# AudioLevelObserver: volume observer not working

**URL:** <https://mediasoup.discourse.group/t/audiolevelobserver-volume-observer-not-working/5518>\
**Category:** mediasoup libraries\
**Created:** [September 13, 2023, 10:58pm UTC](https://mediasoup.discourse.group/t/audiolevelobserver-volume-observer-not-working/5518 "2023-09-13T22:58:50Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![ouya99](https://yyz2.discourse-cdn.com/free1/user_avatar/mediasoup.discourse.group/ouya99/32/2346_2.png) [@ouya99](https://mediasoup.discourse.group/u/ouya99)\
**Post date:** [September 13, 2023, 10:58pm UTC](https://mediasoup.discourse.group/t/audiolevelobserver-volume-observer-not-working/5518/1 "2023-09-13T22:58:50Z")

</div>

Hello

i tried to get volume from audioLevelObserver, but having this

> this.audioLevelObserver = await this.router.createAudioLevelObserver(  
> {  
> maxEntries : 1,  
> threshold : -127,  
> interval : 1000  
> });

it will only give me an audioLevelObserver which is

> {“\_events”:{“volumes”:[null,null,null],“silence”:[null,null,null]},“\_eventsCount”:3,“\_maxListeners”:null,“internal”:{“routerId”:“9accfac3-0572-4c1d-992a-815b7d4e3b02”,“rtpObserverId”:“5c4c64a5-b163-443f-ae26-07519ea0d52e”},“channel”:{“\_events”:{},“\_eventsCount”:6,“\_maxListeners”:null},“payloadChannel”:{“\_events”:{},“\_eventsCount”:0,“\_maxListeners”:null}}

and added

> this.audioLevelObserver.on(‘volumes’, (volumes) =\> {logDebug(‘VOLUMES’, volumes);});

but no log about volume observer ever being called.

Is audioLevelObserver object i created correct?

Thanks

---

<div class="post-metadata">

**Author:** ![ibc](https://yyz2.discourse-cdn.com/free1/user_avatar/mediasoup.discourse.group/ibc/32/1540_2.png) [@ibc](https://mediasoup.discourse.group/u/ibc)\
**Post date:** [September 13, 2023, 11:28pm UTC](https://mediasoup.discourse.group/t/audiolevelobserver-volume-observer-not-working/5518/2 "2023-09-13T23:28:58Z")

</div>

The API docs clearly say that you must add audio Producer by calling addProducer():

> **[mediasoup :: API](https://mediasoup.org/documentation/v3/mediasoup/api/#AudioLevelObserver)**
>
> Cutting Edge WebRTC Video Conferencing