I don't understand in a deep, but it is running now:
as I told, the Audio settings are set to ASIO with my ONYX mixers-Firewire card. And, BiB is listening to that, otherwise it would not record the sound from the mixer.
In addition to that I have to set the Windows Audio input settings to that Firewire option (in general I've set that to the mentioned sta-Audio box to get the signal from a Turntable). So, BiB seem to need both. It's a bit confusing.
Thank's all, horst

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