how release a mic?

[HedgehogYurii]

I used this code in my project. when selecting "1" in the menu, this code is run. how do I release the microphone fromspeech recognition? i try this:
except KeyboardInterrupt:
source.stream.pyaudio_stream.stop_stream()
source.stream.pyaudio_stream.close()
break

but this lines close whole app((, not just function, where i used this code