Update app.py

app.py

@@ -18,7 +18,7 @@ def convert(audio):
     data = resample(data, int(data.shape[0] * 44100 / 48000))
     
     # convert to mono
-    data = np.mean(data, axis=1)
+    data = np.mean(data, axis=0)
     
     # convert to float32
     data = data.astype(np.float32)