[TV] HD-PVR TV Jitters After Channel Change (1 Viewer)

WileECoyote

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  • October 14, 2008
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    • #1
    MediaPortal Version: 1.1.0 Beta
    MediaPortal Skin: Theatre
    Windows Version: Windows 7
    CPU Type: Intel Core 2 Quad 2.66
    HDD: Patriot 64GB SSD
    Memory: 4GB
    Motherboard: Intel DP45ID
    Video Card: Intel 4500 HD
    Video Card Driver:
    Sound Card: On-Board Intel HD-Audio
    Sound Card AC3: Optical Out
    Sound Card Driver:
    1. TV Card: Hauppauge HD-PVR
    1. TV Card Type: Analog
    1. TV Card Driver:
    2. TV Card: Hauppauge HD-PVR
    2. TV Card Type: Analog
    2. TV Card Driver:
    3. TV Card: Hauppauge HVR-1600
    3. TV Card Type: QAM, Analog
    3. TV Card Driver:
    4. TV Card:
    4. TV Card Type:
    4. TV Card Driver:
    MPEG2 Video Codec:
    MPEG2 Audio Codec:
    h.264 Video Codec: CoreAVC, Arcsoft, Cyberlink
    Satelite/CableTV Provider: DirecTV
    HTPC Case: Silverstone LC19
    Cooling:
    Power Supply:
    Remote: MCE
    TV: Sanyo PLV-Z5
    TV - HTPC Connection: HDMI


    When Dolby Digital is enabled, the HD-PVR will jitter after a channel change. If you pause for a second or two, it clears up the jitter. I have attached logs...
     

    Attachments

    antonehenry

    Portal Pro
    June 30, 2008
    102
    1
    MediaPortal Version: 1.0.2
    MediaPortal Skin: StreamedMP
    Windows Version: Windows XP SP3
    CPU Type: Intel Core 2 Duo 2.2
    HDD: WD Sata
    Memory: 2GB
    Motherboard: Intel g33
    Video Card: NVIDIA 9500gt
    Video Card Driver:
    Sound Card: On-Board Intel HD-Audio
    Sound Card AC3: Optical Out
    Sound Card Driver:
    1. TV Card: Hauppauge HD-PVR
    1. TV Card Type: Analog
    1. TV Card Driver:
    MPEG2 Video Codec:
    MPEG2 Audio Codec:
    h.264 Video Codec: CoreAVC, Arcsoft, Cyberlink
    Satelite/CableTV Provider: Comcast
    TV: Samsung 42" DLP
    TV - HTPC Connection: DVI>VGA

    I have this same issue.
     

    sjeffrey

    Portal Pro
    August 22, 2008
    232
    7
    Canada
    Home Country
    Canada Canada
    Same problems.
    Problem has existed since pre-release of MP 1.0 and still exists in latest svn build.

    It seems to be a problem with the playback hitting the end timeshift stream.
    One thing I justed noticed is that when playing back the portion when a channel change happened my STB on screen diplay of current channel and program is on much shorter then it really is if I was directly viewing from STB. Meaning usually I'll see the onscreen display for about 3 seconds while as the recorded timeshift has the onscreen display for barely 1 seconds.

    Another thing is when channel changing the HD-PVR's blue timeshifting led will flicker once or twice.

    Problem seems to only exists when using digital audio.

    Logs attached.
     

    WileECoyote

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    • #4
    I've actually done some more testing and have narrowed it down to using SPDIF. I have the following machines setup...

    A - MP Server with HDMI Video/Audio out to receiver. (Using Arcsoft Video & AC3Filter audio codecs)
    B - Client with 6 channel speaker outputs to receiver. (Using Cyberlink PowerDVD 8 Video & AC3Filter audio codecs)
    C - Client with stereo speaker outputs to TV. (Using Arcsoft Video & MPC audo codecs)
    D - Client with stereo speaker outputs to TV. (Using Arcsoft Video & MPC audo codecs)

    If I use the SPDIF out's to the receiver on machines A & B, I will see the jitter on channel change. Using the HDMI & Speaker outputs on machines A&B respectively there is no jitter. Machines C & D have never had an issue because they use the speaker outputs.

    If any developers are monitoring this thread and would like more information, please let me know.

    Thanks,
    Wile E.
     

    jbf154

    Portal Member
    February 6, 2007
    32
    2
    Home Country
    United States of America United States of America
    I have the same problem. It only happens when using SPDIF audio. A quick pause/play after changing channels seems to fix it.
     

    cwchapma

    Portal Pro
    October 15, 2006
    56
    34
    44
    Home Country
    Canada Canada
    This is still an issue. Anybody with any ideas on how to fix this? A quick pause/play does it fix it but shouldn't be required.

    Thanks,
    Clint
     

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