updates

op25-container/app/internal/op25_liq_template.py

@@ -27,18 +27,25 @@ input = compress(input, attack = 2.0, gain = 0.0, knee = 13.0, ratio = 2.0, rele
 input = normalize(input, gain_max = 6.0, gain_min = -6.0, target = -16.0, threshold = -65.0)
 
 # ==========================================================
-# OUTPUT: Referencing the new variables
+# OUTPUTS
 # ==========================================================
+
+# Primary: PulseAudio null sink — used by edge-node for Discord streaming and call recording.
+# The edge-node reads from the drb_sink.monitor source (set as PulseAudio default source).
+output.pulseaudio(mean(input))
+
+# Secondary: Icecast — for browser-based listening only (local node UI / server stream page).
+# Do NOT use Icecast for recording or Discord; it introduces 2-5s buffering lag.
 output.icecast(
-    %mp3(bitrate=16, samplerate=22050, stereo=false), 
-    description=ICE_DESCRIPTION, 
-    genre=ICE_GENRE, 
-    url="", 
-    fallible=false, 
-    host=ICE_HOST, 
-    port=ICE_PORT, 
-    mount=ICE_MOUNT, 
-    password=ICE_PASSWORD, 
+    %mp3(bitrate=16, samplerate=22050, stereo=false),
+    description=ICE_DESCRIPTION,
+    genre=ICE_GENRE,
+    url="",
+    fallible=false,
+    host=ICE_HOST,
+    port=ICE_PORT,
+    mount=ICE_MOUNT,
+    password=ICE_PASSWORD,
     mean(input)
 )
 """

op25-container/docker-entrypoint.sh

@@ -4,6 +4,8 @@
 # The -D flag starts it as a daemon. 
 # The --exit-idle-time=-1 prevents it from automatically shutting down.
 echo "Starting PulseAudio daemon..."
+mkdir -p /run/pulse
+chmod 777 /run/pulse
 pulseaudio -D --exit-idle-time=-1 --system
 
 # Wait a moment for PulseAudio to initialize

op25-container/system.pa

@@ -1,16 +1,22 @@
 # PulseAudio system daemon configuration for DRB containers.
-# Allows anonymous connections so the edge-node container can read the audio monitor.
+#
+# Audio architecture:
+#   Liquidsoap (op25 container) → output.pulseaudio() → drb_sink (null sink)
+#   FFmpeg (edge-node container) → -f pulse -i default → drb_sink.monitor
+#
+# Icecast is a secondary output for browser listening only.
+# PulseAudio is the primary path for Discord streaming and call recording.
 
 .nofail
 
 # Native protocol with anonymous auth — required for inter-container access
 load-module module-native-protocol-unix socket=/run/pulse/native auth-anonymous=1
 
-# Always provide a default sink even without audio hardware
-load-module module-always-sink
+# Named null sink — Liquidsoap outputs here; edge-node records from its monitor
+load-module module-null-sink sink_name=drb_sink sink_properties=device.description=DRB-Sink
 
-# Restore device/stream settings across restarts
-load-module module-device-restore
-load-module module-stream-restore
+# Make the sink and its monitor the system defaults
+set-default-sink drb_sink
+set-default-source drb_sink.monitor
 
 .fail