# Microphone Event Listener

**URL:** <https://devforum.zoom.us/t/microphone-event-listener/40066>\
**Category:** Windows\
**Created:** [January 8, 2021, 4:54pm UTC](https://devforum.zoom.us/t/microphone-event-listener/40066 "2021-01-08T16:54:21Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![mgn17](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/mgn17/32/21194_2.png) [@mgn17](https://devforum.zoom.us/u/mgn17)\
**Post date:** [January 8, 2021, 4:54pm UTC](https://devforum.zoom.us/t/microphone-event-listener/40066/1 "2021-01-08T16:54:21Z")

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Good afternoon,

I’m trying to find the correct event listener for when the microphone is being used in a meeting, and by that I mean that the user is unmuted and is currently speaking and the microphone is picking up the audio. But all I seem to find is the event listener for testing the microphone in the settings.

The sdk version I am using is 5.4.54524.122 on Windows

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**Author:** ![Michael\_Condon](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/michael_condon/32/13543_2.png) [@Michael\_Condon](https://devforum.zoom.us/u/Michael_Condon)\
**Post date:** [January 8, 2021, 8:21pm UTC](https://devforum.zoom.us/t/microphone-event-listener/40066/2 "2021-01-08T20:21:26Z")

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Hey @mgn17,

Thanks for using the dev forum!

The interface `IMeetingAudioCtrlEvent` has a callback event `onUserActiveAudioChange` that is called when there is a change in a user’s active audio. For example, if a user’s microphone detected a noise when there wasn’t any noise before, or when the user’s microphone stops detecting a noise when there was previously a noise. In that callback, you can tell if the user’s microphone is currently detecting a noise by checking the property `IsTalking` in the interface `IUserInfo`.

Please note, there is also a callback `onUserAudioStatusChange` which is different from `onUserActiveAudioChange`.

Thanks!  
Michael

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<div class="post-metadata">

**Author:** ![mgn17](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/mgn17/32/21194_2.png) [@mgn17](https://devforum.zoom.us/u/mgn17)\
**Post date:** [January 8, 2021, 9:14pm UTC](https://devforum.zoom.us/t/microphone-event-listener/40066/3 "2021-01-08T21:14:03Z")

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Thank you Michael for your help!

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**Author:** ![Michael\_Condon](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/michael_condon/32/13543_2.png) [@Michael\_Condon](https://devforum.zoom.us/u/Michael_Condon)\
**Post date:** [January 11, 2021, 10:14pm UTC](https://devforum.zoom.us/t/microphone-event-listener/40066/4 "2021-01-11T22:14:07Z")

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You are welcome!  
Please let us know if have any other questions.

Michael