Update parse_tsv method

app.py

@@ -227,7 +227,7 @@ def check_pronunciation_demo(reference_audio, input_audio, labels_data, threshol
 def parse_tsv(file_path):
     transcriptions = []
 
-    num_to_subtract = float('inf')
+    num_to_subtract = None
     
     if os.path.exists(file_path):
         with open(file_path, "r", encoding="utf-8") as f:
@@ -235,12 +235,15 @@ def parse_tsv(file_path):
             for row in reader:
                 if len(row) == 4:  # Ensure it has the expected 4 columns
                     start, end, latin, arabic = row
-                    start = float(start)/1000.
-                    end = float(end)/1000.
-                    
-                    num_to_subtract = min(num_to_subtract, start)
+                    start = int(start)
+                    end = int(end)
+                    if num_to_subtract is None:
+                        num_to_subtract = start
                     start -= num_to_subtract
                     end -= num_to_subtract
+
+                    start = float(start)/1000.
+                    end = float(end)/1000.
                     
                     transcriptions.append((start, end, latin, arabic))
     return transcriptions