# Change ChannelOrder in unreal4

**URL:** https://qa.fmod.com/t/change-channelorder-in-unreal4/19281
**Category:** Unreal Engine
**Created:** [September 16, 2022, 5:57am UTC](https://qa.fmod.com/t/change-channelorder-in-unreal4/19281 "2022-09-16T05:57:36Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![NexonKorea](https://avatars.discourse-cdn.com/v4/letter/n/97f17d/32.png) [@NexonKorea](https://qa.fmod.com/u/NexonKorea)
#### Post date: [September 16, 2022, 5:57am UTC](https://qa.fmod.com/t/change-channelorder-in-unreal4/19281/1 "2022-09-16T05:57:36Z")

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I use 7.1.4 channel FMOD sound in Unreal 4.  
The sound’s FMOD\_CHANNELORDER is FMOD\_CHANNELORDER\_DEFAULT.  
I want to change this to FMOD\_CHANNELORDER\_WAVEFORMAT.

Is there any way?

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<div class="post-metadata">

### Author: ![jeff\_fmod](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/jeff_fmod/32/1766_2.png) [@jeff\_fmod](https://qa.fmod.com/u/jeff_fmod)
#### Post date: [September 18, 2022, 11:55pm UTC](https://qa.fmod.com/t/change-channelorder-in-unreal4/19281/2 "2022-09-18T23:55:04Z")

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You can only change a sound’s `FMOD_CHANNELORDER` when creating a sound with [`System::createSound`](https://fmod.com/docs/2.02/api/core-api-system.html#system_createsound), by setting the `channelorder` in the [`FMOD_CREATESOUNDEXINFO`](https://fmod.com/docs/2.02/api/core-api-system.html#fmod_createsoundexinfo) exinfo struct. For example:

```auto
FMOD_CREATESOUNDEXINFO exinfo = {0};
exinfo.cbsize = sizeof(FMOD_CREATESOUNDEXINFO);
exinfo.channelorder = FMOD_CHANNELORDER_WAVEFORMAT;

FMOD_SOUND *sound;
system->createSound("path/to/mysound.wav", FMOD_DEFAULT, &exinfo, &sound);

```

EDIT: I have been informed that the `FMOD_CHANNELORDER_WAVEFORMAT` is intended for internal use only and will not work with exinfo. As an alternative, if you want to match the speaker layout of `FMOD_CHANNELORDER_WAVEFORMAT` then you can use a [Channel Mix](https://fmod.com/docs/2.02/api/effects-reference.html?search=mixer%20dsp) dsp to assign each channel to the desired speaker.