Home Forums Breakaway Professional Products – [discontinued] Breakaway broadcast audio dropout

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  • #1785
    asxzdc
    Member

    Hi,

    We have a PC running BBP with no sound card configuration : we use BBP pipeline to process sound.
    -we use VLC to play a mp3 stream from a hardware encoder
    -we use pipeline 2 a default source in windows configuration
    -in BBP, we set up pipeline 2 as input source and pipeline 1 as output
    -we use edcast as output encoder to send processed stream to external shoutcast server

    All audio is on IP, it works fine but after nearly 60 / 70 hours of streaming, we are encountering complete audio dropouts. VLC is still connected but the stream is one second on air, one second next off, and so on.
    If I stop BBP, VLC is playing stream fine. If I restart VLC, problem is still there.
    The only thing to do is to restart PC, or restart BBP.

    Configuration:
    -we run windows 7 x64
    -we use latest version of BBP and VLC (2.1.3)
    -physical sound cards are disabled on PC
    -we use realtime process in BBP
    -we use KS mode for pipeline

    What's wrong with our config ?
    Should I set up a scheduled task to restart PC each night ?

    Thanks

    #13869
    timmywa
    Participant

    Max out your buffer sizes in BBP. Not number of buffers, 2 is usually fine, but push the buffer sizes all the way up.

    #13870
    asxzdc
    Member

    Hi,

    Thanks for this advice, but where I can set the buffer size ?

    #13871
    timmywa
    Participant

    Go into Settings and then click I/O settings, the buffer settings are in that page.

    #13872
    mpegfailsafe
    Member

    I found that I had to do something like this to get Live working correctly with an older Audioscience card, though the problem was flat-out stuttering upon the audio being connected for the first time.

    #13873
    JesseG
    Member

    Every system can be different.  I usually try to figure out what the best amount of buffer count is by trying to find the lowest buffer size that can work stable without using more than 8 buffers.  Then I'll switch the buffer size to double the stable size, and if needed keep going up till I find the next stable double+ size.

    Tim ended up having problems with only 2 buffers btw.  I recommended the above technique.  I haven't found any less than 3 buffers to be stable on a system yet.

Viewing 6 posts - 1 through 6 (of 6 total)
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