# Bypassing compressors with ratio on 1.0:1?

**URL:** <https://qa.fmod.com/t/bypassing-compressors-with-ratio-on-1-0-1/22263>\
**Category:** FMOD Studio\
**Created:** [November 5, 2024, 12:18pm UTC](https://qa.fmod.com/t/bypassing-compressors-with-ratio-on-1-0-1/22263 "2024-11-05T12:18:38Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![deHaan](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/dehaan/32/68_2.png) [@deHaan](https://qa.fmod.com/u/deHaan)\
**Post date:** [November 5, 2024, 12:18pm UTC](https://qa.fmod.com/t/bypassing-compressors-with-ratio-on-1-0-1/22263/1 "2024-11-05T12:18:39Z")

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Hi,

I am trying do do some dynamic mixing, where I’ll have snapshots instruments automate the ration on compressors on certain mixer groups, to make sure only loud sounds are ducked/compressed while an important sounds play.

This works great, however I noticed that the compressor effect uses CPU even, when the ration is set to 1.0:1 (when I am not using it). Is there no way around this? I am on 2.02.22

Thank you!

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**Author:** ![li\_fmod](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/li_fmod/32/6577_2.png) [@li\_fmod](https://qa.fmod.com/u/li_fmod)\
**Post date:** [November 8, 2024, 5:56am UTC](https://qa.fmod.com/t/bypassing-compressors-with-ratio-on-1-0-1/22263/2 "2024-11-08T05:56:33Z")

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Hi,

Thank you for sharing the information.

> [@deHaan](#):
>
> This works great, however I noticed that the compressor effect uses CPU even, when the ration is set to 1.0:1 (when I am not using it). Is there no way around this?

Unfortunately, effects like the compressor still consume CPU resources even when they’re not actively processing (i.e., when the ratio is set to 1.0:1). They remain active unless you remove or bypass them entirely.

One potential workaround is to use [DSP::setBypass](https://fmod.com/docs/2.02/api/core-api-dsp.html#dsp_setbypass) to dynamically bypass the compressor effect through code when it’s not needed, which would help reduce CPU usage.

Hope this helps, let me know if you have any questions.