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Thread: Spark SDI Audio Issues

  1. #1
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    Spark SDI Audio Issues

    Assistance with debug, please.

    Spark NDI device.
    Video is beautiful, no loss observed.
    Audio has 2 issues: 1) high noise floor, 2) “choppy”.

    Audio sounds like possible frame drop, but not seeing frame drop.
    (Can someone enlighten on good way to detect frame drop, just to make sure?)

    Attached clip demonstrates: begins with SDI direct to TC input, ends with SDI through Spark.

    ** TEST SETUP **
    SDI source with multiple outputs, one to TC SDI Video In 4, second to Spark arriving at TC on NET 2.
    Spark and TC are sitting on a 1 GB network, separated by a single switch.

    ** EQUIPMENT **
    All Windows updates installed.
    Latest TriCaster version installed.
    Latest Spark Firmware flashed.

    Spark Info …
    Hardware Version = 1.6
    Firmware Version = 3.77.0404

    TriCaster Info …
    NewTek TriCaster TCXD460
    Build Number: 2-6-170817C
    Hardware Version
    -----Card 0 info:
    Driver: 1.99, 19-Apr-2017
    Core: 3E84, 6-Jul-2017
    Config: XD450 FPGA in Arria I
    Link: x4
    Board: 1.3
    Panel: TriCaster XD450 0.5
    Video Card
    NVIDIA GeForce GT 440
    Attached Files Attached Files

  2. #2
    'the write stuff' SBowie's Avatar
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    This is a nicely detailed bug report, thanks. This isn't really the place where we can file bug reports, though. Can I gently suggest posting it to our Fogbugz database, so QA can review it?

    http://forums.newtek.com/showthread....Reporting-Bugs
    --
    Regards, Steve
    Forum Moderator
    ("You've got to ask yourself one question ... 'Do I feel lucky?' Well, do ya, spammer?")

  3. #3
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    Thank you, Steve, for the redirect. I initially looked at the FogBugz DB, however, did not find an appropriate catagory.
    Also, I thought I might get some input from others on:
    a) "Yes, I've seen that, too" (To confirm I am not crazy, which is another topic)
    b) This is how you determine if you are having dropped frames.

    I will place it somewhere within FogBugz.

  4. #4
    'the write stuff' SBowie's Avatar
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    Quote Originally Posted by Muehl View Post
    Thank you, Steve, for the redirect. I initially looked at the FogBugz DB, however, did not find an appropriate catagory.
    Also, I thought I might get some input from others on:
    a) "Yes, I've seen that, too" (To confirm I am not crazy, which is another topic)
    b) This is how you determine if you are having dropped frames.

    I will place it somewhere within FogBugz.
    Yes, I understand, not finding fault - just want to get this someplace internally where it will be noticed. When in doubt about Project or Area in Fogbugz, just choose anything that mentions QA - they'll redirect it tom the appropriate place as necessary.
    --
    Regards, Steve
    Forum Moderator
    ("You've got to ask yourself one question ... 'Do I feel lucky?' Well, do ya, spammer?")

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