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filter driver ?

Discussion in 'Soundcards' started by Lior, Jul 21, 2004.

  1. Lior

    Lior Guest

    Hello guys,

    My name is Lior.
    I need your help with a project I am currently working on.
    I need to catch sound traveling from the modems speaker phone to the
    sound board (SB).
    the sound is not traveling with wave-in/out commands but in a certain
    driver level, cause all of the sound when a conversation is started,
    is directed to the SB automatically (even when I track the number of
    current active streams, with my SB monitor program, I don't see any
    change in the number of streams when the call is beginning, meaning it
    is all done in a lower level, so I think).
    As I said, I need to capture that sound so I can decide what to do
    with it - transfer it somewhere else or let it pass me to the SB.

    I understand that I need to develop a filter driver, after reading
    much on KS I still don't know which layer a filter driver I need. Is
    it a lower level filter driver (below the functional driver) ? or an
    upper filter driver (above the functional driver) ?

    Please help.

    I also need to simulate a mic connected to the SB.
    Meaning fooling the SB that he gets sound from the mic-in jack when
    actually I am transmitting to him sound from a socket.
    Can that be done in the same filter driver ??

    Thanks in advance,
    Lior Knaany.
    Lior, Jul 21, 2004
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  2. Lior

    Max Paklin Guest

    Filtering KS drivers is not documented and is not supported.
    See archieves. This topic has been discussed to death in the past.

    -- Max.
    Max Paklin, Jul 21, 2006
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