# What is onAudioQos? **URL:** \ **Category:** Web\ **Created:** [October 11, 2022, 2:39pm UTC](https://devforum.zoom.us/t/what-is-onaudioqos/77263 "2022-10-11T14:39:39Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Felippe](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/felippe/32/33716_2.png) [@Felippe](https://devforum.zoom.us/u/Felippe)\ **Post date:** [October 11, 2022, 2:39pm UTC](https://devforum.zoom.us/t/what-is-onaudioqos/77263/1 "2022-10-11T14:39:39Z")
In the Meetings Web SDK reference I cans ee both `onAudioQos` and `onVideoQos` as `InMeetingEvent` events, but I can’t find an explanation of what it is and when they are triggered. Could you clarify? ---
**Author:** ![michael\_p.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/michael_p.zoom/32/18105_2.png) [@michael\_p.zoom](https://devforum.zoom.us/u/michael_p.zoom)\ **Post date:** [October 11, 2022, 8:12pm UTC](https://devforum.zoom.us/t/what-is-onaudioqos/77263/2 "2022-10-11T20:12:49Z")
Hi @Felippe , The onAudioQoS and onVideoQos is an event that occurs when the audio or video statistics have changed, similar to the Video SDK QoS. 1 - [Zoom Video SDK for Web - 1.5.1](https://marketplacefront.zoom.us/sdk/custom/web/modules.html#event_video_statistic_data_change) ---
**Author:** ![system](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/6/1/614bdd549b610bbaa46ff934617683a02bdaa03c.png) [@system](https://devforum.zoom.us/u/system)\ **Post date:** [November 11, 2022, 6:13am UTC](https://devforum.zoom.us/t/what-is-onaudioqos/77263/3 "2022-11-11T06:13:41Z")
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