----- Original Message -----
Subject: [softrock40] Audio
> How do you hear what radio is receiving?
> With mike out jack pluged on my laptop
> I get no sound???
It seems to me you are asking "what is an SDR?"
If that is so then <https://sites.google.com/site/g4zfqradio/configuring-a-softrock-sdr> gives some pointers.
73 Alan G4ZFQ