Loss of Dolby Digital signal with Tivo HD

Discussion in 'TiVo Series3 HDTV DVRs' started by mike_camden, Jan 26, 2008.

  1. Apr 20, 2008 #61 of 188
    mike_camden

    mike_camden New Member

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    Dec 11, 2006

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    Please don't take offense (that's not what I intended) and please feel free to start a thread detailing your issue; however, from your own description, your audio issue is significantly different from the one this thread is discussing. If you doubt that, please go back to my original post in the thread and read the description and compare that to what you posted.

    In your post, you state that the audio will turn off and stay off until you turn the receiver off then on or switch audio inputs on the receiver. You also state that it happens with DD and PCM and on recordings. These circumstances are significantly different from those that I started this thread to discuss.

    As the OP and since I believe that Tivo is moderating this particular thread for reports of what is happening with this specific situation, I merely informed you that I didn't think your issue was the same. I am now asking that you post your issue elsewhere so we don't get a whole bunch of dissimilar reports in this thread. Since it's a "free" forum, you can obviosuly choose to honor my request or tell me to go pack sand and ignore my request and help to make this thread irrelevant. I would think that it would also be in your own best interest to have folks reporting issues similar to your own in a separate thread so you can collect data points as to whether yours is a somewhat common problem or if it might be something else in your setup.
     
  2. Apr 20, 2008 #62 of 188
    bizzy

    bizzy New Member

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    Jan 20, 2004
    San...
    Thanks for the laugh!
     
  3. Apr 21, 2008 #63 of 188
    mike_camden

    mike_camden New Member

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    Dec 11, 2006
    Yeah; moderating was the wrong word. I should have wrote monitoring this thread.
     
  4. Apr 21, 2008 #64 of 188
    OvrrDrive

    OvrrDrive New Member

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    Dec 13, 2004
    Honestly, even at monitoring this thread it deserves a bit of a chuckle... :lol:

    They have enough issues at hand they know about that I doubt they spend much time out looking for more.

    Still, it never hurts to discuss it.
     
  5. Apr 25, 2008 #65 of 188
    outpost

    outpost New Member

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    Apr 9, 2008

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    Just piling on: TiVo HD bought April 8, brief sound dropouts, connected via toslink to Pioneer Elite VSX-43tx. No cable -- off air only. Happens both when "live" and playing a saved recording.

    Also have a DirecTivo since several years connected with toslink without a problem.

    Well, at least this thread spares me the hassle of exchanging the unit. And reassures me that I'm not too fussy. I hate it when a new item makes you so happy in some ways, and spoils it with a glitch.

    Would there be any point in calling Tivo and asking for them to re-download the software?
     
  6. Apr 25, 2008 #66 of 188
    mike_camden

    mike_camden New Member

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    Dec 11, 2006
    It started with me with 9.2, so I'm not sure redownloading the current software would help. I would definately recommend contacting Tivo. When I did, I referenced this thread (gave them the URL) with multiple people with differing system components experiencing the same problem, so their engineers could get a better sense of what is happening.
     
  7. May 5, 2008 #67 of 188
    outpost

    outpost New Member

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    Apr 9, 2008
    Does the Series 3 have the audio dropout problem as much as the Tivo HD?

    I only see a couple of posts about the series 3 units experiencing audio dropouts. I bought my TiVo HD April 8, and have a 30 day exchange opportunity about to run out. So I'm wondering if trading up to the Series 3 would diminish the problem.

    Did the HD add any new features?
     
  8. May 5, 2008 #68 of 188
    HyperSprite

    HyperSprite New Member

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    May 5, 2008
    I have a Tivo HD 9.3a and Yamaha RX-V663
    Watching the diag screen on my Yamaha, when the sound drops out, it temporarily switches to PCM and then back to DD.

    I have tried
    Tivo > hdmi sound and video > yamaha
    Tivo > optical sound, hdmi video > yamaha
    Tivo > optical sound > yamaha / Tivo > hdmi > TV (this was st find out if there was some kind of video/audio interference since it happens during changes.

    I only notice dropouts when something changes as in the following cases:
    press the quick replay, RR, FF
    Changing channels
    Watching braodcast like CNN with lots of video changes

    This does not happen with my DVD or old DirecTV tivo.
     
  9. May 15, 2008 #69 of 188
    raghu1111

    raghu1111 Member

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    Nov 16, 2005
    There in another thread http://www.tivocommunity.com/tivo-vb/showthread.php?t=382626 about audio issues but there seems to be multiple issues reported.

    This is only about audio format change caused by Tivo when you change channel: Here is what happens :

    All my channels have Dolby digital audio (exact format might vary : DD5.1 or DD2.1 etc.. but not PCM). When you change the channel my receiver reports the format to be PCM between the channels. Tivo and the receiver are connected through optical cable. The speakers make a small noise because of this format change. This does not happen with digital audio from cable receiver.

