Hi there,

I am using an external Presonus firebox for audio processing for WSJT & WSPR operations.
The same audio mapping run with WSJT (Tx sound generated) and not for WSPR (no sound fed to the radio).
In both case Rx sampling is working ok.

I can't use the 'default' mixer output as there are others soundstreams (coming from my SDR1000 & others apps) nor the input 'line audio' as the audio response is very noisy and bad.

Any idea ?
I'm running VISTA / 4400+

73 F1HDI