# Abnormal sound when using FMOD\_OPENUSER

**URL:** <https://qa.fmod.com/t/abnormal-sound-when-using-fmod-openuser/21621>\
**Category:** FMOD Engine\
**Created:** [May 14, 2024, 6:54am UTC](https://qa.fmod.com/t/abnormal-sound-when-using-fmod-openuser/21621 "2024-05-14T06:54:37Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![jeff\_fmod](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/jeff_fmod/32/1766_2.png) [@jeff\_fmod](https://qa.fmod.com/u/jeff_fmod)\
**Post date:** [May 17, 2024, 5:56am UTC](https://qa.fmod.com/t/abnormal-sound-when-using-fmod-openuser/21621/4 "2024-05-17T05:56:54Z")

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I can see how a buffer size of 400ms would be too much latency for you. 14ms is definitely too small because it is only slightly larger than our mixer update speed of 10ms, so you are likely to get stream stuttering with a buffer of this size.  
Generally a latency of 50ms is sufficient for real time purposes, so perhaps a buffer size of `1920` would suit your needs better?

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