# HTML5 Core API Multi Speaker Example Not Working

**URL:** <https://qa.fmod.com/t/html5-core-api-multi-speaker-example-not-working/23062>\
**Category:** FMOD Engine\
**Tags:** javascript\
**Created:** [June 21, 2025, 5:17am UTC](https://qa.fmod.com/t/html5-core-api-multi-speaker-example-not-working/23062 "2025-06-21T05:17:03Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![tmartinez88](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/tmartinez88/32/8675_2.png) [@tmartinez88](https://qa.fmod.com/u/tmartinez88)\
**Post date:** [June 21, 2025, 5:17am UTC](https://qa.fmod.com/t/html5-core-api-multi-speaker-example-not-working/23062/1 "2025-06-21T05:17:03Z")

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The example on the web page does not work using latest Firefox/Chrome/Arc

> **[FMOD Examples - PlaySound](https://www.fmod.com/assets/html5/core_api/multiple_speaker.html)**

It does however work when I run the library locally (I have to place audiofiles in the root directory however and change the fileUrl var to point to the root

5.1 in the browser 🥰

`var fileUrl = "";`

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**Author:** ![li\_fmod](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/li_fmod/32/6577_2.png) [@li\_fmod](https://qa.fmod.com/u/li_fmod)\
**Post date:** [June 24, 2025, 2:33am UTC](https://qa.fmod.com/t/html5-core-api-multi-speaker-example-not-working/23062/2 "2025-06-24T02:33:26Z")

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Hi,

Thank you for sharing the information!

> [@tmartinez88](#):
>
> The example on the web page does not work using latest Firefox/Chrome/Arc

I’ve tested the **Multi-Speaker** example on the latest versions of Firefox, Chrome, and Arc on my end, and it seems to be working as expected.

That said, it’s possible that differences in browser settings, extensions, or even system audio configurations might be affecting playback.

Could you please clarify what exactly isn’t working for you?

- Does the page load but produce no sound?
- Are there any errors in the browser console (F12 \> Console tab)?
- Are you testing with a surround sound device (5.1 setup)?

Any additional detail will help me better understand the situation and assist you further.

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**Author:** ![tmartinez88](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/tmartinez88/32/8675_2.png) [@tmartinez88](https://qa.fmod.com/u/tmartinez88)\
**Post date:** [June 24, 2025, 3:40am UTC](https://qa.fmod.com/t/html5-core-api-multi-speaker-example-not-working/23062/3 "2025-06-24T03:40:19Z")

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Hi @li_fmod  
Sure! The website loads - but when interacting with the ‘play’ buttons everything is getting folded down to stereo. I’m using the 64 channel Blackhole virtual sound-card and monitoring the output in Ableton and can verify when clicking Surround Left Speaker or Surround Right Speaker, they simply go to channels 1 (left) or 2 (right) accordingly. When I run the sample locally (by downloading the library) i can get 5.1 to work in discrete channels however. Let me know if I can provide any more information.

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**Author:** ![li\_fmod](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/li_fmod/32/6577_2.png) [@li\_fmod](https://qa.fmod.com/u/li_fmod)\
**Post date:** [June 27, 2025, 5:44am UTC](https://qa.fmod.com/t/html5-core-api-multi-speaker-example-not-working/23062/4 "2025-06-27T05:44:22Z")

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Thank you for the clarification!

We have managed to reproduce and verify the issue!

It turns out the public version of the web page was an old version. The example has now been updated to the latest version.

Please let me know if the issue persists. Thank you again for bringing this to our attention!
