update readme

README.md

@@ -10,9 +10,9 @@ FM95 is a audio processor for FM, it does:
 Supports these inputs:
 
 - Audio (via Pulse)
-- MPX (via Pulse)
-- RDS (via Pulse, expects unmodulated RDS, stereo, left channel on 57 KHz, right on 66.5)
-- SCA (via Pulse)
+- MPX (via Pulse, basically passthrough, i don't recommend this unless you have something else than rds or sca to modulate)
+- 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)
+- SCA (via Pulse, by default on 67 khz with a 7 khz deviation)
 
 and one output:
 
@@ -33,7 +33,7 @@ Done!
 
 ## CPU Usage?
 
-Should run completly fine on a pi 5, right now with the preemp and rds2, on a pi 3b, its 25%
+Should run completly fine on a pi 5, right now with the preemp and rds2, on a pi 3b, its 25%-27%
 
 ## Recommendations
 
@@ -41,6 +41,10 @@ use a lpf, for example swh-plugins's lowpass_iir, for example:
 
 ```bash
 pactl load-module module-null-sink sink_name=FM_Audio rate=48000 # this goes to fm95
-pactl load-module module-ladspa-sink sink_name=FM_Audio_lpf sink_master=FM_Audio plugin=lowpass_iir_1891 label=lowpass_iir control=15000,6 rate=48000 # use 4 poles minimum
+pactl load-module module-ladspa-sink sink_name=FM_Audio_lpf sink_master=FM_Audio plugin=lowpass_iir_1891 label=lowpass_iir control=15000,6 rate=48000 # use 4 poles minimum, i recommend 6
 pactl load-module module-loopback source=radio_audio.monitor sink=FM_Audio_lpf rate=48000 # from the apps to the filter
 ```
+
+## 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