this encoder.

  • Question for P6N SLI Platinum User : Does ALC888 support Dolby Digital Encoding?

    Hello to all P6N SLI Platinum users here,
    I have one question regarding Dolby Digital Encoding support on this motherboard. By default, ALC888 does not support Dolby Digital Encoding. But I am still curious. Can you please check on your motherboard, does it support Dolby Digital encoding or DTS Live Connect output to SPDIF? (You may check it by Realtek HD Audio Manager control panel. If there exist such setting option, it means it does support.)
    The reason I ask this is I am thinking to switch from 975X Platinum to this board, I am unable to try this myself here as it requires me to reinstall my OS in order to load to WinXP
    Thanks in advance.

    have a look here:
    http://en.allexperts.com/e/d/do/dolby_digital.htm
    according to info there its support Dolby Digital Live

  • Is creative EVER going to produce a soundcard with Dolby Digital Encodi

    It would be really nice if Creative would make a soundcard that included DD Encoding and a real SPDIF output and not ont that only supports AC-3 passthru from DVDs and PCM stereo! Especially since nVidia did it on the old nForce2 MCP-T and C-Media also supports DD Encoding in thier CMI8768 chip used on this card (http://www.bluegears.com/soundcard_xmystique.html). The real killing thing is that now that Realtek now has the HD Realtek ALC880 CODEC for AC-97 sound that does DD-Encoding (http://www.realtek.com.tw/products/products-2.aspx?modelid=2004058) so that motherboards will now be able to have DD Encoding and not the $400 creative card!

    Hi Jason,
    I do not mean to be difficult but, as I stated in my original post, I have an SB0220, and that driver would not install. It reports that it cannot detect any Sound Blaster audio card on my system, even though Creative Diagnostics (the version installed from the cd) reports that everything is installed and working correctly (passed all tests), and the setup program on the original install cd works without any problems. This would seem to indicate to me that your information source is wrong.
    In any case, that is not the point of my post. The point is that this card (and other SB022x models) should be included. It does not necessarly have to be in it's own category (although it would make it much easier to find the correct software/drivers/documentation if it was), but it should be included somewhere. Even if the link brings you to a page that says that currently there are no available updates for this card, it should be included. Currently, the documentation for this card is not even available for download. I can understand there not being any driver updates as of yet, but if nothing else, the documentation should be avaialble.

  • 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

  • Sound Blaster able to encode Dolby Digital 5.1 and abo

    Hi there.
    I recently buy a new motherboard without dolby digital encoding onboard (the older, nForce2 (asus a7n8x deluxe had that capability, the new one, doesnt, it is an asus a8n-sli premium)
    I use the coaxial digital out to connect my computer to the home theatre with only one cable (that rules), also, enabling "cloning" allow me to listen using at least 4 speakers, instead of the two front ones.
    Someone told me to buying a "cheap" sound blaster will do the trick.
    My options are (from cheap to expensi've):
    CREATIVE AUDIGY SE SB0570 OEM
    CREATIVE AUDIGY SE SB0570 BOX
    CREATIVE AUDIGY2 VALUE
    CREATIVE S.BLASTER X-FI PLATINUM
    CREATIVE S.BLASTER X-FI XTREME
    For me, the best option is the SB0570 BOX. The Audigy2 VALUE have 2.5 times the price of it.
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    Thanks in advance!
    Fa

    Analog to Digital Conversion is exactly that: It translates the Analog input signal of eg. a microphone into a PCM digital signal, with 24-bit precision. That is essentially the Line-IN and the Microphone input. (Although for the microphone they tend to have lower precision but amplify the signal).
    There is a sticky at the top of this forum which you should read to understand the difference between the various digital formats.
    To make it clear: The Sound Blasters have an SPDIF output which can send digital signals. However it does not have a Dolby Digital compression engine, so it will either send uncompressed PCM signals if it has processed them before. If you have a source that is already in Dolby Digital then you can redirect it through the SPDIF output and get full surround sound. This ONLY happens on DVDs, because they come precompressed.
    Everything that gets processed on the soundcard is outputted as PCM digital: For 6-channel audio there are 3 connections which end up on 3 DACs (Digital to Analog Converter) where the digital signal is then made into analog for the speakers to be able to play it. The SPDIF connection simply bypasses the DACs (the DACs of the receiver are used) but takes only connection, that of the front speakers.
    Dolby Digital AC-3 is a compression mechanism, which compresses sound (much like mp3), so that it can fit in only one connection, where uncompressed only a stereo signal would pass. (In doing so, it also lowers quality!)
    So: If you want to use a 7. speaker system with a Sound Blaster you have to go analog, which also means 3 cables (because they have 3 wires for the channels + ground). And I don't think Dolby or DTS supports more than 5. channels for the time being, so not even with Dolby Encoding onboard could you do it with one cable.

  • What GAMES Are Encoded With Dolby Digital Surrou

    I'm trying to find some games to play which have Dolby Digital Surround encoded in their code.

    There are NO games encoded with Dolby Digital Surround. At least none that I am aware of. You need a sound card that performs Dolby Digital Encoding, and Creative Labs does not producr such a sound card, although they ave just release an external device that has 5. analog inputs and will encode that into Dolby Digital Surround format. Why they did that instead of putting on the sound card, I do not know or understand.

  • 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

  • Titanium Dolby Digital - Windows Volume Controls Not Function

    I am extremely happy with the Titanium because it finally elminated the 4GB Snap-Crackle-Pop issues I've been having since I owned this motherboard.
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    I'm still happy to see Dolby Digital encoding on this card, and very pleased that I'm using 4GB now without crackling in games or during music, but hopefully this Dolby Digital issue can be fixed.
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    Unfortunately (for me) the two of you are correct and windows volume controls have no effect in Vista.
    Auzentech has this on their FAQ:
    Q : After installing the sound card and connecting it to my surround sound system using S/PDIF output, keyboard and Control Panel adjustments to Volume and Balance either do not work or have minimal affect. Is that normal
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    http://windowsvistablog.com/blogs/windowsvista/archi've/2008/03/04/using-s-pdif-to-send-audio-from-your-pc.aspx
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  • How do you really preview all 5 channels in a Dolby Digital 5.1 sequence?

    I'm trying to build up a 5.1 sequence and I'm struggle with the lack of information. I've purchased surcode for CS6 but I'm not sure that helps with a preview.
    I hacked my realtek card to support dolby but that doesn't seem to make a difference. Only LF, C, and RF put out sound. LS and RS end up in the front speakers.
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    When I select sound card mapping that shows 8x I can map to specific speakers, but not to optical. It maps, but nothing comes out of speakers.
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    cds

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  • Digital Sound Dolby Digital .. I miss Soundstorm :( (Neo4 Platinum)

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    Quote from: master0068 on 11-February-05, 09:47:05
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