# Audio and Video

![](/files/-MadyOAfyV69gfxfIx_x)

**Call audio input source** allows you to set the audio input device for phone calls.

**Call audio output destination** allows you to set the audio output device for phone calls.

**Video source** allows you to set the device for one-to-one video calls.  

{% hint style="info" %}
**Note:** This setting does not control the video source for [video meetings](/desktop-user-guide-1.6/video-meetings/meetings-page.md), that is controlled separately within the video meeting interface.
{% endhint %}

**Notifications audio output destination** allows you to set the audio output device for application notifications.

To start a test of current audio and video settings, click on **Test configuration**. Click **Stop test** to stop the test once it has begun.


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