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  3. FAcousticEchoCancellation_DEPRECATED

FAcousticEchoCancellation_DEPRECATED

This class uses an adaptive filter to cancel out any rendered audio signal that might be picked up by the mic.

API > API/Runtime > API/Runtime/SignalProcessing > API/Runtime/SignalProcessing/DSP

Inheritance Hierarchy

References

   
Module SignalProcessing
Header /Engine/Source/Runtime/SignalProcessing/Public/DSP/VoiceProcessing.h
Include #include "DSP/VoiceProcessing.h"

Syntax

class FAcousticEchoCancellation_DEPRECATED

Remarks

This class uses an adaptive filter to cancel out any rendered audio signal that might be picked up by the mic. To add a new patch to a rendered audio signal, user AddNewSignalPatch. See FPatchInput for how to push audio. ProcessAudio then filters the microphone signal accordingly.

Constructors

  Type Name Description
Public function  

FAcousticEchoCancellation_DEPRECATED ( float InConvergenceRate,
int32 CallbackSize,
int32 InFilterLength,
int32 InFilterUpdateRate
)

 Convergence Rate should be a number between 0 and 1.

Functions

  Type Name Description
Public function FPatchInput

AddNewSignalPatch ( int32 ExpectedLatency,
float Gain
)

 This is how any signal that may be picked up by the microphone may be added to the echo cancellation here:
Public function void

ProcessAudio ( float* InAudio,
int32 NumSamples
)

 Callback function for outgoing audio signal.
Public function void

RemoveSignalPatch ( const FPatchInput& Patch
)

  

Deprecated Functions

  Type Name Description
Public function  

FAcousticEchoCancellation_DEPRECATED ( float InConvergenceRate,
int32 CallbackSize,
int32 InFilterLength,
int32 InFilterUpdateRate
)

 Convergence Rate should be a number between 0 and 1.

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