Audio (via Pulse)
MPX (via Pulse, basically passthrough, i don't recommend this unless you have something else than rds or sca to modulate, you could run chimer95 via here)
RDS (via Pulse, expects unmodulated RDS, stereo, left channel on 57 KHz, right on 66.5, rds95 is recommended here, in modulation this is inphase to the pilot)
RDS2 (via Pulse, expects unmodulated RDS, stereo, left channel on 71.25 KHz, rigth on 76 KHz)
SCA (via Pulse, by default on 67 khz with a 7 khz deviation)
DARC (via Pulse, stereo, with one left clock channel [change when data is changed] and other one is data which is expected to be nrzi with bit 1 being 1 here, and bit 0 being -1)

and one output:

MPX (via Pulse)

How to compile?

To compile you need cmake, liquid-dsp and libpulse-dev, if you have those then do these commands:

mkdir build
cd build
cmake ..
make

Done!

CPU Usage?

Should run completly fine on a pi 5, fine on a pi 3b (30% cpu, 45% with lpf)

Other Apps

FM95 also includes some other apps, such as chimer95 which generates GTS tones each half hour, and dcf95 which creates a DCF77 compatible signal, and vban95 now which is a buffered VBAN receiver

FM95 Calibration

FM95 features a calibration mode -V which instead of outputing the MPX just outputs a 400 hz tone, use that tone to match the deviation on your transmitter