# When is 'onOneWayAudioRawDataReceived' callback triggered?

**URL:** <https://devforum.zoom.us/t/when-is-ononewayaudiorawdatareceived-callback-triggered/49148>\
**Category:** Video SDK\
**Created:** [April 29, 2021, 3:12am UTC](https://devforum.zoom.us/t/when-is-ononewayaudiorawdatareceived-callback-triggered/49148 "2021-04-29T03:12:14Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![tlol91](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/tlol91/32/24127_2.png) [@tlol91](https://devforum.zoom.us/u/tlol91)\
**Post date:** [April 29, 2021, 3:12am UTC](https://devforum.zoom.us/t/when-is-ononewayaudiorawdatareceived-callback-triggered/49148/1 "2021-04-29T03:12:14Z")

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**Description**  
A clear and concise description of what the question is.

> **[Raw Data](https://marketplace.zoom.us/docs/sdk/video/windows/advanced/raw-data/)**
>
> The Zoom Developer Platform is an open platform that allows third-party developers to build applications and integrations upon Zoom’s video-first unified communications platform.

As the link above, I implemented two callbacks, ‘onMixedAudioRawDataReceived’ and ‘onOneWayAudioRawDataReceived’, and subscribed the listener. But only ‘onMixedAudioRawDataReceived’ callback is triggered. How can I trigger ‘onOneWayAudioRawDataReceived’?

**Which Desktop Video SDK version?**  
Knowing the version can help us to identify your issue faster.  
zoom-instant-sdk-windows-1.0.2

**To Reproduce(If applicable)**  
Steps to reproduce the behavior:  
m\_pInstantSDK = CreateZoomInstantSDKObj();  
m\_pInstantSDK-\>initialize(initParams);  
m\_pInstantSDK-\>addListener(this);  
m\_pInstantSDK-\>joinSession(\*m\_pSessionContext);  
pAudioHelper = m\_pInstantSDK-\>getAudioHelper();  
pAudioHelper-\>subscribe();

**Screenshots**  
If applicable, add screenshots to help explain your problem.

 ![image](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/7/5/75cec65c3cb195863e8e7b29c710a18af3eca81b.png)

 ![2021-04-29 (8)](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/3/e/3e6628365845898c04e6d0ed3ad79ad7c944dc88.png)

**Device (please complete the following information):**  
window 10

**Additional context**  
Add any other context about the problem here.

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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:** [April 29, 2021, 6:06pm UTC](https://devforum.zoom.us/t/when-is-ononewayaudiorawdatareceived-callback-triggered/49148/2 "2021-04-29T18:06:29Z")

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Hey @tlol91,

Hmm that is strange. If you are seeing the mixedaudio callback fire, you should also be seeing the oneWay audio callback fire.

Thanks!  
Michael

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**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:** [May 30, 2021, 4:07am UTC](https://devforum.zoom.us/t/when-is-ononewayaudiorawdatareceived-callback-triggered/49148/3 "2021-05-30T04:07:16Z")

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