# Is it possible to create weapon sounds in FMOD that handle a dynamically changing fire rate?

**URL:** <https://qa.fmod.com/t/is-it-possible-to-create-weapon-sounds-in-fmod-that-handle-a-dynamically-changing-fire-rate/22253>\
**Category:** Unity\
**Created:** [November 2, 2024, 6:02am UTC](https://qa.fmod.com/t/is-it-possible-to-create-weapon-sounds-in-fmod-that-handle-a-dynamically-changing-fire-rate/22253 "2024-11-02T06:02:50Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![BulletproofDuck](https://avatars.discourse-cdn.com/v4/letter/b/6f9a4e/32.png) [@BulletproofDuck](https://qa.fmod.com/u/BulletproofDuck)\
**Post date:** [November 2, 2024, 6:02am UTC](https://qa.fmod.com/t/is-it-possible-to-create-weapon-sounds-in-fmod-that-handle-a-dynamically-changing-fire-rate/22253/1 "2024-11-02T06:02:50Z")

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In my game, certain weapons can gradually or procedurally adjust their fire rate based on gameplay conditions, such as increasing or decreasing over time. The sound structure includes a _First Round_, _Fire Loop_, and _Tail_, with both the _First Round_ and _Fire Loop_ needing to adjust smoothly to match the fire rate. I was able to achieve this in Unity’s built-in audio system but am moving to FMOD due to its limitations. I’ve attached a screenshot of what I’ve managed to set up so far in FMOD, and as I’m relatively new to FMOD, any guidance on refining this setup would be greatly appreciated.

 ![Screenshot 2024-11-02 112955](https://canada1.discourse-cdn.com/flex036/uploads/fmod/original/2X/5/5b45582f448fc2277037e75a0b67f4ed5217f38f.png)

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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:** [November 6, 2024, 5:54am UTC](https://qa.fmod.com/t/is-it-possible-to-create-weapon-sounds-in-fmod-that-handle-a-dynamically-changing-fire-rate/22253/2 "2024-11-06T05:54:57Z")

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Hi,

An option may be adding automation to the `Spawn Rate` of the scatterer instrument:

 ![image](https://canada1.discourse-cdn.com/flex036/uploads/fmod/original/2X/0/06a2ab269f82b2085695dfc479c8a7cb06668594.png)  
 ![image](https://canada1.discourse-cdn.com/flex036/uploads/fmod/original/2X/8/84ffe670cd6824db2cd8a25f9d54881cf0506953.png)  
 ![image](https://canada1.discourse-cdn.com/flex036/uploads/fmod/original/2X/5/59e74cb982b1be120146492c8eeeff961e91a6b9.png)  
 ![image](https://canada1.discourse-cdn.com/flex036/uploads/fmod/original/2X/2/2b9197f17d38dc95c20f61fb6aeaec0170aa60c0.png)  
More information about automation can be read here: [FMOD Studio | Glossary - Automation](https://fmod.com/docs/2.02/studio/glossary.html#automation)

Hope this helps!