Fix compile errors in PS_AI_Agent_ElevenLabs plugin

- Remove WebSockets from .uplugin (it is a module, not a plugin)
- Add AudioCapture plugin dependency to .uplugin
- Fix FOnAudioCaptureFunction: use OpenAudioCaptureStream (not deprecated
  OpenDefaultCaptureStream) and correct callback signature (const void* per UE 5.3+)
- Cast void* to float* inside OnAudioGenerate for float sample processing
- Fix TArray::RemoveAt: use EAllowShrinking::No instead of deprecated bool overload

Plugin now compiles cleanly with no errors or warnings on UE 5.5 / Win64.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Unreal/PS_AI_Agent/PS_AI_Agent.uproject

@@ -21,10 +21,6 @@
 		{
 			"Name": "PS_AI_Agent_ElevenLabs",
 			"Enabled": true
-		},
-		{
-			"Name": "WebSockets",
-			"Enabled": true
 		}
 	]
 }

Unreal/PS_AI_Agent/Plugins/PS_AI_Agent_ElevenLabs/PS_AI_Agent_ElevenLabs.uplugin

@@ -28,7 +28,7 @@
 	],
 	"Plugins": [
 		{
-			"Name": "WebSockets",
+			"Name": "AudioCapture",
 			"Enabled": true
 		}
 	]

Unreal/PS_AI_Agent/Plugins/PS_AI_Agent_ElevenLabs/Source/PS_AI_Agent_ElevenLabs/Private/ElevenLabsConversationalAgentComponent.cpp

@@ -262,7 +262,7 @@ void UElevenLabsConversationalAgentComponent::OnProceduralUnderflow(
 	const int32 BytesToPush = FMath::Min(AudioQueue.Num(), BytesRequired);
 
 	InProceduralWave->QueueAudio(AudioQueue.GetData(), BytesToPush);
-	AudioQueue.RemoveAt(0, BytesToPush, false);
+	AudioQueue.RemoveAt(0, BytesToPush, EAllowShrinking::No);
 }
 
 void UElevenLabsConversationalAgentComponent::EnqueueAgentAudio(const TArray<uint8>& PCMData)

Unreal/PS_AI_Agent/Plugins/PS_AI_Agent_ElevenLabs/Source/PS_AI_Agent_ElevenLabs/Private/ElevenLabsMicrophoneCaptureComponent.cpp

@@ -37,15 +37,15 @@ void UElevenLabsMicrophoneCaptureComponent::StartCapture()
 	}
 
 	// Open the default audio capture stream.
-	// FAudioCapture discovers the default device and its sample rate automatically.
+	// FOnAudioCaptureFunction uses const void* per UE 5.3+ API (cast to float* inside).
 	Audio::FOnAudioCaptureFunction CaptureCallback =
-		[this](const float* InAudio, int32 NumSamples, int32 InNumChannels,
+		[this](const void* InAudio, int32 NumFrames, int32 InNumChannels,
 			int32 InSampleRate, double StreamTime, bool bOverflow)
 		{
-			OnAudioGenerate(InAudio, NumSamples, InNumChannels, InSampleRate, StreamTime, bOverflow);
+			OnAudioGenerate(InAudio, NumFrames, InNumChannels, InSampleRate, StreamTime, bOverflow);
 		};
 
-	if (!AudioCapture.OpenDefaultCaptureStream(DeviceParams, MoveTemp(CaptureCallback), 1024))
+	if (!AudioCapture.OpenAudioCaptureStream(DeviceParams, MoveTemp(CaptureCallback), 1024))
 	{
 		UE_LOG(LogElevenLabsMic, Error, TEXT("Failed to open default audio capture stream."));
 		return;
@@ -80,7 +80,7 @@ void UElevenLabsMicrophoneCaptureComponent::StopCapture()
 // Audio callback (background thread)
 // ─────────────────────────────────────────────────────────────────────────────
 void UElevenLabsMicrophoneCaptureComponent::OnAudioGenerate(
-	const float* InAudio, int32 NumSamples,
+	const void* InAudio, int32 NumFrames,
 	int32 InNumChannels, int32 InSampleRate,
 	double StreamTime, bool bOverflow)
 {
@@ -89,8 +89,11 @@ void UElevenLabsMicrophoneCaptureComponent::OnAudioGenerate(
 		UE_LOG(LogElevenLabsMic, Verbose, TEXT("Audio capture buffer overflow."));
 	}
 
+	// Device sends float32 interleaved samples; cast from the void* API.
+	const float* FloatAudio = static_cast<const float*>(InAudio);
+
 	// Resample + downmix to 16000 Hz mono.
-	TArray<float> Resampled = ResampleTo16000(InAudio, NumSamples, InNumChannels, InSampleRate);
+	TArray<float> Resampled = ResampleTo16000(FloatAudio, NumFrames, InNumChannels, InSampleRate);
 
 	// Apply volume multiplier.
 	if (!FMath::IsNearlyEqual(VolumeMultiplier, 1.0f))

Unreal/PS_AI_Agent/Plugins/PS_AI_Agent_ElevenLabs/Source/PS_AI_Agent_ElevenLabs/Public/ElevenLabsMicrophoneCaptureComponent.h

@@ -55,12 +55,12 @@ public:
 	virtual void EndPlay(const EEndPlayReason::Type EndPlayReason) override;
 
 private:
-	/** Called by the audio capture callback on a background thread. */
-	void OnAudioGenerate(const float* InAudio, int32 NumSamples,
+	/** Called by the audio capture callback on a background thread. Raw void* per UE 5.3+ API. */
+	void OnAudioGenerate(const void* InAudio, int32 NumFrames,
 		int32 InNumChannels, int32 InSampleRate, double StreamTime, bool bOverflow);
 
-	/** Simple linear resample from InSampleRate to 16000 Hz. */
-	static TArray<float> ResampleTo16000(const float* InAudio, int32 NumSamples,
+	/** Simple linear resample from InSampleRate to 16000 Hz. Input is float32 frames. */
+	static TArray<float> ResampleTo16000(const float* InAudio, int32 NumFrames,
 		int32 InChannels, int32 InSampleRate);
 
 	Audio::FAudioCapture AudioCapture;