# Select video and audio input device , and change audio input volume level

**URL:** <https://openvidu.discourse.group/t/select-video-and-audio-input-device-and-change-audio-input-volume-level/3360>\
**Category:** Issues developing apps\
**Tags:** v2\
**Created:** [September 6, 2021, 2:09am UTC](https://openvidu.discourse.group/t/select-video-and-audio-input-device-and-change-audio-input-volume-level/3360 "2021-09-06T02:09:45Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![buck](https://avatars.discourse-cdn.com/v4/letter/b/c5a1d2/32.png) [@buck](https://openvidu.discourse.group/u/buck)\
**Post date:** [September 6, 2021, 2:09am UTC](https://openvidu.discourse.group/t/select-video-and-audio-input-device-and-change-audio-input-volume-level/3360/1 "2021-09-06T02:09:45Z")

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Hello.

 ![image](https://global.discourse-cdn.com/free1/uploads/openvidu/original/2X/2/27d69a314b996cd1d4446a5effc94e84d87c4b51.png)

of the attached image  
As in the openvidu-call demo, is there a way to select an input device and adjust the volume level of the input audio?

I am in the process of applying the necessary functions to openvidu-browser.js little by little by referring to the v2.19.0 guide document,

and I cannot work with node and typescript. The guide document is very kindly explained, but it is difficult to find a hint about the function I mentioned.