Sound Class Volume Multiplier Issue

Development Programming & Scripting Blueprint
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1

Hi all,

When I play in editor (PIE) and set the volume multiplier of a sound class to 0, the audio seems to get “killed” and doesn’t come back even if I increase the volume later. This also happens for values below 0.0001. The Functionality works fine when working ebtween values of 0.001-1
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In my sound class I have enabled Always Play, and in my sound cues and meta sounds under voice management, I’ve set the Virtualization Mode to “Play When Silent.” and this hasnt resolved the issue.

Is there a workaround to prevent the sound from being stopped or to ensure it resumes correctly?

Thanks in advance for any help!

2

change the volume, then reset the audio component.

3

I found that 0.00011 is the lowest volume it can be to still tick over. Tested it using the by binding to OnAudioPlaybackPercent and printing the playtime percent. As to why that is a special number, I have no idea, it beats me, found the number used for a few different things in the engine that is audio related. Potentially this?

float SmallSize = FMath::Max( SmallDecay * 0.05f, 0.001f ); // 0.0001->0.05, 0.0048

within

void FCoreAudioEffectsManager::SetReverbEffectParameters(const FAudioEffectParameters& InEffectParameters)

in CoreAudioEffects.cpp

(I was doing some PS5 Controller Speaker work for more context, so may not be true in all cases)