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Enable audio spatialization by default for agent voice

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- Attach AudioPlaybackComponent to owner's root component for proper
  3D world positioning (was unattached = stuck at origin)
- Enable default inline spatialization with 15m falloff distance when
  no external SoundAttenuation asset is set
- External SoundAttenuation asset still overrides the default if set

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
j.foucher 2026-03-02 17:58:10 +01:00
parent 76dd13944a
commit 3952847ece
1 changed files with 21 additions and 3 deletions
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24
Unreal/PS_AI_Agent/Plugins/PS_AI_ConvAgent/Source/PS_AI_ConvAgent/Private/PS_AI_ConvAgent_ElevenLabsComponent.cpp
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@ -1004,20 +1004,38 @@ void UPS_AI_ConvAgent_ElevenLabsComponent::InitAudioPlayback()
ProceduralSoundWave->SoundGroup = SOUNDGROUP_Voice; ProceduralSoundWave->SoundGroup = SOUNDGROUP_Voice;
ProceduralSoundWave->bLooping = false; ProceduralSoundWave->bLooping = false;
// Create the audio component attached to the owner. // Create the audio component and attach to the owner's root for proper
// world positioning (required for 3D spatialization).
AudioPlaybackComponent = NewObject<UAudioComponent>(Owner, TEXT("PS_AI_ConvAgent_Audio_ElevenLabsPlayback")); AudioPlaybackComponent = NewObject<UAudioComponent>(Owner, TEXT("PS_AI_ConvAgent_Audio_ElevenLabsPlayback"));
AudioPlaybackComponent->RegisterComponent(); AudioPlaybackComponent->RegisterComponent();
if (USceneComponent* Root = Owner->GetRootComponent())
{
AudioPlaybackComponent->AttachToComponent(Root,
FAttachmentTransformRules::SnapToTargetNotIncludingScale);
}
AudioPlaybackComponent->bAutoActivate = false; AudioPlaybackComponent->bAutoActivate = false;
AudioPlaybackComponent->SetSound(ProceduralSoundWave); AudioPlaybackComponent->SetSound(ProceduralSoundWave);
// Spatialization: if an attenuation asset is set, enable 3D audio so the // Spatialization: enable 3D audio so the agent's voice pans and
// agent's voice attenuates with distance and pans spatially for the listener. // attenuates based on distance and direction from the listener.
if (SoundAttenuation) if (SoundAttenuation)
{ {
// Use the externally authored attenuation asset.
AudioPlaybackComponent->AttenuationSettings = SoundAttenuation; AudioPlaybackComponent->AttenuationSettings = SoundAttenuation;
AudioPlaybackComponent->bOverrideAttenuation = false; AudioPlaybackComponent->bOverrideAttenuation = false;
AudioPlaybackComponent->bAllowSpatialization = true; AudioPlaybackComponent->bAllowSpatialization = true;
} }
else
{
// Default spatialization with inline attenuation — works out of the box.
// Override with an external SoundAttenuation asset for fine-tuning.
AudioPlaybackComponent->bAllowSpatialization = true;
AudioPlaybackComponent->bOverrideAttenuation = true;
FSoundAttenuationSettings& Att = AudioPlaybackComponent->AttenuationOverrides;
Att.bAttenuate = true;
Att.bSpatialize = true;
Att.FalloffDistance = 1500.0f; // Full attenuation over 15 meters.
}
// When the procedural sound wave needs more audio data, pull from our queue. // When the procedural sound wave needs more audio data, pull from our queue.
ProceduralSoundWave->OnSoundWaveProceduralUnderflow = ProceduralSoundWave->OnSoundWaveProceduralUnderflow =