# Read sound ampitude real time in Unreal Engine

**URL:** https://qa.fmod.com/t/read-sound-ampitude-real-time-in-unreal-engine/16091
**Category:** Unreal Engine
**Tags:** ue4
**Created:** [August 19, 2020, 2:36pm UTC](https://qa.fmod.com/t/read-sound-ampitude-real-time-in-unreal-engine/16091 "2020-08-19T14:36:29Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![bart\_kamski](https://avatars.discourse-cdn.com/v4/letter/b/c2a13f/32.png) [@bart\_kamski](https://qa.fmod.com/u/bart_kamski)
#### Post date: [August 19, 2020, 2:36pm UTC](https://qa.fmod.com/t/read-sound-ampitude-real-time-in-unreal-engine/16091/1 "2020-08-19T14:36:29Z")

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Hi,

I would like to read sound ampitude real time in Unreal Engine. I want to make sound visualization.

Thank you.

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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: [August 31, 2020, 5:01am UTC](https://qa.fmod.com/t/read-sound-ampitude-real-time-in-unreal-engine/16091/2 "2020-08-31T05:01:52Z")

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Getting a snapshot of a signal has to be done using the Core API with a custom DSP callback, but if you just want the ‘levels’ , you can query a channel or channelgroups metering info with `getmeteringinfo`. You first need to call `getdsp` on a channel or a channelgroup to get the head DSP (using `FMOD_CHANNELCONTROL_DSP_HEAD`) then call `setmeteringenabled` on it.

[https://fmod.com/resources/documentation-api?version=2.1&page=core-api-channelcontrol.html#channelcontrol\_getdsp](https://fmod.com/resources/documentation-api?version=2.1&page=core-api-channelcontrol.html#channelcontrol_getdsp)

[https://fmod.com/resources/documentation-api?version=2.1&page=core-api-dsp.html#dsp\_setmeteringenabled](https://fmod.com/resources/documentation-api?version=2.1&page=core-api-dsp.html#dsp_setmeteringenabled)

[https://fmod.com/resources/documentation-api?version=2.1&page=core-api-dsp.html#dsp\_getmeteringinfo](https://fmod.com/resources/documentation-api?version=2.1&page=core-api-dsp.html#dsp_getmeteringinfo)