add read me

test_snapcast.sh

@@ -0,0 +1,21 @@
+#!/bin/bash
+SNAP_IP="127.0.0.1"
+SNAP_PORT="4953"
+
+echo "1. Testing connection to $SNAP_IP:$SNAP_PORT..."
+# Check if port is open
+if ! nc -z -v "$SNAP_IP" "$SNAP_PORT"; then
+    echo "ERROR: Port closed! Snapserver not listening on TCP."
+    exit 1
+fi
+echo "   Port Open."
+
+echo "2. Generating 3-second test tone (48k Stereo 16-bit)..."
+# Generate pure sine wave, raw PCM, no headers
+# -n = null input (synth)
+# -t raw = raw output
+# -r 48000 -c 2 -b 16 -e signed = match Snapserver config EXACTLY
+sox -V3 -n -t raw -r 48000 -c 2 -b 16 -e signed-integer - synth 3 sine 440 vol 0.8 \
+    | nc -N "$SNAP_IP" "$SNAP_PORT"
+
+echo "3. Sent. Did you hear a beep?"