Hi,
I have a broadcast FM (mono) receiver which works well, with good audio
and clean traces in the Time Domain. See
https://wiki.gnuradio.org/index.php/File:USRP_FM_fg.png
Then I made a stereo version. See
https://wiki.gnuradio.org/index.php/File:USRP_FM_stereo_fg.png Using
it, the sound has a distortion but does not have any audio underruns.
The traces in the Time Domain have a lot of "fuzz" (noise?).
Do I need a filter? If so, would it come before or after the WBFM
Receive PLL block?
Once I have a good design, I will use it as an Example Flowgraph.
Thanks for your help.
--
Barry Duggan KV4FV
