diff --git a/rvs/server.js b/rvs/server.js
index 255ca7b..d55d74d 100644
--- a/rvs/server.js
+++ b/rvs/server.js
@@ -54,7 +54,10 @@ function cleanupRooms() {
 
 // ── WebSocket-Server starten ────────────────────────────────────────
 
-const wss = new WebSocketServer({ port: PORT });
+// maxPayload 50MB: TTS-Streaming + Voice-Upload (WAV als base64) +
+// audio_pcm Chunks koennen die ws-Library Default 1MB ueberschreiten.
+// Default-Limit war der Killer fuer die voice_upload Pipeline.
+const wss = new WebSocketServer({ port: PORT, maxPayload: 50 * 1024 * 1024 });
 
 wss.on("listening", () => {
   log(`RVS läuft auf Port ${PORT} | Max Sessions: ${MAX_SESSIONS}`);
diff --git a/xtts/whisper/bridge.py b/xtts/whisper/bridge.py
index e44022f..90b38f0 100644
--- a/xtts/whisper/bridge.py
+++ b/xtts/whisper/bridge.py
@@ -212,7 +212,10 @@ async def run_loop(runner: WhisperRunner) -> None:
         masked = url.replace(RVS_TOKEN, "***") if RVS_TOKEN else url
         try:
             logger.info("Verbinde zu RVS: %s", masked)
-            async with websockets.connect(url, ping_interval=20, ping_timeout=10) as ws:
+            # max_size 50MB damit grosse stt_request (Voice-Cloning-WAVs als
+            # base64 koennen mehrere MB werden) nicht das Frame-Limit sprengen
+            # und die Verbindung mit 1009 'message too big' killen.
+            async with websockets.connect(url, ping_interval=20, ping_timeout=10, max_size=50 * 1024 * 1024) as ws:
                 logger.info("RVS verbunden")
                 retry_s = 2
                 tls_fallback_tried = False