Update app.py

app.py

@@ -5,7 +5,9 @@ import time
 
 asr = pipeline("automatic-speech-recognition", "YSU/aspram")
 
-def transcribe(audio, state=""):
+def transcribe(audio, state=None):
+    if state is None:
+        state = ""
     # time.sleep(5)
     text = asr(audio)["text"]
     state += text + " "