# Does a DSP object used on multiple channels have to be instantiated that many times?

**URL:** https://qa.fmod.com/t/does-a-dsp-object-used-on-multiple-channels-have-to-be-instantiated-that-many-times/14680
**Category:** FMOD Engine
**Created:** [May 15, 2019, 9:22am UTC](https://qa.fmod.com/t/does-a-dsp-object-used-on-multiple-channels-have-to-be-instantiated-that-many-times/14680 "2019-05-15T09:22:54Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![chrisjdarcy](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/chrisjdarcy/32/172_2.png) [@chrisjdarcy](https://qa.fmod.com/u/chrisjdarcy)
#### Post date: [May 15, 2019, 9:22am UTC](https://qa.fmod.com/t/does-a-dsp-object-used-on-multiple-channels-have-to-be-instantiated-that-many-times/14680/1 "2019-05-15T09:22:54Z")

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For instance: I want to apply the same effect on several channels but with different settings. Do I declare an array of DSP objects equal to the number of times used? Or can a single instance of a DSP object be used on multiple channels?

Refering to this: [https://fmod.com/resources/documentation-api?version=1.10&page=content/generated/FMOD\_Channel\_AddDSP.html](https://fmod.com/resources/documentation-api?version=1.10&page=content/generated/FMOD_Channel_AddDSP.html)

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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: [May 20, 2019, 1:34am UTC](https://qa.fmod.com/t/does-a-dsp-object-used-on-multiple-channels-have-to-be-instantiated-that-many-times/14680/2 "2019-05-20T01:34:32Z")

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If you want to use the DSP on multiple channels at the same time, you will need to create multiple instances, although if you wanted to reuse/recycle the DSP you can use the same instance.