Fix syntax error in TTS stage and complete pipeline

app.py

@@ -497,7 +497,7 @@ def full_speech_translation_pipeline(audio_input_path: str):
         try:
             print("TTS: Synthesizing English speech...")
             sequence = text_to_seq(english_translation).unsqueeze(0).to(DEVICE)
-            generated_mel, _ = TTS_MODEL.inference(sequence, max_length=hp.max_mel_time-50, stop_token_threshold=0.2, with_tqdm=False)
+            generated_mel, _ = TTS_MODEL.inference(sequence, max_length=hp.max_mel_time-50, stop_token_threshold=0.5, with_tqdm=False)
             
             print(f"TTS: Generated mel shape: {generated_mel.shape if generated_mel is not None else 'None'}")
             if generated_mel is not None and generated_mel.numel() > 0: