Update app.py

app.py

@@ -116,7 +116,7 @@ def spectrogram_image_from_file(filename, max_volume: float = 50, power_for_imag
     Generate a spectrogram image from an MP3 file.
     """
 
-    max_volume = int(args.maxvol)
+    max_volume = int(max_volume)
     power_for_image = float(args.powerforimage)
 
     # Load MP3 file into AudioSegment object
@@ -144,7 +144,7 @@ def spectrogram_image_from_file(filename, max_volume: float = 50, power_for_imag
 
 def convert(audio):
     
-    image = spectrogram_image_from_file(audio)
+    image = spectrogram_image_from_file(audio, 255)
 
     return image