# How to change the master volume

**URL:** <https://qa.fmod.com/t/how-to-change-the-master-volume/12495>\
**Category:** Unreal Engine\
**Created:** [May 16, 2016, 12:59am UTC](https://qa.fmod.com/t/how-to-change-the-master-volume/12495 "2016-05-16T00:59:16Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![geoff](https://avatars.discourse-cdn.com/v4/letter/g/a3d4f5/32.png) [@geoff](https://qa.fmod.com/u/geoff)\
**Post date:** [May 16, 2016, 12:59am UTC](https://qa.fmod.com/t/how-to-change-the-master-volume/12495/1 "2016-05-16T00:59:16Z")

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One question we have been asked is how to change the overall master volume when using FMOD and the UE4 integration.

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**Author:** ![geoff](https://avatars.discourse-cdn.com/v4/letter/g/a3d4f5/32.png) [@geoff](https://qa.fmod.com/u/geoff)\
**Post date:** [May 16, 2016, 1:01am UTC](https://qa.fmod.com/t/how-to-change-the-master-volume/12495/2 "2016-05-16T01:01:28Z")

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The simplest way to change the volume for a set of sounds is to set the bus volume. If you route all your sounds into a bus then setting that volume will change the overall volume of the game.

You can do this by blueprint, using the BusSetFaderLevel function. The bus should be listed in the content window so you can select the bus easily via the UI.

By routing into a few major buses, you can easily change just the music, or just the SFX.

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**Author:** ![Zelotos](https://avatars.discourse-cdn.com/v4/letter/z/5f9b8f/32.png) [@Zelotos](https://qa.fmod.com/u/Zelotos)\
**Post date:** [May 17, 2016, 2:02pm UTC](https://qa.fmod.com/t/how-to-change-the-master-volume/12495/3 "2016-05-17T14:02:56Z")

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> [@](#):
>
> The simplest way to change the volume for a set of sounds is to set the bus volume. If you route all your sounds into a bus then setting that volume will change the overall volume of the game.
> 
> You can do this by blueprint, using the BusSetFaderLevel function. The bus should be listed in the content window so you can select the bus easily via the UI.
> 
> By routing into a few major buses, you can easily change just the music, or just the SFX.

Thanks! My team just got around to making the options menu. Since we couldn’t find a way to use VCAs in UE4.11, we used the buses instead as described above.

Still, based on the descriptions of VCAs in the FMOD User Manual and the Sound Librarian’s FMOD 101 Course, I expected to be using the VCAs in order to control the volume of audio groups (sfx, music, master) in the game’s menu. The VCA’s I’ve set up in FMOD Studio (1.08.03) show up in UE’s content browser but I haven’t found a way yet to manipulate them in UE. Is there a way to control VCAs in UE4.11?

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**Author:** ![geoff](https://avatars.discourse-cdn.com/v4/letter/g/a3d4f5/32.png) [@geoff](https://qa.fmod.com/u/geoff)\
**Post date:** [May 18, 2016, 3:49am UTC](https://qa.fmod.com/t/how-to-change-the-master-volume/12495/4 "2016-05-18T03:49:57Z")

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That’s a very good point, I forgot to expose VCA to Blueprint. The next patch release will have a VCASetFaderLevel function. Using VCA to control volume is an equally good way to do it.

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**Author:** ![Zelotos](https://avatars.discourse-cdn.com/v4/letter/z/5f9b8f/32.png) [@Zelotos](https://qa.fmod.com/u/Zelotos)\
**Post date:** [May 18, 2016, 6:47am UTC](https://qa.fmod.com/t/how-to-change-the-master-volume/12495/5 "2016-05-18T06:47:45Z")

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That’s great–thanks!

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**Author:** ![orrinjones.jr](https://avatars.discourse-cdn.com/v4/letter/o/a88e57/32.png) [@orrinjones.jr](https://qa.fmod.com/u/orrinjones.jr)\
**Post date:** [May 17, 2017, 7:11pm UTC](https://qa.fmod.com/t/how-to-change-the-master-volume/12495/6 "2017-05-17T19:11:04Z")

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Hi. I would also like to know the same thing but for unity. Is there a way to change vca volume via c# scripting in unity?

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**Author:** ![charlesinterface](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/charlesinterface/32/2452_2.png) [@charlesinterface](https://qa.fmod.com/u/charlesinterface)\
**Post date:** [July 21, 2021, 7:31pm UTC](https://qa.fmod.com/t/how-to-change-the-master-volume/12495/7 "2021-07-21T19:31:59Z")

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[Ajustar el Audio General en Unreal Engine 4 con FMOD - YouTube](https://www.youtube.com/watch?v=Sauhkyw85qA)

this video can be of help
