# Set Buffer Size

**URL:** <https://qa.fmod.com/t/set-buffer-size/13465>\
**Category:** Unity\
**Created:** [September 25, 2017, 1:52pm UTC](https://qa.fmod.com/t/set-buffer-size/13465 "2017-09-25T13:52:04Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![ATHellboy](https://avatars.discourse-cdn.com/v4/letter/a/4491bb/32.png) [@ATHellboy](https://qa.fmod.com/u/ATHellboy)\
**Post date:** [September 25, 2017, 1:52pm UTC](https://qa.fmod.com/t/set-buffer-size/13465/1 "2017-09-25T13:52:04Z")

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How can I change buffersize in FMOD Studio Unity Integration 1.09.06 ? I try to set it by RuntimeManager.LowLevelSystem.setBufferSize but nothing change. it is on default values like before I mean 1024 and 4. I want to change it to 512 and 2.

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<div class="post-metadata">

**Author:** ![cameron-fmod](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/cameron-fmod/32/261_2.png) [@cameron-fmod](https://qa.fmod.com/u/cameron-fmod)\
**Post date:** [September 25, 2017, 10:35pm UTC](https://qa.fmod.com/t/set-buffer-size/13465/2 "2017-09-25T22:35:29Z")

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Make sure you are caling setDSPBufferSize before System::Init in the RuntimeManager.cs.  
It won’t work if it is called afterwards, have a read through the docs to make sure there isn’t anything you may have missed:

[https://www.fmod.org/docs/content/generated/FMOD\_System\_SetDSPBufferSize.html](https://www.fmod.org/docs/content/generated/FMOD_System_SetDSPBufferSize.html)