# Programmer Instrument Callback Delay

**URL:** https://qa.fmod.com/t/programmer-instrument-callback-delay/16229
**Category:** FMOD Engine
**Created:** [September 28, 2020, 9:07am UTC](https://qa.fmod.com/t/programmer-instrument-callback-delay/16229 "2020-09-28T09:07:35Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![yuqyu](https://avatars.discourse-cdn.com/v4/letter/y/eb8c5e/32.png) [@yuqyu](https://qa.fmod.com/u/yuqyu)
#### Post date: [September 28, 2020, 9:07am UTC](https://qa.fmod.com/t/programmer-instrument-callback-delay/16229/1 "2020-09-28T09:07:35Z")

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Hi, I want to use CREATE\_PROGRAMMER\_SOUND and DESTROY\_PROGRAMMER\_SOUND to make sure the begin and end time of the Programmer instrument, But the callback have a delay, so i cant exactly ensure its time.  
I don’t know, whether I had clearly explain my quesiont, Thanks in advance!

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### 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: [October 5, 2020, 4:14am UTC](https://qa.fmod.com/t/programmer-instrument-callback-delay/16229/2 "2020-10-05T04:14:28Z")

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What sort of delay are you seeing and how are you measuring it?  
What version of FMOD are you using?