# Audio quality is different when building Unity project using FMOD integration and Unity Audio

**URL:** <https://qa.fmod.com/t/audio-quality-is-different-when-building-unity-project-using-fmod-integration-and-unity-audio/20513>\
**Category:** Unity\
**Tags:** android, unity\
**Created:** [August 8, 2023, 12:49pm UTC](https://qa.fmod.com/t/audio-quality-is-different-when-building-unity-project-using-fmod-integration-and-unity-audio/20513 "2023-08-08T12:49:47Z")\
**Posts on this page:** 1\
**Showing post:** 16

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**Author:** ![Connor\_FMOD](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/connor_fmod/32/3685_2.png) [@Connor\_FMOD](https://qa.fmod.com/u/Connor_FMOD)\
**Post date:** [September 7, 2023, 6:29am UTC](https://qa.fmod.com/t/audio-quality-is-different-when-building-unity-project-using-fmod-integration-and-unity-audio/20513/16 "2023-09-07T06:29:23Z")

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Hi,

After some investigation, it seems that this issue is linked to a previous forum post here: [Volume difference between Audio APIs - #2 by jeff\_fmod](https://qa.fmod.com/t/volume-difference-between-audio-apis/19298/2).

Unfortunately, we are not able to solve the issue at this time. A workaround may be changing the output used by the FMOD core system to OpenSL.

I would recommend using the [Unity Integration | Scripting Examples - Callback Handler](https://fmod.com/docs/2.02/unity/examples-callback-handler.html) to change the output before the FMOD system initializes. To change the output you need to call [FMOD Engine | Core API Reference - System::setOutput](https://fmod.com/docs/2.02/api/core-api-system.html#system_setoutput).

Hope this helps.

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_[View the full topic](https://qa.fmod.com/t/audio-quality-is-different-when-building-unity-project-using-fmod-integration-and-unity-audio/20513)._