diff --git a/src/main.cpp b/src/main.cpp
index eee4bec..af25438 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -12,10 +12,10 @@ void setup() {
 
   playerSetup();
   playlistClear();
-  playlistAdd("ICY|http://liveradio.sr.de/sr/sr1/mp3/128/stream.mp3|SR1");
-  playlistAdd("ICY|http://uk3.internet-radio.com:8082/live|1940s Radio");
-  playlistAdd("ICY|https://das-edge16-live365-dal02.cdnstream.com/a22508|Mistletoe Radio");
-  playlistAdd("ICY|https://stream.rockantenne.de/rockantenne/stream/mp3|Rockantenne Classic Perlen");
+  playlistAdd("ICY|http://liveradio.sr.de/sr/sr1/mp3/128/stream.mp3|SR1"); // 48000 Hz
+  playlistAdd("ICY|http://uk3.internet-radio.com:8082/live|1940s Radio"); // 44100 Hz TODO stuttering
+  playlistAdd("ICY|https://das-edge16-live365-dal02.cdnstream.com/a22508|Mistletoe Radio"); // 44100 Hz TODO stuttering
+  playlistAdd("ICY|https://stream.rockantenne.de/rockantenne/stream/mp3|Rockantenne Classic Perlen"); // 44100 Hz TODO stuttering
 
   wifiLoop();
   httpSetup();