Update orpheus_tts.py

orpheus_tts.py

@@ -20,7 +20,7 @@ TEMP_DIR = "/tmp/tts_output"
 VOICE_REF_DIR = "/app/assets"
 SAMPLE_RATE = 24000
 
-FALLBACK_VOICE = os.environ.get("ORPHEUS_VOICE", "hannah")
+FALLBACK_VOICE = os.environ.get("ORPHEUS_VOICE", "leo")
 
 # Special token IDs for Orpheus
 TOKEN_START_OF_HUMAN = 128259
@@ -476,4 +476,4 @@ def generate_audio(text: str, output_filename: str = None) -> str:
 
     except Exception as e:
         logger.error(f"[{_ts()}] [TTS] Error: {e}", exc_info=True)
-        return None
+        return None