diff --git a/nodes/__init__.py b/nodes/__init__.py
index e237581..c084fd0 100644
--- a/nodes/__init__.py
+++ b/nodes/__init__.py
@@ -22,3 +22,8 @@ class ARReadAudio:
             }
         }
         return outv
+
+    def main(self, fpath):
+        signal = read_audio_file(signal_fpath)
+        return (signal,)
+