[digitalradio] Re: No audio from soundcard

[jhaynesatalumni]

This may seem too obvious, but get a pair of earphones and some
clip leads if necessary and see if you are getting audio out of
the cable that plugs into the radio.  That tells you whether the
trouble is in the computer, like something to do with the
volume controls, or in the radio like the D-mode that has been
mentioned.