AC3 Audio out of sync/AC3 Problems (1 Viewer)

Commodore 64

Retired Team Member
  • Premium Supporter
  • June 20, 2005
    328
    1
    44
    United States of America United States of America
    I have audio sync issues with the 4/10/2006 SVN. Pausing/restartign does not fix the issue. Audio lags about a second behind video.
     

    Commodore 64

    Retired Team Member
  • Premium Supporter
  • June 20, 2005
    328
    1
    44
    United States of America United States of America
    Windows Version: Windows XP SP2
    CPU Type: Pentium 4
    Memory: 1GB PC3200
    Motherboard: Asus P4PE800 Deluxe
    Motherboard Chipset: i865PE
    Motherboard Bios:
    Video Card: Gigabyte 6600GT
    Video Card Driver: 83.60
    Sound Card: Onboard
    Sound Card AC3: Optical Out
    Sound Card Driver:
    1. TV Card: Vbox DTA-150
    1. TV Card Type: ATSC
    1. TV Card Driver: BDA
    2. TV Card: Fusion 5 Lite
    2. TV Card Type: ATSC
    2. TV Card Driver: BDA
    Video Codec: NVidia Purevideo
    Audio Codec: Mpeg/AC3/DD.../Nvidia Audio Decoder
    Satelite/CableTV Provider: OTA
    HTPC Case: Silverstone LC03V
    Power Supply: Silvertsone Strider 400w
    Remote: MCE USA
    TV: Philips 30PW8520 (30" Widescreen CRT)
    TV - HTPC Connection: Component

    Using the 4-13-06 SVN Build, I have duplicated the original poster's issue. On my setup, all TV channels have AC3 sound.

    Start MyTV, enable timeshifting and watch it for a while. The audio progressively becomes out of sync. Rewinding a bit into the TS buffer fixes the issue.

    Also, when viewing TV without TS on, after a time, the audio begins to to go crazy. The signal drops in and out, My audio receiver indicates that it is intermittently getting a signal. I have to completely stop myTV in order to resolve the issue.

    I think the 2 issues are related to AC3 in the OTA broadcast somehow.

    I've attached logs, but they really don't seem to show anything amiss, as far as I can tell.

    edit: Added the issue to Mantis: http://mantis.team-mediaportal.com/view.php?id=737
     

    Commodore 64

    Retired Team Member
  • Premium Supporter
  • June 20, 2005
    328
    1
    44
    United States of America United States of America
    It does not occur with TS off.

    However, after a time, with TS off, AC3 sound will have a different issue. The signal drops in and out. The timing when this happens is about the same timing as when the Audio becomes out of sync when TS is on, so I think the issues are related.
     

    imported_KRA

    Portal Member
    March 19, 2006
    32
    0
    42
    I see it has been confirmed as a bug now, that's good, because I just watched a movie (AC3) with my FloppyDTV-S, and noticed that the sound was drifting away from the image... a quick 15 second skip back and it was back in sync, or at least almost...
     

    bradsjm

    Retired Team Member
  • Premium Supporter
  • October 28, 2005
    77
    0
    New York City, USA
    United States of America United States of America
    Windows Version: Windows XP SP2
    CPU Type: AMD 64 3200+ [Socket 939]
    Memory: 1GB
    Motherboard: ASUS A8N-VM CSM
    Motherboard Chipset: NVIDIA nForce 430
    Motherboard Bios: ASUS 0702
    Video Card: NVIDIA 6600GT
    Video Card Driver: 84.21
    Sound Card: AuzenTech X-Plosion
    Sound Card AC3: Optical Out
    Sound Card Driver: 5.12
    1. TV Card: Avermedia A180
    1. TV Card Type: ATSC
    1. TV Card Driver: 1.2.2.23
    2. TV Card:
    2. TV Card Type:
    2. TV Card Driver:
    Video Codec: NVIDIA PureVideo 4020.203
    Audio Codec: AC3Filter 1.0.1.0
    Satelite/CableTV Provider:
    HTPC Case: Origen AE X15
    Power Supply: Seasonic 430W
    Remote: MCE 2005
    TV: BENQ Projector
    TV - HTPC Connection: VGA (800x453)

    This issue is easily reproducable for me. I have the Avermedia A180. It works fine in SageTV but audio is out of sync immediately when I go into any TV channel and then gets worse the longer I view. This is without timeshifting.

