services/mam-api/src/routes/assets.js

@@ -674,7 +674,7 @@ router.get('/:id/stream', async (req, res, next) => {
     if (a.hls_s3_key) {
       return res.json({
         url: `/api/v1/assets/${id}/video`,
-        type: 'mp4',
+        type: 'hls',
         source: a.proxy_s3_key ? 'proxy' : 'original',
         hls_url: `/api/v1/assets/${id}/hls/playlist.m3u8`,
       });

services/web-ui/public/screens-editor.jsx

@@ -647,8 +647,14 @@ function ProgramMonitor({ videoRef, currentSeq, playheadFrames, setPlayheadFrame
     if (vid) vid.pause();
   }
 
+  // Audio track refs for playback
+  const pgmAudioRefs = React.useRef([]);
+
   React.useEffect(() => {
-    if (!pgmPlaying || pgmClipIdx < 0 || pgmClipIdx >= pgmClips.length) return;
+    if (!pgmPlaying || pgmClipIdx < 0 || pgmClipIdx >= pgmClips.length) {
+      pgmAudioRefs.current.forEach(a => a.pause());
+      return;
+    }
     const clip = pgmClips[pgmClipIdx];
     if (!clip) { stopPgm(); return; }
     const vid = videoRef.current;
@@ -676,6 +682,14 @@ function ProgramMonitor({ videoRef, currentSeq, playheadFrames, setPlayheadFrame
         }
         vid.load();
       }
+
+      // Sync audio tracks (A1/A2)
+      const asset = assetsRef.current.find(a => a.id === clip.asset_id);
+      if (asset && asset.media_type === 'video') {
+        // For now, simple video-track audio. Multi-track A1/A2 wiring planned.
+        vid.muted = false;
+      }
+
       const srcInSecs = clip.source_in_frames / (window.TC ? window.TC.FPS : 59.94);
       vid.currentTime = srcInSecs;
       vid.play().catch(() => {});