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app.py

@@ -283,7 +283,7 @@ def stream(session_id: str) -> str:
         if audio.shape[1] > 0:
             b64 = base64.b64encode(_float_to_int16(audio[0].float().cpu().numpy()).astype("<i2").tobytes()).decode("ascii")
             yield f"{frame_ms:.1f}|{b64}"
-        buf = (0.3, 0.55, 0.85)[max(0, min(2, int(c.get("buffer", 0))))]
+        buf = (0.15, 0.3, 0.5)[max(0, min(2, int(c.get("buffer", 0))))]
         ahead = (emitted * FRAME_SAMPLES / SR) - (time.time() - t0)
         if ahead < -0.3:                              # fell behind (cold-start/hiccup) -> resync, no catch-up burst
             t0 = time.time() - (emitted * FRAME_SAMPLES / SR) + buf