Update app.py

app.py

@@ -36,6 +36,9 @@ def _infer_model_meta(model_name: str) -> int:
     if "48khz" in normalized or "48k" in normalized or "48hr" in normalized:
         return 48000
 
+    if "8khz" in normalized or normalized.endswith("_8k") or "_8k_" in normalized:
+        return 8000
+
     # Fallback for unknown 16 kHz DPDFNet variants
     return 16000
 
@@ -51,6 +54,8 @@ def discover_model_presets() -> Dict[str, ModelSpec]:
         "dpdfnet2",
         "dpdfnet4",
         "dpdfnet8",
+        "dpdfnet2_8khz",
+        "dpdfnet8_8khz",
         "dpdfnet2_48khz_hr",
         "dpdfnet8_48khz_hr",
     ]