diff --git a/video_has_audio_node.py b/video_has_audio_node.py
index 18cd194..ec50207 100644
--- a/video_has_audio_node.py
+++ b/video_has_audio_node.py
@@ -1,6 +1,12 @@
 import subprocess
 import json
 import shutil
+import os
+
+try:
+    import folder_paths
+except ImportError:
+    folder_paths = None
 
 
 class VideoHasAudioNode:
@@ -29,10 +35,49 @@ class VideoHasAudioNode:
         has_audio = self._probe_has_audio(input_file)
         return (has_audio, 1 if has_audio else 0)
 
+    def _resolve_path(self, input_file):
+        if os.path.isabs(input_file) and os.path.exists(input_file):
+            return input_file
+
+        if folder_paths is not None:
+            try:
+                annotated = folder_paths.get_annotated_filepath(input_file)
+                if annotated and os.path.exists(annotated):
+                    return annotated
+            except Exception:
+                pass
+
+            candidate_dirs = []
+            for getter in ("get_input_directory", "get_output_directory", "get_temp_directory"):
+                fn = getattr(folder_paths, getter, None)
+                if fn is not None:
+                    try:
+                        candidate_dirs.append(fn())
+                    except Exception:
+                        pass
+
+            for d in candidate_dirs:
+                if not d:
+                    continue
+                candidate = os.path.join(d, input_file)
+                if os.path.exists(candidate):
+                    return candidate
+
+        if os.path.exists(input_file):
+            return input_file
+
+        return None
+
     def _probe_has_audio(self, input_file):
         if not input_file or not input_file.strip():
             return False
 
+        resolved = self._resolve_path(input_file.strip())
+        if resolved is None:
+            raise RuntimeError(
+                f"Video file not found: '{input_file}'. Checked absolute path and ComfyUI input/output/temp directories."
+            )
+
         ffprobe = shutil.which("ffprobe") or "ffprobe"
         cmd = [
             ffprobe,
@@ -40,7 +85,7 @@ class VideoHasAudioNode:
             "-select_streams", "a",
             "-show_entries", "stream=index",
             "-of", "json",
-            input_file,
+            resolved,
         ]
 
         try: