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make the md file with no warnings

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KubaPro010
2025-03-25 17:33:58 +01:00
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README.md
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@@ -1,36 +1,45 @@
# fm95 # fm95
FM95 is a audio processor for FM, it does: FM95 is a audio processor for FM, it does:
- Pre-Emphasis - Pre-Emphasis
- Stereo - Stereo
- Polar Stereo - Polar Stereo
- SCA - SCA
Supports these inputs: Supports these inputs:
- Audio (via Pulse) - Audio (via Pulse)
- MPX (via Pulse) - MPX (via Pulse)
- RDS (via Pulse, expects unmodulated RDS, stereo, left channel on 57 KHz, right on 66.5) - RDS (via Pulse, expects unmodulated RDS, stereo, left channel on 57 KHz, right on 66.5)
- SCA (via Pulse) - SCA (via Pulse)
and one output: and one output:
- MPX (via Pulse) - MPX (via Pulse)
# How to compile? ## How to compile?
To compile you need `cmake` and `libpulse-dev`, if you have those then do these commands: To compile you need `cmake` and `libpulse-dev`, if you have those then do these commands:
```
```bash
mkdir build mkdir build
cd build cd build
cmake .. cmake ..
make make
``` ```
Done! Done!
# CPU Usage? ## CPU Usage?
Should run completly fine on a pi 5, right now with the preemp, on a pi 3b, its 32% Should run completly fine on a pi 5, right now with the preemp, on a pi 3b, its 32%
# Recommendations ## Recommendations
use a lpf, for example swh-plugins's lowpass_iir, for example: 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-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
pactl load-module module-loopback source=radio_audio.monitor sink=FM_Audio_lpf rate=48000 # from the apps to the filter pactl load-module module-loopback source=radio_audio.monitor sink=FM_Audio_lpf rate=48000 # from the apps to the filter