Reverb no longer working

Development Audio
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1

My reverb and audio volumes no longer seem to be working in 4.23 after upgrading my project from 4.22.3.
I have enabled legacy audio in an attempt to restore it however it has no affect, and have confirmed the issue persists on other projects in 4.23.

I have troubleshooted to no avail. However, I saw a note on the 4.23 preview fixes that reverb not playing correctly was amended.
Is there a new method to enable reverb and audio volumes to work correctly?

Any help would be appreciated.

Thanks,

Dave.

2

Hello,

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Thanks

3

Thanks Jeff,

I’ll submit a bug report.
What has worked is enabling IsUsingAudioMixer = 1 in the console. By default, this must be off.
Reverb is now working, only when sounds have an applied attenuation.
I’m not sure if this is intentional and has something to do with the transition to the new audio engine but it seems to have fixed my issue.
Enabling this is causing a few crashes here and there, but at least the reverb is working again.

Dave.

4

Thanks Dave!
Hi Dgriz1, the real command is au.IsUsingAudioMixer = 1

Xavier.

5

Hi Dave, how did you change IsUsingAudioMixer to =1? Searched the console for it in the project settings but can’t find. Having problems with reverb and LPF attenuation not working.

thanks!

6

Ah thanks, thought that would have resolved the issue but didn’t. Reverb and LPF attenuation not working at all on mac for me!

7

No worries fellas.
Seems this issue still persists in the 4.23.1 hotfix.
Sorry to hear you’re still having this problem Dgriz

Dave.

8

I had a similar issue and posted the answer here.

9

There is a solution here
In short you need to go to where your engine is installed then open Config/Windows/WindowsEngine.ini and ensure the Audio section contains:

[Audio]
UseAudioMixer=true