Here is the screen capture of the Marcus Leech version of the two FM demodulate as described here
https://wiki.gnuradio.org/index.php?title=Frequency_Xlating_FIR_Filter https://github.com/patchvonbraun/wfm_stuffWith a samplerate of 2.4M it uses about 60% of the 4 core I5 I am using for this project
If anybody wants the grc pm me. The other email contains the Zans version of stereo demod.
2fmtopblock.pdf
Description: Adobe PDF document
wfm_stereo-heir.pdf
Description: Adobe PDF document