Production Switchers

Expand all | Collapse all

Audio Problem

  • 1.  Audio Problem

    Posted 03-04-2021 19:02
    Hi, there. We have recently installed rossvideo carbonite ultra on our 24/7 broadcast chain. We have faced some problem with Audio. We have 2 playout servers(Cinegy OnAir, and BMD Decklink 4K Extreme) that we have embedded audio coming out from the playout servers into the Ultra. Audio standard is configured as 48kHz, 24bit (AAC) . The problem is sometimes Ultra strips audio from the playout servers . We checked the outs from the playlout servers via Monitors, test equipment the embedded audio can be heard on them, whereas On the main out from Ultra Audio cannot be observed. What can cause such a bewildered situation?

  • 2.  RE: Audio Problem

    Ross Staff
    Posted 03-04-2021 19:08

    Are you using the RAVE Audio Mixer in Ultra to do the AFV and Mixing of Audio?

    If you are just using the "pass through" of the audio on the source and not using the RAVE Mixer then you will only get the audio of the source that is on the Bkgd Bus of the switcher..

    Sources that go into FrameSyncs would also then have them stripped since you would not be running the Sample Rate Conversion mode either.

    Wiring diagrams and image examples of what the output looks like when the audio is not present would help here but my guess is that you do a Squeeze back or a BOX effect in the Ultra and thus the Server video is not on the BKGD but rather in a Key which means that you don't have audio since you would not be using the RAVE Audio mixer option.


  • 3.  RE: Audio Problem

    Posted 03-04-2021 19:19

    We are not using RAVE, and have not created any box effects or squeeze back. We just configured as Pass Through audio. For an instance, we have a 48 minutes Video Material and around 10minutes it works great and audio is passing normally, all of sudden audio disappears. After shutting down off/on again it starts working as normal as before.


  • 4.  RE: Audio Problem

    Posted 03-04-2021 19:28

    by writing shutting down off/on I do mean Ultra


  • 5.  RE: Audio Problem

    Ross Staff
    Posted 03-04-2021 23:02

    what version of software are you on?  Have you contacted Tech support?