Plugin request: polar stereo demodulation

Tudor Vedeanu

The current sporadic-E season brought many FM stations on the OIRT FM band, some of them broadcasting stereo using polar modulation. Is anyone interested in making a SDR# plugin for demodulating those signals? I could provide some sample recordings for testing.

Brief information regarding the polar stereo modulation:

Someone on this group mentioned that Gqrx already has this implemented:

This should be the code:

So I'm hoping it's not that difficult to take the MPX stream and run it through a similar demodulator.

Many thanks!