Update app.py

app.py

@@ -74,11 +74,11 @@ def plot_waveform(audio_file):
         signal = np.frombuffer(w.readframes(w.getnframes()), dtype=np.int16)
         framerate = w.getframerate()
         
-        # Calculate the correct duration of the audio file
+        # Calculate the duration of the audio file
         duration = len(signal) / framerate
         
-        # Create time axis for the waveform
-        time = np.linspace(0., duration, len(signal))
+        # Create time axis for the waveform using correct duration and framerate
+        time = np.arange(0, len(signal)) / framerate
         
         # Plot the waveform
         plt.figure(figsize=(10, 4))