From 668642cfc771840904ff40715adc730adafc1f20 Mon Sep 17 00:00:00 2001 From: KubaPro010 Date: Sun, 9 Mar 2025 09:52:28 +0100 Subject: [PATCH] readme --- README.md | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/README.md b/README.md index dde8820..2034805 100644 --- a/README.md +++ b/README.md @@ -1,7 +1,6 @@ # fm95 FM95 is a audio processor for FM, it does: - Pre-Emphasis -- Low Pass Filter - Stereo - Polar Stereo - SCA @@ -25,4 +24,13 @@ make Done! # CPU Usage? -Should run completly fine on a pi 5, right now with the preemp, lpf, compressor on a pi 3b, its 35-40% cpu usage, get rid of compressor and it goes to 20% \ No newline at end of file +Should run completly fine on a pi 5, right now with the preemp, on a pi 3b, its 20% + +# Recommendations +use a lpf, for example swh-plugins's lowpass_iir, for example: + +``` +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-loopback source=radio_audio.monitor sink=FM_Audio_lpf rate=48000 # from the apps to the filter +``` \ No newline at end of file