Update app.py

app.py

@@ -148,7 +148,7 @@ def add_voice_label(json_file, audio_path):
         
         speech_probs = []
         window_size_samples = 1536
-        for i in range(0, len(wav), window_size_samples):
+        for i in range(start_sample, end_sample, window_size_samples):
             chunk = torch.from_numpy(wav[i: i+ window_size_samples])
             if len(chunk) < window_size_samples:
               break