    The question is why does Tivo HD trigger this brief audio format change? One fix could be that receiver should handle it, but when it does not happen with any other devices, it makes sense that Tivo HD also plays nicely. Ideally Tivo HD should covert PCM to dolby for its menus and during the channel change.

    Anyone know if such a feature is in the works? Tivo HD is a great Home Theater addition and it should be able to do a few simple things.

    My receiver is Onkyo TX-SR504.

    Thanks.
     
  10. May 15, 2008 #70 of 188
    raghu1111

    raghu1111 Member

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    Nov 16, 2005
    Oops! The above was meant to be new thread! will do that.
     
  11. May 16, 2008 #71 of 188
    mike_camden

    mike_camden New Member

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    Dec 11, 2006
    Hey Raghu,
    Are you getting any of the audio drop outs when you're just watching a channel for an hour or so? What you are describing is exactly what I see when I change channels also (as well as when ff or rewind, which causes a couple second pause); however, my big problem is when the receievr loses the audio signal periodically and audio drops for a second or two. This doesn't happen on the recording, so I have been getting around it by having live tv rewound about a second or two behind real-time.
     
  12. May 16, 2008 #72 of 188
    ilh

    ilh New Member

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    Dec 21, 2007
    I get occasional DD dropouts while watching recorded material, maybe one every hour or two.
     
  13. May 16, 2008 #73 of 188
    RoundBoy

    RoundBoy New Member

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    Feb 10, 2005
    I just noticed this last night... i have the new Onkyo 606, and previous to this I only had 3.1 hooked up, using the processing mode to 'fake' 5.1

    Since last night I put in actual side speakers, I now listen in DD5.1 direct, and I notice that every so often, I seem to loose a channel of audio... like the center, or the fronts.

    fast forwarding and then playing, results in very muted audio for a second or two, then everything 'kicks in' to full.
     
  14. May 16, 2008 #74 of 188
    ski4404

    ski4404 New Member

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    Dec 7, 2006
    I have this issue also on my TivoHD hooked up by optical to my Onkyo receiver. Audio stream seems to drop out while watching live TV. Sometimes changing the channel a few times fixes it, but I'm not 100% sure. It gets worse as time goes on, eventually I end up rebooting to clear it up. Very frustrating.
     
  15. May 16, 2008 #75 of 188
    raghu1111

    raghu1111 Member

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    Nov 16, 2005
    I haven't noticed this yet. I don't think I have watched for half an hour or so without interruption yet. So when this happens, you don't get any audio until you change channel or FF etc?

    This seems pretty lame on Tivo HD's part.
     
  16. May 17, 2008 #76 of 188
    martlist

    martlist New Member

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    May 17, 2008
    I have this problem too and at times it is really bad. Watching ABC HD now and it is happening once or twice a minute, sometimes more. Basically unwatchable.

    I am going over HDMI to an Onkyo 605

    Martin
     
  17. May 18, 2008 #77 of 188
    kenrippy

    kenrippy New Member

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    Jun 27, 2006
    so. cal
    i think it has more to do with flaky cable cards. try switching cards (if using 2 S-cards) or tuners on the M-card and see if it makes any difference.

    i have 2 S-cards, sometimes they "flake out" and i can change tuners/cards and it clears up. you may have to start recording so you can be sure you actually switch to the other card.

    i have an onkyo 605 getting HDMI also.
     
  18. May 19, 2008 #78 of 188
    martlist

    martlist New Member

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    May 17, 2008
    Surely it cannot be the cable card if recorded programs work fine and only live TV has this problem?
     
  19. May 27, 2008 #79 of 188
    outpost

    outpost New Member

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    Apr 9, 2008
    I do not have cable, so it always occurrs from off-air recording, whether "live" or a saved recording. Live isn't really live, anyway. We are always playing off the hard drive, right?

    I called TiVo and reported it and told them of this long thread. Is it realistic to hope they will correct it?
     
  20. Jun 3, 2008 #80 of 188
    ah30k

    ah30k Well-Known Member

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    Jan 8, 2006
    I am seeing this problem on both of my receivers that are connected to my S3 (I drive two televisions with the single S3). One receiver is an older Denon connected via TosLink and the second receiver is a newer Pioneer connected via HDMI. The audio dropouts happen on some channels with a frequency of one every several minutes. Video shows no glitches. I see the indicators on the receivers droppping dolby and the audio drops for several milliseconds. I'm on FiOS (Mot) dual CableCARDs. Sorry for chiming in so late but the dropouts just got me to the point of researching threads on the topic.
     

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