# If there are a lot of the same sounds, I get a message \[FMOD\] DSPJobList::addJob :

**URL:** <https://qa.fmod.com/t/if-there-are-a-lot-of-the-same-sounds-i-get-a-message-fmod-dspjoblist-addjob/18320>\
**Category:** FMOD Studio\
**Created:** [February 3, 2022, 6:46pm UTC](https://qa.fmod.com/t/if-there-are-a-lot-of-the-same-sounds-i-get-a-message-fmod-dspjoblist-addjob/18320 "2022-02-03T18:46:07Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Koett](https://avatars.discourse-cdn.com/v4/letter/k/ecccb3/32.png) [@Koett](https://qa.fmod.com/u/Koett)\
**Post date:** [February 3, 2022, 6:46pm UTC](https://qa.fmod.com/t/if-there-are-a-lot-of-the-same-sounds-i-get-a-message-fmod-dspjoblist-addjob/18320/1 "2022-02-03T18:46:07Z")

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Hello!  
We have a project, a military RTS, we use a large number of events and sounds in one scene at the same time.  
We started to get these messages and I also hear a “crackle” during sound playback.  
Please tell me what may be the problem, and are there any recommendations or settings to optimize the project with a large number of events and sounds?

We use Unity engine 2021.2.6f1

 ![1](https://canada1.discourse-cdn.com/flex036/uploads/fmod/original/2X/4/4a38319f51502e2e64a5877453ac632bf8e81f1e.jpeg)  
 ![2](https://canada1.discourse-cdn.com/flex036/uploads/fmod/original/2X/4/4c84b76d4b66669fbc0ca34d93380595af32e74a.jpeg)

Best regards,  
Alex.

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<div class="post-metadata">

**Author:** ![richard\_simms](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/richard_simms/32/261_2.png) [@richard\_simms](https://qa.fmod.com/u/richard_simms)\
**Post date:** [February 4, 2022, 12:28am UTC](https://qa.fmod.com/t/if-there-are-a-lot-of-the-same-sounds-i-get-a-message-fmod-dspjoblist-addjob/18320/2 "2022-02-04T00:28:18Z")

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With a large number of events and assets being loaded, it can happen that the FMOD system runs out of resources needed to operate smoothly. I would recommend researching into event max instances, stealing, the virtual voice system, and event priorities to try and manage resources in a way that doesn’t cause the crackling and warnings you are experiencing.

[https://www.fmod.com/resources/documentation-studio?version=2.02&page=advanced-topics.html#stealing-and-virtualization](https://www.fmod.com/resources/documentation-studio?version=2.02&page=advanced-topics.html#stealing-and-virtualization)

[https://www.fmod.com/resources/documentation-studio?version=2.02&page=event-macro-controls-reference.html#priority](https://www.fmod.com/resources/documentation-studio?version=2.02&page=event-macro-controls-reference.html#priority)

You should also use the Live Update to see which events in particular could be using the most resources to focus on managing.

[https://www.fmod.com/resources/documentation-studio?version=2.02&page=profiling.html](https://www.fmod.com/resources/documentation-studio?version=2.02&page=profiling.html)