diff --git a/whisper-2023/microphone_recognition.py b/whisper-2023/microphone_recognition.py
index 357cc96..2fad802 100644
--- a/whisper-2023/microphone_recognition.py
+++ b/whisper-2023/microphone_recognition.py
@@ -77,8 +77,8 @@ class Listener():
       mic_timeout=int(environ.get("MIC_TIMEOUT", 5))
       # obtain audio from the microphone
       r = sr.Recognizer()
-      #return r.listen(self.mic(), timeout=mic_timeout, phrase_time_limit=mic_timeout)
-      return r.record(self.mic(), duration=mic_timeout)
+      return r.listen(self.mic(), timeout=mic_timeout, phrase_time_limit=mic_timeout)
+      #return r.record(self.mic(), duration=mic_timeout)
 
 q = queue.Queue(maxsize=1)
 l = Listener()
@@ -89,8 +89,11 @@ try:
    while True:
       got = l.run()
       q.put(got)
+      if not got:
+         break
 except Exception:
    pass
 finally:
-   l._mic.__exit__(None, None, None)
+   if l._mic:
+      l._mic.__exit__(None, None, None)
    t.join()