diff --git a/lib/streams.nix b/lib/streams.nix
index 7119dc3..ba06a25 100644
--- a/lib/streams.nix
+++ b/lib/streams.nix
@@ -2019,6 +2019,10 @@ in
       stream = "http://mp3.ffh.de/radioffh/hqlivestream.mp3";
       station = "Hitradio FFH";
     }
+    { # Lex Fridman's favourite
+      stream = "av://lavfi:anoisesrc=color=brown";
+      station = "Brownian noise";
+    }
   ]
   ++ map (name: {
     stream = "https://${name}.stream.publicradio.org/${name}.aac";
diff --git a/packages/noise-waves.nix b/packages/noise-waves.nix
index 93abc89..3e6c44c 100644
--- a/packages/noise-waves.nix
+++ b/packages/noise-waves.nix
@@ -1,7 +1,7 @@
 { sox, mpv, writers, coreutils }:
 # ref https://askubuntu.com/a/789472
 writers.writeDashBin "noise-waves" ''
-  file="/tmp/noise.wav"
+  file="/tmp/noise-$(${coreutils}/bin/date +%s | ${coreutils}/bin/md5sum | ${coreutils}/bin/cut -d' ' -f1).wav"
   trap clean EXIT
   clean() {
     rm "$file"
@@ -9,6 +9,9 @@ writers.writeDashBin "noise-waves" ''
 
   ${coreutils}/bin/mkfifo "$file"
 
-  ${sox}/bin/sox -n "$file" synth brownnoise synth pinknoise mix synth sine amod 0.3 10 &
+  ${sox}/bin/sox -c2 -r44.1k -b8 -n "$file" synth brownnoise synth pinknoise mix synth sine amod 0.3 10 &
   ${mpv}/bin/mpv "$file"
 ''
+
+# play -c2 -r44.1k -b8 -n synth -1 brownnoise .1 40
+# play -c2 -r44.1k -b8 -n synth -1 pinknoise .1 60