# Command Buffer Overflow when triggering an FMOD Global Parameter

**URL:** <https://qa.fmod.com/t/command-buffer-overflow-when-triggering-an-fmod-global-parameter/22689>\
**Category:** Unity\
**Created:** [March 12, 2025, 12:47pm UTC](https://qa.fmod.com/t/command-buffer-overflow-when-triggering-an-fmod-global-parameter/22689 "2025-03-12T12:47:08Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![GPTgo](https://avatars.discourse-cdn.com/v4/letter/g/e9c0ed/32.png) [@GPTgo](https://qa.fmod.com/u/GPTgo)\
**Post date:** [March 12, 2025, 12:47pm UTC](https://qa.fmod.com/t/command-buffer-overflow-when-triggering-an-fmod-global-parameter/22689/1 "2025-03-12T12:47:08Z")

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Hi!

I am a Music Production student with absolutely zero coding knowledge or game engine knowhow tasked to create audio for a video game project handed to us as an assignment in one of my school modules.

My current situation is that I have already created and assigned sound fxs to all the relevant objects in the scene, and I have created and implemented the whole soundtrack as well. All of a sudden, after being able to test play the game within the editor without issues multiple times, I now get a “command Buffer overflow” after me picking up a key in-game, triggering a single Global Parameter Trigger to move from stage 1 in the musical composition to stage 2.

I have tried limiting Max Instances in as many places as I can and also set colliders to activate sounds only when the player is near to diminish the amount of sounds that happen at once.

Does anyone know what could be happening and how to fix it? Also I don’t know what information is relevant for any of you to be able to better assess the issue, so please let me know if you want screenshots or whatever and I will reply with the requested files.

Thank you all for your time and help!

\<3\<3\<3\<3\<3

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<div class="post-metadata">

**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:** [March 14, 2025, 12:58am UTC](https://qa.fmod.com/t/command-buffer-overflow-when-triggering-an-fmod-global-parameter/22689/2 "2025-03-14T00:58:29Z")

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Hi,

Thank you for the information.

Could I grab some more info:

- What if your FMOD and Unity versions?
- How are you triggering the value change?
  - Are you using a [Studio Parameter Trigger](https://fmod.com/docs/2.02/unity/game-components.html#studio-parameter-trigger) or your own code?

- Could you please run a profiler session ([FMOD Studio | Profliling](https://fmod.com/docs/2.02/studio/profiling.html)) and take a screenshot of the session:  
 ![image](https://canada1.discourse-cdn.com/flex036/uploads/fmod/original/2X/e/ef91f05449a759c65c17556440da21e9bd09569a.png)

Thanks!