Error when attempting to use speaker audio

[ReddKarma]

I've been trying to get this to recognise speech from the audio output of my headphone speakers, I found the correct device index and set it but it gives me this error whenever i try using a speaker instead of a microphone

line 465, in listen
    assert source.stream is not None, "Audio source must be entered before listening, see documentation for ``AudioSource``; are you using ``source`` outside of a ``with`` statement?"
AssertionError: Audio source must be entered before listening, see documentation for ``AudioSource``; are you using ``source`` outside of a ``with`` statement?

here is a snippet of the code:

with sr.Microphone(sample_rate=16000, device_index=6) as source:
        print("Say something")
        i = 0
        while True:
            audio = r.listen(source)

I didn't change anything big aside from adding comments and setting a device index for my speakers. the error points to the last line
audio = r.listen(source)

[mallorbc]

It works with the change you made? Perhaps an argument to pass would be allowing one to set the device index