    I've tried different audio and video decoders, Nvidia, Avermedia etc. and audio decoders (NVidia, AC3Filter etc.) with no perceptable difference. Logs are attached.
     

    petteram

    Portal Pro
    November 4, 2005
    177
    0
    55
    Norway
    KRA.
    which channels have AC3?
    You are using Canal Digital?
    I always have TS on and I have optical out from my soundcard
    to my Logitech Z-5500 speakers, but havent noticed any sync problems.
     

    Commodore 64

    Retired Team Member
  • Premium Supporter
  • June 20, 2005
    328
    1
    44
    United States of America United States of America
    Windows Version: Windows XP SP2
    CPU Type: Pentium 4
    Memory: 1GB PC3200
    Motherboard: Asus P4PE800 Deluxe
    Motherboard Chipset: i865PE
    Motherboard Bios:
    Video Card: Gigabyte 6600GT
    Video Card Driver: 83.60
    Sound Card: Onboard
    Sound Card AC3: Optical Out
    Sound Card Driver:
    1. TV Card: Vbox DTA-150
    1. TV Card Type: ATSC
    1. TV Card Driver: BDA
    2. TV Card: Fusion 5 Lite
    2. TV Card Type: ATSC
    2. TV Card Driver: BDA
    Video Codec: NVidia Purevideo
    Audio Codec: NVidia Audio Decoder
    Satelite/CableTV Provider: OTA
    HTPC Case: Silverstone LC03V
    Power Supply: Silvertsone Strider 400w
    Remote: MCE USA
    TV: Philips 30PW8520 (30" Widescreen CRT)
    TV - HTPC Connection: Component

    This morning, I left the TV on when I went to work. MP was using the Fusion5Lite to tune WKYC-HD. When my wife woke up some time later, she said the audio was gone, so she dropped out of MyTV, and back in to MyTV and said there was audio, but no picture.

    I glanced through the MP log, and I noticed that there is an instance of "No Signal Detected", which is odd because WKYC-HD always tunes fine. I can't help but thing these issues are somehow related to bug 00697.

    uploaded Fusion5_NoTSlog.rar to document this instance.
     

    Users Who Are Viewing This Thread (Users: 0, Guests: 1)

    OP Similar threads Forum Replies Date
    ge2301 MP2 and E-AC3 5.1 General 2
    Golf4 TV-Records werden als Audio-Files importiert ? Allgemeines Support- und Diskussionsforum 0
    W [solved] Incorrect audio being reported Moving Pictures 4
    404 [solved] Live TV...video and audio freeze General Support 20
    ninja 12 Audio dropouts with Dolby / DTS watch/edit Videos 12
    bta489 [solved] DVB-T2 Recordings: Sometimes no Audio after muxing with mkvmerge Tools and other software 2
    T [solved] MP2 Switch off visualisation when listening to audio....PLEASE!!! General 23
    azzuro [fixed] [WIP MP2.3] - Audio files not imported to MP MediaPortal 2 18
    S Remote button to change audio and subtitle on / off General 10
    F Audio render and font error in my logs General Support 2
    R [solved] Command / Shortcut for changing subtitles or audio Archive 5
    K Multichannel audio and subtitles for TV not properly supported General Support 4
    Glith Audio out of sync after pause. Rewind 15sec gets it into sync again. MediaPortal 1 Talk 0
    C ARC Audio Renderer Changer: wo kann man es konfigurieren? Video & DVD 15
    joecrow No Audio after MP Start/Resume from Sleep General Support 0
    C Ability to browse videos and audio by folder General 2
    Lichloathe Offline audio content General 9
    G How best to get cover art for tracks to show up on the Audio Menu (Latest Added, Unplayed)? General 9
    Ralph Holmes Wrong audio source in TV General 1
    CyberSimian [Proposal] Audio description MediaPortal 1 10
    ge2301 [fixed] [MP2-807] Problem when switching player in PiP mode with audio files MediaPortal 2 32
    cladinshadows85 [solved] Audio playing mutiple times over video and crashing General 8
    H Live TV info OSD not displaying number of audio channels General Support 3
    T Moving Pictures...seem to have 'lost' ability to display Movie info. (eg Resolution/Audio) Moving Pictures 2
    N [fixed] [MP2-786] Cannot play audio playlist with >=1000 entries 2.2 Archive 36
    Similar threads

























    Top Bottom