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Thread: Troubleshooting live streaming issues

  1. #1

    Default Troubleshooting live streaming issues


    This forum post has moved to the following article:

    http://www.wowzamedia.com/forums/content.php?79

    Enjoy,
    The Wowza Team
    Last edited by charlie; 10-04-2010 at 11:43 AM.

  2. #2
    Join Date
    Aug 2010
    Posts
    23

    Default

    Hi there, I too am getting audio about half-a-second prior to video. Tried this post. Using wirecast on the flash low bandwidth, viewing using adobes opem source media player. Any idea how to set a fixed audio delay? Doesn't seem to drift.

  3. #3

    Default

    Adam,

    There is a delay parameter in the Application.xml - Let me dig it up and get back to you. I used that when I was using wirecast (back before it did native RTMP).

  4. #4
    Join Date
    Aug 2010
    Posts
    23

    Default

    Cheers. I'll RTFM in the meantime, but i recall seeing it around these foums but cant find it anymore. Bit odd really, is that a general hitch with wirecast eh.

  5. #5

    Default

    I thought it was an RTSP thing myself, but it could well be a Wirecast thing. Last I checked, Wirecast used quicktime's h.264 encoder, and I wasn't especially impressed with it.

    I'm still trying to find where that parameter is. I got it from Charlie a while back, and it's moderately obscure.

  6. #6

    Default

    Add the following property to the Streams/Properties in [install-dir]/conf/[application]/Application.xml (be sure to get the correct properties container - there are several in Application.xml):

    Code:
    <Property>
            <Name>audioLag</Name>
            <Value>250</Value>
            <Type>Integer</Type>
    </Property>
    Charlie

  7. #7
    Join Date
    Aug 2010
    Posts
    23

    Default

    Well thats interesting, it was a 750ms delay... Now to leave it running overnight and see if it drifts Seems to have fixed in the short term, thanks.

  8. #8

    Default

    Thanks, Charlie! I thought it was called "AudioDelay", no wonder I couldn't find it !


  9. #9

    Default

    Can this audioLag be used in conjunction with the other video and audio out of sync properties?

    Thanks
    Last edited by dnetman99; 09-17-2010 at 05:28 AM. Reason: wording

  10. #10

    Default

    My application has <Streams> as below:

    Code:
    <Streams>
    	<StreamType>live</StreamType>
    	<StorageDir>${com.wowza.wms.context.VHostConfigHome}/content</StorageDir>
    	<KeyDir>${com.wowza.wms.context.VHostConfigHome}/keys</KeyDir>
    </Streams>
    How would the properties be added to this? Around whats there or another with property inside it?

    Thanks

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