Well, hello there.

I'm working on a little project using a RTL_SDR dongle in a Raspberry Pi.  I have it successfully tuning using RTL_FM and outputting the audio over the onboard sound.

The command I'm using for 87.9 FM is:

rtl_fm -f 87900000 -M wfm -s 190k -p 59 -r 48k - | play -t raw -r 48k -b 16 -e signed-integer - -c 1

This is working fine, however the audio is Mono, not Stereo as is broadcast.   Does anyone else have any experience using the above and is this expected?
I could be missing a parameter.

Thanks,

Grant